Module 5 Digital Instrument

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EASA Part 66 : Digital Question

Module 05.Digital Techniques

05.01. Electronic Instruent S!stes.

Question Number. 1. What are the basic elements for 'Classic T' format?.Option A. Direction, altitude and heiht.

Option !. Airspeed, pitch and roll.

Option C. Airspeed, attitude, altitude and direction.

Correct Ans"er is. Airspeed, attitude, altitude and direction.#$planation. N%&.

Question Number. . T(pical displa(s on an #)*% are.

Option A. #nine indications.Option !. +O, -ap, lan and "eather radar.Option C. +O, lan, -ap and Attitude.

Correct Ans"er is. +O, -ap, lan and "eather radar.

#$planation. allett / Aircraft %nstruments.

Question Number. 0. An #AD% displa( sho"in a moin run"a( moes do"n durin the

final staes of an approach. The aircraft must.Option A. fl( do"n.

Option !. fl( up.

Option C. hold descent path.Correct Ans"er is. fl( do"n.

#$planation. At 22ft, durin Approach, the isin un"a( starts to moe up the #AD% displa( until,

at touch do"n, it touches the bottom of the aircraft s(mbol. %f the isin un"a( start to moe do"n

aain it means that the aircraft is climbin and should 3&4 DOWN.

Question Number. 5. Durin an instrument approach, the lideslope pointer eflects belo" thelideslope centre mar6. This means the aircraft is positioned.

Option A. aboe the lideslope.

Option !. belo" the lideslope.

Option C. to the left of the localiser.Correct Ans"er is. aboe the lideslope.

#$planation. Consider the centre of the 78* scale as the aircraft position and the pointer as the centreof the 78* beam.

Question Number. 9. #nine parameters are displa(ed on.Option A. #CA-.

Option !. #)*%.



Option C. 3-*CD:.

Correct Ans"er is. #CA-.

#$planation. #nine parameters can be displa(ed on #CA- b( selectin the #nine ae. *ee allett

/ Aircraft %nstrumnets and %nterated *(stems ae 0;1.

Question Number. <. What is the fi$ed feature of an AD%?.Option A. The lideslope pointer.

Option !. The aircraft s(mbol.

Option C. The lateral deiation bar.Correct Ans"er is. The aircraft s(mbol.

#$planation. The little aeroplane pianted in the middle of the instrument.

Question Number. =. On an #AD%, the 3liht Director command bars sho".

Option A. the path "ith respect to the hori>on.

Option !. the reuired path "ith respect to the actual path.Option C. the actual path "ith respect to the reuired path.

Correct Ans"er is. the reuired path "ith respect to the actual path.

#$planation. N%&.

Question Number. @. What instrument includes a displa( of a risin run"a(?.Option A. #CA-.

Option !. #)*%.

Option C. #AD%.

Correct Ans"er is. #AD%.#$planation. N%&.

Question Number. ;. What functions are aailable on the #)*%?.

Option A. 3ull arc and W$ onl(.

Option !. 3ull arc, W$ and -ap -ode.Option C. 3ull Arc onl(.

Correct Ans"er is. 3ull arc, W$ and -ap -ode.

#$planation. N%&.

Question Number. 12. With radio coupled autopilot, "hat are the inputs?.

Option A. AD3 and +O.Option !. %&* and +O.

Option C. AD3 and %&*.

Correct Ans"er is. %&* and +O.#$planation. N%&.

Question Number. 11. An #AD% displa( of fliht director commands are

coloured.

Option A. c(an.



Option !. maenta.

Option C. red.

Correct Ans"er is. maenta.

#$planation. Aircraft instruments and interated s(stems,palletB pae 02 fi 1.9 eadi fliht directorcommand bars are maenta.

Question Number. 1. #3%* s(stems hae t"o control panels, their purpose is.

Option A. one to control the t(pe of #3%* displa( and the other to select the source of the

information bein displa(ed.Option !. one for the #AD% displa( and one for the #)*% displa(.

Option C. to proide displa( control b( one control panel "hilst the other proides a

standb(.Correct Ans"er is. one to control the t(pe of #3%* displa( and the other to select the source of the

information bein displa(ed.

#$planation. N%&.

Question Number. 10. What "ould (ou e$pect to see displa(ed on an #AD%

displa(?.Option A. Compass headin, selected headin and +O.

Option !. Course information, "eather radar, "a( point alert and bearin pointers.

Option C. 3liht director command bars, slip indicator, rate to altitude autoland.Correct Ans"er is. 3liht director command bars, slip indicator, rate to altitude autoland.

#$planation. N%&.

Question Number. 15. An #3%* AD% displa( "ill sho" alon "ith pitch and roll.

Option A. fliht director bars, autoland, compass rose, altitude.

Option !. decision heiht, autoland, rad alt , altitude.Option C. fliht director bars, autoland, altitude, rane to altitude, decision heiht.

Correct Ans"er is. decision heiht, autoland, rad alt , altitude.

#$planation. N%&.

Question Number. 19. %f the lideslope pointer is belo" the centre mar6 the aircraftis.

Option A. belo" the lideslope.

Option !. on the lideslope.

Option C. aboe the lideslope.Correct Ans"er is. aboe the lideslope.

#$planation. N%&.

Question Number. 1<. On an #3%* s(stem the "eather radar is displa(ed on.

Option A. the 3-C CD:.Option !. the #AD%.

Option C. the #)*%.

Correct Ans"er is. the #)*%.



#$planation. Aircraft %nstruments and %nterated *(stems #) allett ae 029.

Question Number. 1=. #AD% displa(s sho".Option A. pitch, roll and "a(points.

Option !. pitch and roll attitudes.

Option C. headin and "eather radar.Correct Ans"er is. pitch and roll attitudes.

#$planation. N%&.

Question Number. 1@. On an #)*% in "eather radar mode, a seere storm "ould be sho"n

as.Option A. orane areas "ith blac6 or (ello" surrounds.

Option !. red areas "ith blac6 surrounds

Option C. blue areas "ith "hite bac6round.

Correct Ans"er is. red areas "ith blac6 surrounds.#$planation. N%&.

Question Number. 1;. Durin fliht non fault conditionsB the #%CA* s(stem displa(s on the

lo"er CT.

Option A. fliht phase pae.Option !. secondar( enine parameters.

Option C. s(noptic displa(.

Correct Ans"er is. secondar( enine parameters.

#$planation. N%&.

Question Number. 2. adio altitude is displa(ed on an #3%* s(stem.Option A. on the #lectronic )ori>ontal *ituation %ndicator.

Option !. on the #lectronic Attitude Direction %ndicator.

Option C. on the -%.Correct Ans"er is. on the #lectronic Attitude Direction %ndicator.

#$planation. N%&.

Question Number. 1. An #3%* s(stem AD% displa(s pitch, roll.

Option A. autoland, altitude, compass rose and fliht director bars.

Option !. autoland, decision heiht, rane to altitude and fliht director bars and slip indicator.Option C. autoland, rad alt, decision heiht and slip indicator.

Correct Ans"er is. autoland, decision heiht, rane to altitude and fliht director bars and slip

indicator.#$planation. N%&.

Question Number. . An electronic fliht instrument displa( consists of.

Option A. -ode control panel, aster and *tro6e enerator displa(, microprocessor and Data

inputs.



Option !. ADC, Altimeter, +*% and A*%.

Option C. AD%, )*% and *(mbol enerator.

Correct Ans"er is. -ode control panel, aster and *tro6e enerator displa(, microprocessor and

Data inputs.#$planation. Automatic 3liht Control b( #) allett and *ha"n Co(le pae <@.

Question Number. 0. The #3%* s(stem consists of.

Option A. #)*%, -ode control panel, #AD%.

Option !. #AD%, #)*%, *(mbol enerators.Option C. -ode control anel, D-%, #)*%.

Correct Ans"er is. #AD%, #)*%, *(mbol enerators.

#$planation. N%&.

Question Number. 5. %&* indications on 3D8ND are sho"n in.

Option A. c(an.Option !. maenta.

Option C. reen.

Correct Ans"er is. maenta.#$planation. N%&.

Question Number. 9. A "eather radar imae can be displa(ed on the ND on all modes

e$cept.

Option A. arc.

Option !. na rose.Option C. plan.

Correct Ans"er is. plan.

#$planation. N%&.

Question Number. <. %n a t(pical commercial aircraft )ead :p 7uidance*(stem.

Option A. the t(pe of information sho"n on the attitude director indicator is displa(ed on a

transparent plate.Option !. all instrument information is displa(ed on the "indshield.

Option C. onl( emerenc( indications or "arnins are displa(ed to the pilot.

Correct Ans"er is. the t(pe of information sho"n on the attitude director indicator is displa(ed on a

transparent plate.#$planation. N%&.

Question Number. =. A modern #lectronic )ori>ontal *ituation %ndicator "ill displa( the

follo"inE.

Option A. Wa(points, %&* *teerin %nformation, Distance to o and -anetic )eadin.Option !. %&* *teerin %nformation, 3liht director information and 7lide *lope Deiation.

Option C. 7round speed, -anetic )eadin, Wa( points and &ocaliser.

Correct Ans"er is. Wa(points, %&* *teerin %nformation, Distance to o and -anetic )eadin.



#$planation. N%&.

Question Number. @. Coc6pit panels hae a matt colour finish. The purpose is.Option A. so that pilots feel more comfortable durin da(time.

Option !. so that the amount of lare is reduced to minimum.

Option C. so that dust and dirt are less eident on panels.Correct Ans"er is. so that the amount of lare is reduced to minimum.

#$planation. N%&.

Question Number. ;. A complete #3%* installation in an aircraft is made up of.

Option A. either of the aboe.Option !. riht captainB and left co/pilotB.

Option C. left captainB and riht co/pilotB.

Correct Ans"er is. either of the aboe.

#$planation. could be either, as helicopters are the other "a( round "hen compared to aeroplanes.

Question Number. 02. On a modern 'lass coc6pit' aircraft, enine information "ill be displa(edon.

Option A. 3-*.

Option !. #3%*.Option C. #CA-.

Correct Ans"er is. #CA-.

#$planation. N%&.

Question Number. 01. What does #3%* mean?.

Option A. #lectronic 3ire %ndication *inal.Option !. #lectronic 3liht %nstrument *(stem.

Option C. #lectronic 3liht %nformation *(stem.

Correct Ans"er is. #lectronic 3liht %nstrument *(stem.#$planation. N%&.

Question Number. 0. What does #%CA* mean?.

Option A. #lectronic indicator and control alertin s(stem.

Option !. #nine indicatin and Cre" alertin s(stem.

Option C. #lectronic indicator and cre" alertin s(stem.Correct Ans"er is. #nine indicatin and Cre" alertin s(stem.

#$planation. N%&.

Question Number. 00. What does #CA- mean?.

Option A. #nine Centralised Aircraft -anaement *(stem.Option !. #nine Centralised Aircraft -onitorin *(stem.

Option C. #lectronic Centralised Aircraft -onitorin *(stem.

Correct Ans"er is. #lectronic Centralised Aircraft -onitorin *(stem.



#$planation. N%&.

05.0". #u$ering S!stes.

Question Number. 1. Conert 211121 !ase to octal.

Option A. 9.Option !. 09.

Option C. 00.

Correct Ans"er is. 09.#$planation. The OCTA& code has @ diits, 2 / =. To conert binar( to octal diide the binar( number

into roups of three startin from the riht. 4ou'e ot to 6no" (our binar(, octal, he$ and bcd

conersionsF.

Question Number. . The binar( number 11212111 e$pressed as a decimal is.


Option C. 2=.

Correct Ans"er is. 19.#$planation. N%&.

Question Number. 0. The octal number 1221 e$pressed as a decimal is.

Option A. ;.

Option !. <9.

Option C. 910.Correct Ans"er is. 910.

#$planation. N%&.

Question Number. 5. What is 059 in binar(?.

Option A. 122111221.Option !. 121211221.

Option C. 112211221.


Question Number. 9. What is he$ 112 in decimal?.Option A. @.

Option !. =.

Option C. 0.Correct Ans"er is. =.

#$planation. N%&.

Question Number. <. Conert the binar( "ord 1122 to decimal.

Option A. 11.



Option !. 1<.

Option C. 1.

Correct Ans"er is. 1.

#$planation. N%&.

Question Number. =. %f a data messae is made up of 1s and 2s, it is.Option A. analoue.

Option !. binar(.

Option C. diital.Correct Ans"er is. diital.

#$planation. Diital is 1s and 2s, either binar( or re( code.

Question Number. @. Conert the binar( "ord 1112 to decimal.

Option A. 1.

Option !. 15.Option C. 19.


#$planation. N%&.

Question Number. ;. Conert the binar( number 112212 to decimal.Option A. @2.

Option !. 92.

Option C. 05.


Question Number. 12. Conert the he$adecimal number D into decimal.

Option A. 10.



#$planation. N%&.

Question Number. 11. Conert decimal 19 into binar(.


Option C. 1112.


Question Number. 1. Conert 55@ to he$.

Option A. !ase1<.

Option !. 0< !ase1<.



Option C. 5 !ase1<.

Correct Ans"er is. 5 !ase1<.

#$planation. N%&.

Question Number. 10. Conert decimal 19 into he$adecimal.

Option A. 7.Option !. #.

Option C. 3.


Question Number. 15. What is 059 in binar(?.

Option A. 122111221.

Option !. 112211221.


#$planation. N%&.

Question Number. 19. Conert 1D to binar(.

Option A. 11121.Option !. ;.

Option C. 121221.


#$planation. N%&.

Question Number. 1<. Conert C he$ to octal.Option A. 09.

Option !. 55.


#$planation. N%&.

Question Number. 1=. A he$adecimal is a number to base.

Option A. .

Option !. 1<.Option C. @.

Correct Ans"er is. 1<.

#$planation. N%&.

Question Number. 1@. 121 conerted to decimal is.Option A. 9.

Option !. 12.

Option C. 912.




#$planation. N%&.

Question Number. 1;. The binar( coded decimal number 12211222 e$pressed as a decimal

number is.

Option A. [email protected] !. ;@12.

Option C. 19.

Correct Ans"er is. ;@12.#$planation. N%&.

Question Number. 2. The decimal number = e$pressed as a binar( number is.

Option A. 121 !ase .

Option !. 111 !ase .

Option C. = !ase .Correct Ans"er is. 111 !ase .

#$planation. N%&.

Question Number. 1. Conert 211121 binar( to octal.


Option C. 00.


#$planation. N%&.

Question Number. . !inar( NumberE 112212 is.Option A. @2.

Option !. 92.


#$planation. N%&.

Question Number. 0. !inar( addition of 1121 G 121121 is.

Option A. 9@.

Option !. =2.Option C. <1.

Correct Ans"er is. 9@.

#$planation. N%&.

Question Number. 5. The binar( number 11212111 is e$pressed as a decimal is.Option A. 12=.

Option !. 19.

Option C. 90.




#$planation. N%&.

Question Number. 9. The octal number 1221 e$pressed as a decimal is.

Option A. =10.

Option !. <10.Option C. 910.


#$planation. N%&.

Question Number. <. What is 211122221 !ase in Octal?.Option A. 9 !ase @.

Option !. @1 !ase 12.

Option C. 051 !ase @.

Correct Ans"er is. 051 !ase @.#$planation. N%&.

Question Number. =. The binar( number 1212122211122121 !ase in he$adecimal

is.

Option A. !C !ase 1<.Option !. 3333 !ase 1<.

Option C. A@#9 !ase 1<.

Correct Ans"er is. A@#9 !ase 1<.

#$planation. N%&.

Question Number. @. 2211211222121221 "hen transferred to computer lanuae thisinformation can be a representation of.

Option A. binar(, octal or decimal numbers.

Option !. he$, octal and binar( numbers.Option C. he$, octal and decimal numbers.

Correct Ans"er is. he$, octal and decimal numbers.

#$planation. !inar( %* 'computer lanuae' not a representation. Therefore an( ans"er "ith 'binar('in it is "ron.

Question Number. ;. A computer messae 0!5 is.Option A. Octal.

Option !. binar(.

Option C. he$adecimal.Correct Ans"er is. he$adecimal.

#$planation. N%&.

Question Number. 02. What is 95 octal in he$adecimal?.

Option A. 3.



Option !. 53.

Option C. C.

Correct Ans"er is. C.

#$planation. N%&.

Question Number. 01. D in decimal is.Option A. 50.

Option !. 59.


#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 10.

Question Number. 0. @5 decimal in he$adecimal is.

Option A. 9f.

Option !. f5.Option C. 95.



Question Number. 00. 1< he$adecimal conerted to decimal is euialent to.Option A. 5@.

Option !. 0@.

Option C. .

Correct Ans"er is. .#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 10.

Question Number. 05. Decimal 12 conerted to binar( is.

Option A. 1111.



#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 1@.

Question Number. 09. What s(stems uses base 12?.

Option A. Octal.Option !. !inar(.

Option C. Decimal.

Correct Ans"er is. Decimal.#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 1@.

Question Number. 0<. What s(stems use base 1<?.

Option A. !CD.

Option !. Octal.



Option C. )e$adecimal.

Correct Ans"er is. )e$adecimal.


Question Number. 0=. !inar( coded decimal !CDB format has a minimum of.

Option A. lots of four.Option !. four.

Option C. 0 lots of four.

Correct Ans"er is. four.#$planation. N%&.

Question Number. 0@. What is the )e$adecimal number 3@< in !inar(?.

Option A. 111112222221.

Option !. 0;=5.


#$planation. Conert it to Decimal first 19 $ 9< G @ $ 1< G < $ 1B H 0;=5. *ince it is an een

number, it must be the ans"er "ith a >ero on the end.

Question Number. 0;. What is 1122221 / 121122?.Option A. 12221121 !ase .

Option !. 112111 !ase .

Option C. 112121 !ase .

Correct Ans"er is. 112121 !ase .#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 11;.

Question Number. 52. What is used for the po"er of 12?.

Option A. Diital.

Option !. Octal.Option C. Decimal.

Correct Ans"er is. Decimal.

#$planation. Decimal is a po"er of 12 countin s(stem.

Question Number. 51. What is 55 in he$adecimal?.

Option A. d.Option !. c.

Option C. 3.

Correct Ans"er is. c.#$planation. I 1<B G 1 I 1B H 55 c H 1B.

Question Number. 5. What is octal 00 in he$adecimal?.

Option A. 1b.

Option !. 11.



Option C. .

Correct Ans"er is. 1b.

#$planation. Octal 00 H 0 I @B G 0 I 1B H = decimal. = H 1 I 1<B G 11 I 1B H 1b b H 11B.

Question Number. 50. An octal format he$adecimal number 03 "ritten as binar( "ould

be.Option A. 112 111.

Option !. 111 111.

Option C. 121 211.Correct Ans"er is. 111 111.

#$planation. N%&.

Question Number. 55. What is f@< he$ "hen conerted to binar(?.

Option A. 1222212222112.

Option !. 111112222112.Option C. 122222222222.


#$planation. N%&.

Question Number. 59. %n a computer, the address 0!@ is.Option A. he$adecimal.

Option !. decimal.

Option C. octal.

Correct Ans"er is. he$adecimal.#$planation. N%&.

Question Number. 5<. What is a 7ra(s conerter?.

Option A. Analoue to Analoue.

Option !. Analoue to Diital.Option C. Diital to Analoue.

Correct Ans"er is. Analoue to Diital.

#$planation. N%&.

Question Number. 5=. What is the he$adecimal number A#9 in octal form?.


Option C. 9059.


Question Number. 5@. )e$adecimal 9C is "hat in binar(?.

Option A. 1211111.

Option !. 1211122.



Option C. 1112122.


#$planation. N%&.

Question Number. 5;. !inar( 11221121 conerted to octal is.

Option A. 1#.Option !. 019.

Option C. 29.


Question Number. 92. What is the binar( notation for ;?.

Option A. 2221 2112.

Option !. 2212 1221.

Option C. 2221 1121.Correct Ans"er is. 2221 1121.

#$planation. Despite the deliberate ap bet"een the bloc6s of 5 diits, this is not a !CD uestion.

Question Number. 91. 12121 G 11221 H.

Option A. 5<.Option !. 5<@.

Option C. 5<12.

Correct Ans"er is. 5<12.

#$planation. 12121 G 11221 H 121112 H 5<12.

05.0%. Data &on'ersion.

Question Number. 1. %f a sinal has uantit( in olts and ph(sical position it is.

Option A. diital.Option !. s(nchronous.

Option C. analoue.

Correct Ans"er is. analoue.#$planation. This is the definition of an analoue sinal.

Question Number. . Within a computer controlled fliht s(stem, position feedbac6 isconerted from.

Option A. position feedbac6 to rate feedbac6.

Option !. analoue to diital.Option C. diital to analoue.

Correct Ans"er is. analoue to diital.

#$planation. N%&.

Question Number. 0. What is serial to parallel and ice/ersa called?.



Option A. *"itchin.

Option !. -ultiple$8Demultiple$.

Option C. #ncoder8Decoder.

Correct Ans"er is. -ultiple$8Demultiple$.#$planation. N%&.

Question Number. 5. A th(ristor is a deice "hich has.

Option A. a positie temperature coefficient.

Option !. a neatie temperature coefficient.Option C. a temperature coefficient of >ero.

Correct Ans"er is. a neatie temperature coefficient.

#$planation. N%&.

Question Number. 9. h(sical ariables in uantitatie forms, such as oltae or anular

rotation of a shaft are.Option A. diital.

Option !. analoue.

Option C. binar(.Correct Ans"er is. analoue.

#$planation. N%&.

Question Number. <. A D to A conerter is reuired to produce an output rane of 2 to 12+.

This can be achieed b(.

Option A. a non inertin op amp connected in series "ith output.Option !. an inertin op amp connected in series "ith output.

Option C. a differentiator "ith a 122 Jilohm feedbac6 resistor.

Correct Ans"er is. an inertin op amp connected in series "ith output.#$planation. N%&.

Question Number. =. A D to A conerter "ould use a precision amplifier to.

Option A. compensate for the ariation of the feedbac6 resistor "ith temperature.

Option !. ensure that the output oltaes remain accurate.Option C. ensure that the input oltae remains accurate.

Correct Ans"er is. ensure that the output oltaes remain accurate.

#$planation. N%&.

Question Number. @. A ien transducer proides a oltae "hich corresponds to true headin.

This oltae can beconerted to 'bits' b( usin a.Option A. analoue to diital conerter.

Option !. diital to analoue conerter.

Option C. commutator.Correct Ans"er is. analoue to diital conerter.

#$planation. N%&.



Question Number. ;. An A to D conerter uses successie appro$imation to.

Option A. increase resolution.

Option !. increase accurac(.Option C. increase speed.

Correct Ans"er is. increase speed.

#$planation. N%&.

Question Number. 12. An / D to A conerter uses.Option A. t"o alues of resistors "hose precision is not important.

Option !. t"o alues of precision resistors.

Option C. resistors "hose alues are loarithmic.Correct Ans"er is. t"o alues of resistors "hose precision is not important.

#$planation. N%&.

Question Number. 11. The function of a commutator is to.

Option A. conert from analoue to binar( form.

Option !. proide continuous aailabilit( of all parameters connected to the s(stem.Option C. proide a samplin in seuence of a number of parameters.

Correct Ans"er is. proide a samplin in seuence of a number of parameters.

#$planation. N%&.

Question Number. 1. An encoder usin 7re( code.

Option A. chanes analoue to binar(.Option !. chanes diital to analoue.

Option C. chanes analoue to diital.

Correct Ans"er is. chanes analoue to diital.#$planation. N%&.

Question Number. 10. An analoue to diital conerter is as accurate as.

Option A. the freuenc(.

Option !. the samplin rate.Option C. the amplitude.

Correct Ans"er is. the samplin rate.

#$planation. N%&.

Question Number. 15. A diital to analoue conerter that reuires the output to rane bet"een

2 and /12 "ould hae.Option A. a non/inertin amplifier in line "ith the output "ith a resistor to round.

Option !. an inertin amplifier in series "ith the output line.

Option C. a non/inertin amplifier in parallel "ith the output line.Correct Ans"er is. an inertin amplifier in series "ith the output line.

#$planation. N%&.



Question Number. 19. %n an analoue to diital conerter, the input oltae.

Option A. is s"itched b( the diital input.

Option !. is intermittent.Option C. sta(s on constantl(.

Correct Ans"er is. sta(s on constantl(.

#$planation. N%&.

Question Number. 1<. An / Conerter has alues or resistance.Option A. "hose relatie precision are accurate.

Option !. "hose precision are not accurate.

Option C. "hose precision are accurate.Correct Ans"er is. "hose precision are not accurate.

#$planation. N%&.

Question Number. 1=. What does 1 represent in an analoue s(stem?.

Option A. )ih freuenc(

Option !. *"itches closed, manetisedOption C. *"itches open, unmanetised

Correct Ans"er is. *"itches closed, manetised

#$planation. N%&.

Question Number. 1@. Audio sounds recorded diitall(.

Option A. are superior ualit( and raeter band"idth.Option !. are narro" band"idth.

Option C. are not as accurate due to clippin and input errors.

Correct Ans"er is. are superior ualit( and raeter band"idth.#$planation. N%&.

Question Number. 1;. An analoue to diital conerter "here it counts up to binar( state eual

to the analoue input and then bac6 do"n "hen this is reached is a.

Option A. a ramp t(pe conerter.Option !. successie appro$imation counter.

Option C. flash t(pe conerter.

Correct Ans"er is. a ramp t(pe conerter.

#$planation. Diital 3undamentals T & 3lo(d pae =;2.

Question Number. 2. Transistors are used in a current triered D to A deice to.Option A. s"itch off the inputs.

Option !. s"itch on the input.

Option C. chane the state of the inputs.Correct Ans"er is. chane the state of the inputs.

#$planation. N%&.



Question Number. 1. Op amps enerall( used in ADCs and DACs are normall(.

Option A. hih input impedance, hih output impedance.

Option !. hih input impedance, lo" output impedance.Option C. lo" input impedance , ho" output impedance.

Correct Ans"er is. hih input impedance, lo" output impedance.

#$planation. N%&.

Question Number. . Analoue loic 1 is.Option A. closed s"itch, &oic QH2.

Option !. closed circuit, &oic QH1.

Option C. open circuit.Correct Ans"er is. closed circuit, &oic QH1.

#$planation. N%&.

Question Number. 0. An ADC uses successie appro$imation to.

Option A. increase speed.

Option !. increase accurac(.Option C. increase resolution.

Correct Ans"er is. increase speed.

#$planation. N%&.

Question Number. 5. A DAC uses a precision amplifier to.

Option A. ensure the output oltaes remain accurate.Option !. compensates for the ariation of the feedbac6 resistor due to temperature.

Option C. ensure the input remains accurate.

Correct Ans"er is. ensure the output oltaes remain accurate.#$planation. N%&.

Question Number. 9. A precision op/amp is used in a DAC to.

Option A. compensate for temperature ariation.

Option !. ie output at reuired leel.Option C. ma6e output bet"een 2 / 9+.

Correct Ans"er is. ie output at reuired leel.

#$planation. N%&.

Question Number. <. %n an / ladder conerter the alues of resistors.

Option A. do not need to be of precise alues.Option !. onl( the first resistor need to be precise.

Option C. are precise.

Correct Ans"er is. do not need to be of precise alues.#$planation. N%&.



Question Number. =. What is the uic6est method of analoue to diital

conersion?.

Option A. +oltae to freuenc(.

Option !. 3lash conerter.Option C. *inle ramp method.

Correct Ans"er is. 3lash conerter.

#$planation. Diital 3undamentals b( Thomas & 3lo(d.

Question Number. @. A chare balancin ADC uses.Option A. successie appro$imation loic circuit to control the output.

Option !. a closed loop s(stem to compare the analoue input to ie the reuired diital

output.Option C. a closed loop s(stem to chec6 the analoue input "ith the input sample.

Correct Ans"er is. a closed loop s(stem to compare the analoue input to ie the reuired diital

output.

#$planation. N%&.

Question Number. ;. *ample and hold is a techniue used in.Option A. D to A conersion.

Option !. -oin coil instruments.

Option C. A to D conersion.Correct Ans"er is. A to D conersion.

#$planation. N%&.

Question Number. 02. An analoue to diital conerter ADCB reuires the

follo"in.

Option A. a reference oltae, an input ate, an internal counter, a comparitor.Option !. a reference oltae, an input ate, a comparator.

Option C. a reference oltae, an input ate, an internal counter.

Correct Ans"er is. a reference oltae, an input ate, a comparator.#$planation. N%&.

Question Number. 01. What is 'Throuhput ate' for the A8D conerter?.

Option A. Number of complete diital "ords encoded in a specified unit of time.

Option !. None of the aboe.

Option C. *peed of ariable resistor "hich senses the analoue sinal.Correct Ans"er is. Number of complete diital "ords encoded in a specified unit of time.

#$planation. N%&.

Question Number. 0. What is the esolution of A8D and D8A conerters?.

Option A. esolution of the %nstrument "hich displa(s the alues.Option !. Number of discrete alues that can be represented b( the diital "ord.

Option C. ate at "hich data is conerted.

Correct Ans"er is. Number of discrete alues that can be represented b( the diital "ord.



#$planation. N%&.

Question Number. 00. Diital sinals can be represented.Option A. onl( as a binar( alue.

Option !. b( a series of inteers.

Option C. b( real numbers.Correct Ans"er is. b( a series of inteers.

#$planation. N%&.

Question Number. 05. When testin #7T probe.

Option A. it must be soa6ed and ambient temperature allo"ance ta6en into consideration.Option !. not necessaril( soa6ed but ambient temperature must be ta6en into consideration.

Option C. if its not soa6ed, a minimum temperature of 2 derees C ta6en as OAT.

Correct Ans"er is. it must be soa6ed and ambient temperature allo"ance ta6en into

consideration.#$planation. N%&.

Question Number. 09. A Diital to Analoue Conerter has a resolution of 2.0 +olts. What "ill

be the analoue output "hen the diital input is 12112.

Option A. <.< +olts -*.Option !. /<.< +olts DC.70<.

Option C. <.< +olts DC.

Correct Ans"er is. <.< +olts DC.

#$planation. N%&.

Question Number. 0<. A number represented as a ph(sical uantit(, e.. oltae or speed ofrotation is.

Option A. diital.

Option !. ma$imum alue.Option C. analoue.

Correct Ans"er is. analoue.

#$planation. N%&.

05.0(. Data )uses.

Question Number. 1. %n arinc <;, &:s are prorammed to transmit.

Option A. one at a time.

Option !. one transmits and one reciees.Option C. all at the same time.

Correct Ans"er is. one transmits and one reciees.

#$planation. N%&.

Question Number. . %n aircraft use, fibre optic cables should compl( "ith.



Option A. A%NC <; standard.

Option !. A%ND 5; standard.

Option C. A%ND <0< standard.

Correct Ans"er is. A%ND <0< standard.#$planation. N%&.

Question Number. 0. A%NC <; databus is.

Option A. one cable, bi/directional.

Option !. t"o cables, uni/directional.Option C. t"o cables, bi directional.

Correct Ans"er is. t"o cables, bi directional.

#$planation. N%&.

Question Number. 5. An A%NC 9=0 data bus is used.

Option A. to input into a Diital 3liht Data ecorder.Option !. to suppl( diital inputs from a *(mbol 7enerator to the #AD% and #)*%.

Option C. to input into a 3D Diital Acuisition :nit.

Correct Ans"er is. to input into a Diital 3liht Data ecorder.#$planation. The 3D can hae different inputs dependin upon the ae of the s(stem, modern

s(stems use A%NC 9=0. The inputs to 3D DA: are onl( analoue, discreet and A%NC 5;. The

interface bet"een *7:s, #AD% and #)*% is onl( A%NC 5;.

Question Number. 9. An A%NC 5; bus uses.

Option A. a t"isted shielded pair of "ires.Option !. t"o bi/directional t"in sheathed and earthed "ires.

Option C. a sinle t"in "ire cable for each transmitter.

Correct Ans"er is. a t"isted shielded pair of "ires.#$planation. allett / Aircraft %nstruments ae 19=.

Question Number. <. The A%NC 5; data bus "ord s(stems use.

Option A. binar( coded decimal.

Option !. decimal numberin.Option C. he$adecimal numberin.

Correct Ans"er is. binar( coded decimal.

#$planation. allett / Aircraft %nstruments ae 19<.

Question Number. =. A%NC 9=0 is related to "hat s(stem?.

Option A. Weather adar.Option !. 3D.

Option C. %N*.

Correct Ans"er is. 3D.#$planation. !oein -aintenance Trainin notes for !=9=.



Question Number. @. A%NC <; current mode couplers are.

Option A. capacitie.

Option !. resistie.

Option C. inductie.Correct Ans"er is. inductie.

#$planation. N%&.

Question Number. ;. A%NC <; databus is.

Option A. one bus, bi/directional data flo".Option !. t"o buses, unidirectional.

Option C. t"o buses, bi/directional data flo".

Correct Ans"er is. one bus, bi/directional data flo".#$planation. N%&.

Question Number. 12. Normal transmission order of A%NC <; &:s in periodic mode is inorder of.

Option A. shortest to larest T%.

Option !. shortest to larest T7.Option C. po"er up.

Correct Ans"er is. po"er up.

#$planation. !=== -- 0/;1/22 p 51. *hortest to lonest terminal ap is for aperiodic mode onl(.

Question Number. 11. %n an A%NC 5; "ordstrin, bits 1 to @ represent the.

Option A. destination &: address.Option !. monitored parameter.

Option C. messae.

Correct Ans"er is. monitored parameter.#$planation. Aircraft %nstruments and %nterated *(stems allett ae 19; and A%NCs tutorial.

Question Number. 1. A%NC <; terminal transmit interal is.

Option A. common to each terminal.

Option !. uniue to each terminal.Option C. "hen all terminals are uiet.

Correct Ans"er is. common to each terminal.

#$planation. The A%NC <; T% is common to all &:s.

Question Number. 10. -%&/*TD/1900 is a data bus for.

Option A. %nertial eference *(stem.Option !. 3liht Data ecorders.

Option C. Diital %nformation Transfer *(stem.

Correct Ans"er is. Diital %nformation Transfer *(stem.#$planation. N%&.



Question Number. 15. A%NC <; periodic mode is used for.

Option A. transferrin data onl( on eents important to aircraft operation.

Option !. database loads.

Option C. normal operation.Correct Ans"er is. normal operation.

#$planation. N%&.

Question Number. 19. )o" is data coupled to an A%NC <; data bus?.

Option A. !( a resistie pic6up.Option !. !( an inductie pic6up.

Option C. !( a capacitie pic6up.

Correct Ans"er is. !( an inductie pic6up.#$planation. N%&.

Question Number. 1<. )o" does -%&/*TD/1900 put data onto the databus?.Option A. Throuh the bus controller.

Option !. 1 remote terminalB.

Option C. **%3: sub/s(stem interface unitB.Correct Ans"er is. Throuh the bus controller.

#$planation. Throuh the bus controller.

Question Number. 1=. The parit( bit in diital information is used.

Option A. to chec6 the alidit( of data information.

Option !. for !%T# prorams.Option C. to chec6 the status of the s(stem.

Correct Ans"er is. to chec6 the alidit( of data information.

#$planation. N%&.

Question Number. 1@. A%NC 5; *D% "ord format is at bits.Option A. 0.

Option !. 1/@.

Option C. ;/12.Correct Ans"er is. ;/12.

#$planation. *D% H *ource Destination %dent.

Question Number. 1;. What is the parit( bit for on an A%NC 5; bus?.

Option A. To act as a terminal ap in an emerenc(.

Option !. To dela( the sinal.Option C. To chec6 for corruption durin transmission of a "ord.

Correct Ans"er is. To chec6 for corruption durin transmission of a "ord.

#$planation. N%&.

Question Number. 2. An A%NC 5; "ord label format is.



Option A. he$adecimal.

Option !. octal.

Option C. binar(.

Correct Ans"er is. octal.#$planation. N%&.

Question Number. 1. )o" man( &:s can be connected to an A%NC 5; data bus?.

Option A. 12.

Option !. <2.Option C. 2.


#$planation. N%&.

Question Number. . A%NC <; terminal transmit interal is.

Option A. common to each terminal.Option !. is "hen all transmissions are uiet.

Option C. uniue to each terminal.

Correct Ans"er is. common to each terminal.#$planation. N%&.

Question Number. 0. An A%NC 5; bus uses.

Option A. a t"isted shielded pair of "ires.

Option !. a sinle t"in cable for each transmitter.

Option C. t"o bi/directional t"in, sheathed and earthed "ires.Correct Ans"er is. a t"isted shielded pair of "ires.

#$planation. N%&.

Question Number. 5. A%NC 5; data bus s(stems uses.

Option A. he$adecimal numberin.Option !. binar( coded decimal.

Option C. decimal numberin.

Correct Ans"er is. binar( coded decimal.#$planation. N%&.

Question Number. 9. An A%NC 5; !inar( Coded Decimal "ord occupies "ord bits.

Option A. 1/@.

Option !. 11/;.Option C. 11/@.

Correct Ans"er is. 11/;.

#$planation. T"o ersions of A%NC 5;. !CD uses 11 / ;, !inar( uses 11 / @.

Question Number. <. An A%NC 5; s(stem uses a.



Option A. 2 bit "ord oer a bi/directional bus.

Option !. 0 bit "ord oer a t"isted pair of "ires.

Option C. 1< bit "ord oer a t"isted pair of "ires.

Correct Ans"er is. 0 bit "ord oer a t"isted pair of "ires.#$planation. N%&.

Question Number. =. An A%NC <; characteristic is.

Option A. all &:s can transmit and receie at the same time.

Option !. data can transmit in both directions do"n the data bus.Option C. all &:s can transmit at the same time.

Correct Ans"er is. data can transmit in both directions do"n the data bus.

#$planation. N%&.

Question Number. @. What limits the number of A%NC 5; receiers on a bus?.

Option A. The speed and si>e.Option !. The "eiht.

Option C. The parallel input impedance.

Correct Ans"er is. The parallel input impedance.#$planation. N%&.

Question Number. ;. Data is transferred on the -%&/*TD/1990! b(.

Option A. non return to >ero.

Option !. -anchester bi/phase.

Option C. bi/polar return to >ero.Correct Ans"er is. -anchester bi/phase.

#$planation. N%&.

Question Number. 02. )o" are enine indications sent to the 3D?.

Option A. *ource isolated.Option !. +ia A%NC <;.

Option C. +ia A%NC 9=0.

Correct Ans"er is. +ia A%NC 9=0.#$planation. N%&.

Question Number. 01. What s(stem uses base @?.Option A. A%NC 5;, in data"ord labels onl(.

Option !. A%NC 9=0.

Option C. A%NC <;.Correct Ans"er is. A%NC 5;, in data"ord labels onl(.

#$planation. N%&.

Question Number. 0. On an A%NC <; data bus, the ma$imum amount of current/mode

couplers per data bus is.



Option A. 5<.

Option !. 12.

Option C. <5.

Correct Ans"er is. 12.#$planation. 12 &:s ma$imum but the !=== uses 5<B.

Question Number. 00. To connect an &: to the data bus.

Option A. a terminal controller and interface module onl( is reuired.

Option !. current mode coupler, terminal controller and a production brea6 is reuired.Option C. a current mode coupler, serial interface module and terminal controller is reuired.

Correct Ans"er is. a current mode coupler, serial interface module and terminal controller is

reuired.#$planation. N%&.

Question Number. 05. A current/mode coupler contains an #/Core assembl(. The purpose of the#/Core is to proide effectie screenin of the sinal throuh the.

Option A. current/mode coupler.

Option !. couple the sinal to the data bus.Option C. enable eas( access for monitorin of the sinal.

Correct Ans"er is. couple the sinal to the data bus.

#$planation. N%&.

Question Number. 09. The A%NC 5; lo" rate of transmission is.

Option A. 122 6bits8second "ith hih of 1/15 -bits8second.Option !. 1/15 Jbits8second "ith hih of 122 6!its8second.

Option C. 1/15 -bits8second "ith hih of 122 -bits8secon.

Correct Ans"er is. 1/15 Jbits8second "ith hih of 122 6!its8second.#$planation. N%&.

Question Number. 0<. An A%NC <; bus cable is a t"isted pair of "ires "ith.

Option A. a 102 ohm resistor at one end.

Option !. a 102 ohm resistor at both ends.Option C. a 02 ohm resistor at one end.

Correct Ans"er is. a 102 ohm resistor at both ends.

#$planation. N%&.

Question Number. 0=. An A%NC <; stub cable.

Option A. connects sinle directional data bet"een the &: and current mode coupler.Option !. connects bi/directional data bet"een the &: and current mode coupler.

Option C. connects bi/directional data bet"een t"o &:s.

Correct Ans"er is. connects bi/directional data bet"een the &: and current mode coupler.#$planation. N%&.



Question Number. 0@. Care must be ta6en "hen installin A%NC <; cables into bus panels,

damae to cables can cause.

Option A. corrosion of the conductor.

Option !. arcin of hih oltae sinals.Option C. standin "aes.

Correct Ans"er is. corrosion of the conductor.

#$planation. N%&.

Question Number. 0;. An aircraft databus s(stem.Option A. can use both A%NC <; and A%NC 5; as the( are compatible.

Option !. can use both s(stems, A%NC <; and A%NC 5; ia s(stem card files and sinal

ate"a(s.Option C. cannot use both A%NC <; and A%NC 5; data buses.

Correct Ans"er is. can use both s(stems, A%NC <; and A%NC 5; ia s(stem card files and

sinal ate"a(s.

#$planation. N%&.

Question Number. 52. A%NC <; is used for.Option A. emerenc( onl(.

Option !. a bac6up to A%NC 5;.

Option C. normal fliht.Correct Ans"er is. normal fliht.

#$planation. N%&.

Question Number. 51. Once an A%NC <; &: has transmitted a messae it "ill "ait ho"

lon before transmittin aain?.

Option A. :ntil the end of the s(nchroni>ation ap.Option !. :ntil the start of the terminal ap.

Option C. :ntil the end of the transmit interal

Correct Ans"er is. :ntil the end of the transmit interal.#$planation. N%&.

Question Number. 5. )o" is the "ord label 2< "ritten in A%NC 5;?.

Option A. Decimal 2<.

Option !. Octal 21122221.

Option C. !inar( 11222112.Correct Ans"er is. Octal 21122221.

#$planation. &abel is Octal / -*! to riht / so (es, it is bac6"ards.

Question Number. 50. What is A%NC 9<1 used for?.

Option A. 3l( b( Wire s(stems.Option !. 3liht Data ecorder s(stems.

Option C. %nertial Naiation *(stems.

Correct Ans"er is. %nertial Naiation *(stems.



#$planation. N%&.

Question Number. 55. An A%NC data "ord is bits 11/;, if bits 11/1@ are patched "hich of thefollo"in "ould be the &*! bit?.

Option A. 1;.

Option !. ;.Option C. 1.

Correct Ans"er is. 1;.

#$planation. N%&.

Question Number. 59. 3ibreoptic databus lin6s are.Option A. simple$.

Option !. bi/directional.

Option C. one "a( data buses.

Correct Ans"er is. bi/directional.#$planation. N%&.

Question Number. 5<. A%NC <; is.

Option A. half duple$.

Option !. full duple$.Option C. simple$.

Correct Ans"er is. half duple$.

#$planation. N%&.

Question Number. 5=. A sinal in an A%NC <; s(stem uses.

Option A. a pair of "ires per transmitter unit.Option !. a sinle "ire.

Option C. a t"isted pair of "ires or fibre optics.

Correct Ans"er is. a t"isted pair of "ires or fibre optics.#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 15@.

httpE88""".condoren.com A%NC 5; tutorial

Question Number. 5@. An in/series A%NC 5; s(stem transmits usin.

Option A. encoder.

Option !. time diision multiple$in.Option C. "ae diision multiple$in.

Correct Ans"er is. time diision multiple$in.

#$planation. N%&.

Question Number. 5;. A terminal controller.Option A. is repetitie transmittin.

Option !. "ill transmit onl( once durin each transmit interal.

Option C. transmits onl( "hen addressed.



Correct Ans"er is. "ill transmit onl( once durin each transmit.

#$planation. N%&.

Question Number. 92. The number of &:s "hich transmit8receie on A%NC/5; is

dependent upon.

Option A. speed of transmission si>e of aircraft s(stems.Option !. parallel input impedance.

Option C. si>e of *.D.%.

Correct Ans"er is. parallel input impedance.#$planation. N%&.

Question Number. 91. One of the A%NC 5; formats is.

Option A. !CD.

Option !. octal.

Option C. he$adecimal.Correct Ans"er is. !CD.

#$planation. httpE88""".condoren.com A%NC 5; tutorial

Question Number. 9. A roup of bits transmitted at the same time is.

Option A. parallel data.Option !. a cloc6 sinal.

Option C. serial data.

Correct Ans"er is. parallel data.

#$planation. N%&.

Question Number. 90. The A%NC 5; s(stem uses "hich of the follo"in s(stem to transferdata?.

Option A. Non return to >ero.

Option !. )arard bi phase.Option C. !i/directional return to >ero.

Correct Ans"er is. !i/directional return to >ero.

#$planation. httpE88""".condoren.com A%NC 5; tutorial

Question Number. 95. Which of the follo"in A%NCs is bidirectional?.

Option A. <;.Option !. 5;.

Option C. 9=0.

Correct Ans"er is. <;.#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 15@.

httpE88""".condoren.com A%NC 5; tutorial

Question Number. 99. Data is transferred on the -%&/*TD/1990! b( usin.

Option A. non return to >ero.



Option !. -anchester bi/phase.

Option C. bipolar return to >ero.

Correct Ans"er is. -anchester bi/phase.

#$planation. httpE88""".condoren.com -%&/*TD/1990 tutorial

Question Number. 9<. The eneral arranement of A%NC <; includes.Option A. databus cable, current mode coupler, stub cable.

Option !. current mode coupler, databus cable onl(.

Option C. databus cable, stub cable, oltae mode coupler.Correct Ans"er is. databus cable, current mode coupler, stub cable.

#$planation. N%&.

Question Number. 9=. A%NC <; Databus cables are terminated usin.

Option A. 122 ohms resistor.

Option !. 102 ohms resistor.Option C. 9 ohms resistor.

Correct Ans"er is. 102 ohms resistor.

#$planation. N%&.

Question Number. 9@. %n A%NC 5; data field is bits 11 to @. %f the bits 11 to 1@ had pad bits,the &.*.!. Of the data "ould be.

Option A. bit 11.

Option !. bit @.

Option C. bit 1;.Correct Ans"er is. bit 1;.

#$planation. N%&.

Question Number. 9;. The !CD data field of A%NC 5; is contained "ithin bits.

Option A. 11/;.Option !. 11/@.

Option C. 1/@.

Correct Ans"er is. 11/;.#$planation. !inar( Word is 11 / @. !CD Word is 11 / ;.

Question Number. <2. A%NC <; is transmitted usin.Option A. sinle "ire for each transmitter.

Option !. fibre optics or t"isted pair of "ires.

Option C. *W7 @ "ire.Correct Ans"er is. fibre optics or t"isted pair of "ires.

#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 15@.

Question Number. <1. A simple$ s(stem has.

Option A. 1 transmitter and multiple receiers.



Option !. 1 bus controller and 1 remote terminal.

Option C. 1 bus controller and multiple receiers.

Correct Ans"er is. 1 transmitter and multiple receiers.

#$planation. N%&.

Question Number. <. To create a bi/directional communications lin6 "ithin an A%NC 5;s(stem.

Option A. four databuses are reuired.

Option !. onl( one databus is reuired.Option C. t"o databuses are reuired.

Correct Ans"er is. t"o databuses are reuired.

#$planation. N%&.

Question Number. <0. Wh( does an A%NC databus s(stem send data to &:s in

series?.Option A. *aes "eiht.

Option !. -ore information can be sent.

Option C. Ta6es less time.Correct Ans"er is. *aes "eiht.

#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 15<.

Question Number. <5. Can an &: transmit and receie on more than one <;

bus?.

Option A. 4es.Option !. Onl( if paralleled.

Option C. No.

Correct Ans"er is. 4es.#$planation. N%&.

Question Number. <9. A%NC <; &:s transmit.

Option A. "hen addressed.

Option !. "hen sinal ap is sensed.Option C. "hen terminal ap is sensed.

Correct Ans"er is. "hen terminal ap is sensed.

#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 15;.

Question Number. <<. An A%NC 5; !CD "ord occupies bits 11/;, if 11/19 are filled "ith

padders then the &*! of the "ord "ill be.Option A. 11.

Option !. 1<.

Option C. ;.Correct Ans"er is. 1<.

#$planation. Aircraft #lectricit( and #lectronics, #ismin ae 15=.



Question Number. <=. A simple$ s(stem has.

Option A. one transmitter, man( receiers.

Option !. a bus controller and separate controller.Option C. one transmitter, one receier.

Correct Ans"er is. one transmitter, man( receiers.

#$planation. N%&.

Question Number. <@. %n an Arinc 5; Word label/representin headin is 02, this isrepresented in bits 1/ @ as.

Option A. 21211221.

Option !. 22221211.Option C. 21121222.


#$planation. Octal 02 conerted to binar(, and reersed.

Question Number. <;. %n A%NC <; aperiodic mode, &:s transmit in order of.

Option A. lonest terminal ap to shortest terminal ap.Option !. po"er up.

Option C. shortest terminal ap to lonest terminal ap.

Correct Ans"er is. shortest terminal ap to lonest terminal ap.#$planation. N%&.

Question Number. =2. A%NC <;, aperiodic mode is used.Option A. for landin and approach operation.

Option !. for normal operation.

Option C. for database loads.Correct Ans"er is. for database loads.

#$planation. !=== -- 0/;1/22 p 51. eriodic mode is for normal operation. Aperiodic mode is

for non/normal operation and lare information transfer such as database loads and operatin soft"areloads.

Question Number. =1. )o" is A%NC 5; bi/directional data transfer achieed?.

Option A. +ia a current mode coupler.

Option !. :sin t"o data buses.

Option C. +ia a t"isted pair of shielded cables.Correct Ans"er is. :sin t"o data buses.

#$planation. N%&.

Question Number. =. The data format use to transmit sinal to fliht data

recorder.Option A. )arard bi/phase 1 bit.

Option !. !i/olar K 1 bit.

Option C. -anchester bi/phase 1 bit.



Correct Ans"er is. )arard bi/phase 1 bit.

#$planation. N%&.

Question Number. =0. The output oltae of A%NC 5; sinal is.

Option A. G9.

Option !. G12 to /12. )=0.Option C. /9.

Correct Ans"er is. G12 to /12. )=0.

#$planation. N%&.

Question Number. =5. An A%NC <; label "ord is.Option A. 12 bits.

Option !. 1 bits.

Option C. @ bits.

Correct Ans"er is. 1 bits.#$planation. 1/bit label field, 5/bit label e$tension, sinle parit(, 0/bit time hi/lo s(nch pulse. 2 bit

in total.

Question Number. =9. The T8 of A%NC <; is.

Option A. #ncoder 8 decoder.Option !. -ultiple$ 8 demultiple$.

Option C. s"itchin.

Correct Ans"er is. -ultiple$ 8 demultiple$.

#$planation. N%&.

Question Number. =<. Terminal ap in A%NC <; is.Option A. al"a(s the same period.

Option !. fle$ible.

Option C. can be chaned b( adLustin the r$8t$ soft"are.Correct Ans"er is. can be chaned b( adLustin the r$8t$ soft"are.

#$planation. Aircraft #lectricit( and #lectronics, #ismin 9th #d, p15;.

Question Number. ==. )o" does A%NC <; bus transmit and receie

information?.

Option A. *oc6ets and pins.Option !. %nductie couplin.

Option C. Optical couplin.

Correct Ans"er is. %nductie couplin.#$planation. N%&.

Question Number. =@. What is A%NC 9<1 used for?.

Option A. To specif( &: pin/outs.

Option !. To specif( adio Comms data bus.



Option C. To specif( 3liht Data ecorder data bus.

Correct Ans"er is. To specif( adio Comms data bus.

#$planation. N%&.

Question Number. =;. What is the purpose of the parit( bit on an A%NC 5;

bus?.Option A. To indicate if the data is analoue.

Option !. To indicate that the data is diital.

Option C. To indicate to the receier that the data is alid.Correct Ans"er is. To indicate to the receier that the data is alid.

#$planation. N%&.

Question Number. @2. A%NC 5; is.

Option A. *inle *ource -ultiple *in6 *(stem.

Option !. -ultiple *ource -ultiple *in6 s(stem.Option C. *inle *ource *inle *in6 s(stem.

Correct Ans"er is. *inle *ource -ultiple *in6 *(stem.

#$planation. N%&.

Question Number. @1. What is the purpose of intermediate production brea6s in A%NC 5; or<; Data cables?.

Option A. Cables are onl( manufactured 52 feet lon.

Option !. To allo" maintenance personnel to diide the riht and left s(stem buses into t"o parts

for eas( remoal and installation.Option C. To allo" connection of ne" cables to the e$istin ones in case of a modification.

Correct Ans"er is. To allo" maintenance personnel to diide the riht and left s(stem buses into

t"o parts for eas( remoal and installation.#$planation. N%&.

Question Number. @. Where is the parit( bit installed in a data "ord?.

Option A. 3ront.

Option !. #nd -*!.Option C. -iddle.

Correct Ans"er is. #nd -*!.

#$planation. N%&.

Question Number. @0. K bi/polar modulation consists of bits "hich are one of MMMMMMMMMM

states?.Option A. #iht.

Option !. T"o.

Option C. Three.Correct Ans"er is. Three.

#$planation. N%&.



Question Number. @5. %n the A%NC 5; diital information transfer s(stem, data ma( trael

inE.

Option A. both directions on the same bus simultaneousl(.Option !. one direction onl(.

Option C. both directions on the same bus seuentiall( b( time multiple$in.

Correct Ans"er is. one direction onl(.#$planation. N%&.

Question Number. @9. An A%NC <; data "ord.

Option A. includes an @ bit label and a 1< bit data field.

Option !. has onl( 2 bits.Option C. comprises up to 9< data bits.

Correct Ans"er is. has onl( 2 bits.

#$planation. N%&.

Question Number. @<. %n an A%NC 5; diital "ord bit number 0 is used for.

Option A. terminatin the data field.Option !. chec6in parit(.

Option C. identif(in "ord t(pe.

Correct Ans"er is. chec6in parit(.#$planation. N%&.

Question Number. @=. What connects an &: to the !us Coupler in an A%NC <; Data!us?.

Option A. atch Cord.

Option !. *tub Cable.Option C. %nterconnect Cable.

Correct Ans"er is. *tub Cable.

#$planation. N%&.

05.05a. *ogic &ircuits.

Question Number. 1. What is the euialent of this ate?.

Option A. H NOT/A G NOT/!B.

Option !. H A G !BNOT.

Option C. H A.!BNOT.

Correct Ans"er is. H NOT/A G NOT/!B.#$planation. Dra" the truth table for the NAND ate, then dra" the truth tables for each ans"er in

turn until (ou et one to match.



Question Number. . A NO ate "ith both inputs inerted becomes a.

Option A. NAND ate.Option !. AND ate.

Option C. O ate.

Correct Ans"er is. AND ate.#$planation. N%&.

Question Number. 0. Addin inertors to the t"o inputs of an AND ate ma6es

a.

Option A. O ate.

Option !. NO ate.Option C. NAND ate.

Correct Ans"er is. NO ate.

#$planation. N%&.

Question Number. 5. This truth table is for a.

Option A. O ate.Option !. AND ate.

Option C. NAND ate.Correct Ans"er is. AND ate.

#$planation. N%&.

Question Number. 9. Which loic ate can be represented as a parallel circuit?.Option A. O ate.

Option !. #$clusie O ate.

Option C. NAND ate.Correct Ans"er is. O ate.



#$planation. N%&.

Question Number. <. -a6in an inerter from a NAND or NO ate is achieed b(.

Option A. connectin the inputs.

Option !. inertin the input.Option C. connectin t"o in series.

Correct Ans"er is. connectin the inputs.

#$planation. N%&.

Question Number. =. An AND ate output is 1 "hen inputs are.Option A. both 1.

Option !. both 2.

Option C. 1 and 2.

Correct Ans"er is. both 1.#$planation. N%&.

Question Number. @. What sort of ate reuires t"o positie oltaes to

operate?.

Option A. AND.Option !. O.

Option C. NOT.

Correct Ans"er is. AND.

#$planation. N%&.

Question Number. ;. When "ill a NAND ate ie loic 2 at the output?.Option A. When both inputs are at 1.

Option !. When the inputs are different.

Option C. When both inputs are at 2.Correct Ans"er is. When both inputs are at 1.

#$planation. N%&.

Question Number. 12. Which loic ate has this truth table?.

Option A. NOT.Option !. NAND.

Option C. #$clusie O.

Correct Ans"er is. #$clusie O.#$planation. N%&.



Question Number. 11. Which loic ate can be represented as a parallel circuit?.

Option A. #$clusie O.

Option !. NAND.Option C. O.

Correct Ans"er is. O.

#$planation. N%&.

Question Number. 1. What is this truth table?.

Option A. NO ate.Option !. NOT ate.

Option C. AND ate.

Correct Ans"er is. AND ate.#$planation.

Question Number. 10. What sort of ate is this?.

Option A. NOT ate.Option !. NO ate.



Option C. Or ate.

Correct Ans"er is. NO ate.

#$planation. N%&.

Question Number. 15. The output of a NOT ate is loic 1. The input is.Option A. loic 2.

Option !. loic 1.

Option C. both loic 1.Correct Ans"er is. loic 2.

#$planation. N%&.

Question Number. 19. When the oltae that represents a loic 1 state is less than the oltae

that represents a loic 2 state, the loic bein used is.

Option A. either positie or neatie.Option !. positie.

Option C. neatie.

Correct Ans"er is. neatie.#$planation. N%&.

Question Number. 1<. The output of an AND ate hain t"o inputs A and ! is loic 1. Thet"o inputs "ill hae the loic states of.

Option A. A H 2, ! H 2.

Option !. A H 1, ! H 2.Option C. A H 1, ! H 1.

Correct Ans"er is. A H 1, ! H 1.

#$planation. N%&.

Question Number. 1=. The output of an O ate hain t"o inputs A and ! is loic 2. The t"oinputs "ill hae the loic states of.

Option A. A H 1, ! H 2.

Option !. A H 2, ! H 1.

Option C. A H 2, ! H 2.Correct Ans"er is. A H 2, ! H 2.

#$planation. N%&.

Question Number. 1@. What is this s(mbol?.



Option A. #$clusie AND ate.Option !. #$clusie NO ate.

Option C. #$clusie O ate.Correct Ans"er is. #$clusie O ate.#$planation. N%&.

Question Number. 1;. What &oic 7ate does this s"itch circuit indicate?.

Option A. NO ate.

Option !. AND ate.

Option C. O ate.

Correct Ans"er is. O ate.#$planation. N%&.

Question Number. 2. Which loic ate has both inputs hih to et an output?.Option A. AND ate.

Option !. O ate.

Option C. NAND ate.

Correct Ans"er is. AND ate.#$planation. N%&.



Question Number. 1. A NAND and NO to become a NOT ate hae.

Option A. inputs inerted.

Option !. outputs inerted.

Option C. inputs connected toether.Correct Ans"er is. inputs connected toether.

#$planation. N%&.

Question Number. . An AND ate "ith inerted inputs and an inerted output is euialent

to.Option A. an AND ate.

Option !. a NO ate.

Option C. an O ate.Correct Ans"er is. an O ate.

#$planation. N%&.

Question Number. 0. &oic ates internal operatin mechanisms are produced

from.

Option A. thin film resistors.Option !. transistors.

Option C. diodes.

Correct Ans"er is. transistors.#$planation. N%&.

Question Number. 5. A loic 1 ma( be represented in an analoue s(stem b( "here Q is anoutput of a latch 8 flip/flopB.

Option A. s"itch closed 8 liht off 8 Not Q.

Option !. positie 8 manetised 8 Q.Option C. s"itch open 8 liht on 8 Q.

Correct Ans"er is. positie 8 manetised 8 Q.

#$planation. N%&.

Question Number. 9. To et loic 1 usin this ate.

Option A. A and ! H 2.Option !. A or ! H 1.

Option C. A and ! H 1.Correct Ans"er is. A and ! H 2.

#$planation. N%&.



Question Number. 9. To et loic 1 usin this ate.

Option A. A and ! H 1.Option !. A or ! H 1.

Option C. A and ! H 2.

Correct Ans"er is. A and ! H 2.

#$planation. N%&.

Question Number. <. What loic ate "ould this circuit represent?.

Option A. NAND 7ate.

Option !. NO ate.Option C. AND ate.

Correct Ans"er is. AND ate.

#$planation. N%&.

Question Number. =. What t(pe of ate is this?.

Option A. NAND.Option !. NOT.

Option C. #/O.Correct Ans"er is. #/O.

#$planation. #/O is another name for O.



Question Number. @. What sort of ate reuires t"o neatie input oltaes tooperate?.

Option A. O.

Option !. NAND.Option C. NOT.

Correct Ans"er is. NAND.

#$planation. N%&.

Question Number. @. What sort of ate reuires t"o neatie input oltaes to

operate?.Option A. NAND.

Option !. O.

Option C. NOT.Correct Ans"er is. NAND.

#$planation. N%&.

Question Number. ;. %n ositie &oic representation.

Option A. both states hae same positie oltaes but stae 1 has more current.

Option !. state 1 is more positie than state 2.Option C. state 2 is more positie than state 1.

Correct Ans"er is. state 1 is more positie than state 2.

#$planation. N%&.

Question Number. 02. *"itchin "ithin loic ates is normall( achieed "ith the useof.

Option A. !T!'s.

Option !. rela(s.Option C. diodes.

Correct Ans"er is. diodes.

#$planation. N%&.

Question Number. 01. The truth table of A H2211 !H2121 and H2112 indicates that the loic

deice is.Option A. an #C&:*%+# O ate.

Option !. a NO ate.

Option C. an AND ate.Correct Ans"er is. an #C&:*%+# O ate.

#$planation. N%&.



Question Number. 0. What input is reuired to actiate the rela( sho"n?.

Option A. AH2 !H1.

Option !. AH1 !H2.

Option C. AH1 !H1.Correct Ans"er is. AH1 !H1.

#$planation. N%&.

.

Question Number. 00. A NAND ate has inputs A and ! and output C. %f the output cB "as

>ero, "hat are the inputs?.Option A. AH1 !H1.

Option !. AH2 !H2.

Option C. AH1 !H2.Correct Ans"er is. AH1 !H1.

#$planation. N%&.

05.05$. *ogic &ircuits.

Question Number. 1. The 'fan/in' in a ate is the.Option A. number of inputs to a ate.

Option !. number of outputs from a ate.

Option C. number of inputs and outputs of a ate.



Correct Ans"er is. number of inputs to a ate.

#$planation. N%&.

Question Number. . What does the loic circuit sho"n represent?.

Option A. 3ull Adder Circuit.

Option !. )alf adder circuit.Option C. -ulti/bit adder.

Correct Ans"er is. 3ull Adder Circuit.

#$planation. N%&.

Question Number. 0. What "ould be the outputs of this circuit, if AH2 !H2 CH1.

Option A. 1, 1.



Option !. 2, 1.

Option C. 2, 2.

Correct Ans"er is. 2, 1.

#$planation. Chec6 out the table on httpE88""".pla(/hoo6e(.com8diital8adder.html.httpE88""".pla(/hoo6e(.com8diital8adder.html

Question Number. 5. What "ould be the outputs of this circuit, if AH1 !H1 CH2.

Option A. 2, 1.

Option !. 1, 1.Option C. 1, 2.

Correct Ans"er is. 1, 2.

#$planation. Chec6 out the table on httpE88""".pla(/hoo6e(.com8diital8adder.html.httpE88""".pla(/hoo6e(.com8diital8adder.html



Question Number. 9. Tristate deices are found.

Option A. on input circuits.

Option !. on output circuits.Option C. on both input and output circuits.

Correct Ans"er is. on input circuits.

#$planation. N%&.

Question Number. <. A full adder has.

Option A. three inputs and t"o outputs.Option !. t"o inputs and one output.

Option C. three inputs and one output.

Correct Ans"er is. three inputs and t"o outputs.#$planation. N%&.

Question Number. =. What is the !oolean Alebra for the circuit sho"n?.

Option A. .

Option !. .

Option C. .

Correct Ans"er is. .

#$planation. N%&.

05.06a. )asic &o+uter Structure.



Question Number. 1. %n a computer memor( deice, "hich one of these has the slo"est access

time?.Option A. flopp( dis6.

Option !. manetic tape.

Option C. @mm ideo tape.Correct Ans"er is. manetic tape.

#$planation. @mm ideo tape is not and neer has beenB a computer memor( deice.

Question Number. . The adantae of DA- oer *A- is.

Option A. are cheaper to manufacture.Option !. has a larer storae capacit( per chip area.

Option C. the( operate slo"er.

Correct Ans"er is. has a larer storae capacit( per chip area.

#$planation. N%&. httpE88en."i6ipedia.or8"i6i8DA-

Question Number. 0. A !4T# is usuall(.Option A. an @ bit "ord.

Option !. a si$ bit "ord.

Option C. a 1 bit "ord.Correct Ans"er is. an @ bit "ord.

#$planation. N%&.

Question Number. 5. What is the definition of baud rate?.

Option A. 1 "ord per second.

Option !. 1 b(te per second.Option C. 1 bit per second.

Correct Ans"er is. 1 bit per second.

#$planation. N%&.

Question Number. 9. Which "ould hae the least components?.Option A. A&:.

Option !. C:.

Option C. &*%.

Correct Ans"er is. A&:.#$planation. N%&.

Question Number. <. What is a baud?.

Option A. A bit of data.

Option !. A bloc6 of data.Option C. A b(te of data.

Correct Ans"er is. A bit of data.

#$planation. N%&.



Question Number. =. %n a bi/stable memor( circuit.

Option A. the memor( is retained indefinabl(.Option !. the memor( is lost as soon as po"er is remoed.

Option C. the memor( needs to be refreshed constantl(, een "hen po"er is on.

Correct Ans"er is. the memor( is lost as soon as po"er is remoed.#$planation. N%&.

Question Number. @. What is the adantae of series oer parallel messae

sendin?.

Option A. Onl( one pair of conductors.Option !. -ore information sent.

Option C. Quic6er.

Correct Ans"er is. Onl( one pair of conductors.

#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 15<.

Question Number. ;. A t(pical e$ample of a mass storae memor( deice "hich is alsoWO- Write Once ead -an(B is.

Option A. an %C.

Option !. a manetic tape.Option C. a CD om.

Correct Ans"er is. a CD om.

#$planation. N%&.

Question Number. 12. A computer usin A- "ould utili>e.

Option A. manetic tape.Option !. a compact disc.

Option C. an interated circuit chipB.

Correct Ans"er is. an interated circuit chipB.#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 15<.

Question Number. 11. -anetic materials are used in.

Option A. O-s onl(.

Option !. some A-s.

Option C. #O-.Correct Ans"er is. some A-s.

#$planation. N%&.

Question Number. 1. A t(pical e$ample of a mass storae deice is.

Option A. %C.Option !. manetic tape.

Option C. CD.

Correct Ans"er is. CD.



#$planation. N%&.

Question Number. 10. What is #O-?.Option A. #nhanced prorammable read onl( memor(.

Option !. #rasable prorammable read onl( memor(.

Option C. #rasable prorammin read onl( module.Correct Ans"er is. #rasable prorammable read onl( memor(.

#$planation. !asic #lectronics -alcolm lant ae @=#.

Question Number. 15. )o" man( b(tes can be carried in a 0bit "ord?.

Option A. @ b(tes.Option !. 5 b(tes.

Option C. b(tes.

Correct Ans"er is. 5 b(tes.

#$planation. @ bits per b(te.

Question Number. 19. A common used material in computer manufacturin is.Option A. ferrite material.

Option !. permeama material.

Option C. ferromanetic material.Correct Ans"er is. ferromanetic material.

#$planation. 3erromanetic material is that "hich hard/dries and flopp( dries are made

from.

Question Number. 1<. 3errite medium is used for computer memor( because.

Option A. data is stored after the po"er is remoed.Option !. it is liht.

Option C. it has lo" edd( current losses.

Correct Ans"er is. data is stored after the po"er is remoed.#$planation. N%&.

Question Number. 1=. Data is usuall( stored in.

Option A. A-.

Option !. O-.

Option C. ##O-.Correct Ans"er is. O-.

#$planation. N%&.

05.06$. )asic &o+uter Structure.

Question Number. 1. eisters are used in diital computers to.

Option A. store bits of information in a permanent memor(.

Option !. store a limited amount of information on a temporar( basis.



Option C. 6eep a count of operations completed.

Correct Ans"er is. store a limited amount of information on a temporar( basis.

#$planation. N%&.

Question Number. . A computer consist of at least the C..: and.

Option A. memor( and input output port.Option !. memor(, A&:, input output port.

Option C. reister section, A&:, timin and control section.

Correct Ans"er is. memor( and input output port.#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 155, and Aircraft

%nstruments and %nterated *(stems allett ae 190 3i <.1.

Question Number. 0. A basic computer "ould consist of.

Option A. reister section, A&: and timin and control section.

Option !. memor(, input8output ports and C:.Option C. A-8O- and input8output ports.

Correct Ans"er is. memor(, input8output ports and C:.

#$planation. allett Aircraft instuments %nterated *(stems ae 190.

Question Number. 5. DA-.Option A. reuires a refreshin chare.

Option !. memor( is stored "hen po"er suppl( is remoed.

Option C. it does not reuire a refreshin chare.

Correct Ans"er is. reuires a refreshin chare.#$planation. N%&. httpE88computer.ho"stuff"or6s.com8ram5.htm

Question Number. 9. !ubble memor( stores data on.

Option A. manetic tape.

Option !. semiconductor material.Option C. ferrite core.

Correct Ans"er is. semiconductor material.

#$planation. N%&. """.tpub.com8neets8boo68;a.htm

Question Number. <. An #O-.

Option A. is non/olatile memor(.Option !. reuires constant refreshin.

Option C. is erased after readin.

Correct Ans"er is. is non/olatile memor(.#$planation. N%&.

Question Number. =. A computer reuires to operate, a.

Option A. address bus, a data bus onl(.

Option !. data bus, a control bus, a address bus.



Option C. data bus, a control bus onl(.

Correct Ans"er is. data bus, a control bus, a address bus.

#$planation. N%&.

Question Number. @. data bus, a control bus onl(.

Option A. DA-.Option !. *A-.

Option C. A-.

Correct Ans"er is. *A-.#$planation. N%&.

Question Number. ;. A computer is actin in real time "hen.

Option A. the C: reuires a cloc6 pulse.

Option !. the output is eual to the input of data.

Option C. the time to access memor( is eual to the data speed in.Correct Ans"er is. the output is eual to the input of data.

#$planation. N%&.

05.0,. Micro+rocessors.

Question Number. 1. What is the function of a status reister in a

microprocessor?.

Option A. To indicate the status of the processor.

Option !. %n the A&:, to store the position of the proram durin an interrupt.Option C. To s(nchroni>e the cloc6 pulse.

Correct Ans"er is. To indicate the status of the processor.

#$planation. N%&. httpE88""".i/arden.or8docu8cecs8cs15.pdf

Question Number. . What is the purpose of the A&:?.Option A. To store data bein used b( the C:.

Option !. The part of the C: unit "here arithmetic loic operations are carried out.

Option C. To conert serial into parallel data.Correct Ans"er is. The part of the C: unit "here arithmetic loic operations are carried

out.

#$planation. Aircraft #lectricit( and #lectronics, #ismin, 9th #dition ae 15<.

Question Number. 0. The C: consists of.

Option A. A&:, timin and control section, reister.Option !. reister and arithmetic loic unit onl(.

Option C. reister, timin and control section onl(.

Correct Ans"er is. A&:, timin and control section, reister.#$planation. Aircraft %nstruments and %nterated *(stems #) allett ae 190 !asic C:,. Aircraft

#lectricit( and #lectronics #ismin 9th #dition ae 159.



Question Number. 5. )o" is multiplication achieed in an A&:?.

Option A. b( addition.

Option !. b( subtraction.Option C. b( couplin.

Correct Ans"er is. b( addition.

#$planation. N%&.

Question Number. 9. The smallest operation of a C: is.Option A. the processor c(cle.

Option !. the processor sub/c(cle.

Option C. the time c(cle.Correct Ans"er is. the time c(cle.

#$planation. N%&.

Question Number. <. Where does the cloc6 sinal in a microprocessor come

from?.

Option A. A&:.Option !. -emor(.

Option C. Control unit.

Correct Ans"er is. Control unit.#$planation. Aircraft %nstruments and %nterated *(stems, allett. ae 190.

Question Number. =. Where is the operatin proram for the C: stored?.Option A. Control unit.

Option !. A&:.

Option C. -emor( unit.Correct Ans"er is. -emor( unit.

#$planation. Aircraft %nstruments and %nterated *(stems, allett. ae 190.

Question Number. @. A priorit( encoder.

Option A. outputs the hihest input.Option !. outputs the selected input.

Option C. outputs the lo"est input.

Correct Ans"er is. outputs the hihest input.

#$planation. N%&.

Question Number. ;. The smallest operation possible in a computer is the.Option A. timin c(cle.

Option !. processor sub/c(cle.

Option C. processor c(cle.Correct Ans"er is. timin c(cle.

#$planation. Also 6no"n as the cloc6 pulse.



Question Number. 12. A cloc6 pulse in processor euipment.

Option A. is to s(nchronise eer(thin.

Option !. is used for the maintenance tests.Option C. is to ie the correct timin "hen calculations are made.

Correct Ans"er is. is to s(nchronise eer(thin.

#$planation. N%&.

Question Number. 11. %n a computer, the code that fetches correct data and feeds it to the A&:is called.

Option A. the instruction set.

Option !. A%NC.Option C. the computer proram.

Correct Ans"er is. the instruction set.

#$planation. N%&. httpE88"""."ebopedia.com8T#-8%8instruction.html

Question Number. 1. A computer processor has "ithin it.

Option A. reister, buffer, data bus.Option !. A&:, reister, memor(.

Option C. A&:, control section, reister.

Correct Ans"er is. A&:, control section, reister.#$planation. N%&.

Question Number. 10. The arithmetic loic unit A&:B in a central processor unit C:B carriesout.

Option A. addition, subtraction, multiplication and diision.

Option !. computations as instructed.Option C. timin and s(nchronisation.

Correct Ans"er is. addition, subtraction, multiplication and diision.

#$planation. N%&.

Question Number. 15. The C: reuires a cloc6 to determine.Option A. the number of bits on the hih"a(.

Option !. the speed of operation.

Option C. the date and time.

Correct Ans"er is. the speed of operation.#$planation. N%&.

Question Number. 19. An A&: performs the follo"in.

Option A. Arithmetic, &oic, !ranch and -oe Operations.

Option !. %nput8Output operations, Arithmetic, &oic 3unctions.Option C. Arithmetic, &oic, !ranch and 3ind Operations.

Correct Ans"er is. %nput8Output operations, Arithmetic, &oic 3unctions.

#$planation. N%&.



05.0-. Integrated &ircuits.

Question Number. 1. What function do ates 1 and perform?.

Option A. 3ull adder.

Option !. )alf Adder.

Option C. *hift eister.Correct Ans"er is. )alf Adder.

#$planation. N%&. httpE88s.fansha"ec.ca8tlc8math=28M=M!inar(MAdders.htm

Question Number. . On an %C, pin 1 is to the left of the notch. Which "a( are the pins

numbered?.

Option A. &eft to riht.

Option !. Anticloc6"ise.Option C. Cloc6"ise.

Correct Ans"er is. Anticloc6"ise.

#$planation. N%&. httpE88""".6psec.freeu6.com8components8ic.htm

Question Number. 0. When 5 binar( serial counters are connected in cascade for freuenc(diision, "hat diision factor is reuired?.

Option A. @.

Option !. 1<.Option C. 5.

Correct Ans"er is. 1<.

#$planation. #ach serial counter chanes its state once eer( cloc6 pulses. *o 5 serial counters

diides b( $$$ H 1<.



Question Number. 5. 0 binar( counters in cascade. What is the diision?.

Option A. 0.

Option !. @.Option C. 1<.

Correct Ans"er is. @.

#$planation. #ach serial counter chanes its state once eer( cloc6 pulses. *o 0 serial countersdiides b( $$ H @.

Question Number. 9. Within a 0 bit freuenc( cascade, diision is to.

Option A. .

Option !. 5.Option C. @.

Correct Ans"er is. @.

#$planation. N%&.

Question Number. <. +er( &are *cale %nterated +&*%B means the number of ates in a

sinle %C is.Option A. up to 12,222.

Option !. oer 12,222.

Option C. up to 1222.Correct Ans"er is. oer 12,222.

#$planation. N%&.

Question Number. =. An encoder chanes.

Option A. diital to analoue.

Option !. analoue to diital.Option C. data from one format to another.

Correct Ans"er is. data from one format to another.

#$planation. N%&.

Question Number. @. An * flip/flop "ith Q at 1 is said to be.Option A. set.

Option !. reset.

Option C. >ero.

Correct Ans"er is. set.#$planation. N%&.

Question Number. ;. When a J flip flop is used as a memor( deice, "hat t(pe of memor(

"ould it be?.

Option A. read/onl(.Option !. non/olatile.

Option C. olatile.

Correct Ans"er is. olatile.



#$planation. N%&.

Question Number. 12. %n an * flip flop, output is one. This means it is.Option A. intermediate.

Option !. reset.

Option C. set.Correct Ans"er is. set.


Question Number. 11. An A&: is an e$ample of.

Option A. -*%.Option !. **%.

Option C. &*%.

Correct Ans"er is. &*%.

#$planation. N%&.

Question Number. 1. With a L/6 flip flop "hich is the output set.Option A. H 1.

Option !. H 2.

Option C. either.Correct Ans"er is. H 1.

#$planation. N%&.

Question Number. 10. Data is conerted from serial to parallel and parallel to serial

b(.

Option A. a s(nchronous counter.Option !. a parallel reister.

Option C. a shift reister.

Correct Ans"er is. a shift reister.#$planation. N%&.

Question Number. 15. A t(pical characteristic of a C-O* is.

Option A. hih po"er dissipation.

Option !. hih oltae handlin.

Option C. lo" po"er dissipation.Correct Ans"er is. lo" po"er dissipation.


Question Number. 19. The pins on an op amp are numbered.

Option A. anticloc6"ise.Option !. cloc6"ise.

Option C. cross "a(s.

Correct Ans"er is. anticloc6"ise.



#$planation. N%&.

Question Number. 1<. A parallel reister.Option A. reuires a cloc6 pulse for each bit.

Option !. reads each bit to be stored simultaneousl(.

Option C. reads the stored data "hen loic 2 is applied to the read line.Correct Ans"er is. reads each bit to be stored simultaneousl(.

#$planation. N%&.

Question Number. 1=. A deice, "hich conerts serial to parallel and parallel to serial for

arithmetical functions, is a.Option A. arallel to serial and serial to parallel conerter.

Option !. *hift eister.

Option C. -ultiple$er and De/-ultiple$er.

Correct Ans"er is. *hift eister.#$planation. ulse code modulation8parallel to seria.

Question Number. 1@. What is the deice used to conert !inar( Coded Decimal into separate

supplies for a seen sement diital displa(?.

Option A. -ultiple$er.Option !. Decoder.

Option C. Demultiple$er.

Correct Ans"er is. Decoder.

#$planation. * cataloue...part number CA01<1 see """.*""".com "ebsite and enter the partnumber in their search bo$B.

Question Number. 1;. Operation of a freuenc( counter is such that.

Option A. it compares the incomin "aeform "ith standard sine "aes.

Option !. it detects incidences of pea6 alue.Option C. it chanes the incomin "aeform to a standard suare "ae.

Correct Ans"er is. it chanes the incomin "aeform to a standard suare "ae.

#$planation. Aircraft #lectricit( and #lectronics, #ismin ae 1<@.

Question Number. 2. An e$ample of a small si>e interated circuit "ould be.

Option A. D% s"itch.Option !. Control rocessor :nit.

Option C. A&:.

Correct Ans"er is. Control rocessor :nit.#$planation. A D% s"itch is not an %C. A&: is an interated part of the C:. The 'Control rocessor

:nit' is another term used for the 'Central rocessor :nit C:B' or sometimes a s"itchin unit used in

teleraph( such as the touch/pad of a telephoneB / the latter "ould be an **% defined as containin upto 122 transistors or atesB.



Question Number. 1. What is this?.

Option A. Counter.

Option !. *hift reister.Option C. -ultiple$er.

Correct Ans"er is. -ultiple$er.

#$planation. N%&.

Question Number. . %n a -aster *lae, neatie ede triered J flip flop, both inputs are

connected to loic 1. The output.Option A. "ill chane state "hen the leadin ede of the cloc6 pulse is applied.

Option !. "ill chane state "hen the trailin ede of the cloc6 pulse is applied.

Option C. does not chane state "hen a cloc6 pulse is applied.Correct Ans"er is. "ill chane state "hen the trailin ede of the cloc6 pulse is applied.

#$planation. N%&.

05.0. Multi+le/ing.

Question Number. 1. A 1 bit 1< Channel encoder "ill use a multiple$er "ith.Option A. 0 bit parallel address line.



Option !. 5 bit parallel address line.

Option C. "ire series address line.

Correct Ans"er is. 5 bit parallel address line.

#$planation. With 1< inputs, it needs 5 data select lines to proide all 1< combinationsB.

Question Number. . )o" man( address lines "ould be needed for an @ line-:?.

Option A. .



#$planation. N%&.

Question Number. 0. %n a -:, ho" is parallel conerted to serial?.

Option A. !( "a( of a shift reister.Option !. !( "a( of an encoder.

Option C. !( "a( of a demultiple$er.

Correct Ans"er is. !( "a( of a shift reister.#$planation. N%&.

Question Number. 5. A multiple$er.

Option A. ta6es man( sinals in and conerts it to a serial transmission output.

Option !. ta6es man( sinals in and puts these in a parallel transmission on the output.

Option C. ta6es one sinal in and conerts it to a parallel transmission output.Correct Ans"er is. ta6es man( sinals in and conerts it to a serial transmission output.

#$planation. N%&.

Question Number. 9. A multiple$er in test euipment could be used for.

Option A. freuenc( diider.Option !. analoue to diital conerter.

Option C. diital to analoue conerter.

Correct Ans"er is. freuenc( diider.#$planation. N%&.

Question Number. <. An @ data input multiple$er has ho" man( Data *electlines.

Option A. @.

Option !. 0.Option C. .


#$planation. N%&.

Question Number. =. The sinal sent bet"een a -:8D#-: is controlled b(.



Option A. cloc6.

Option !. the A&:.

Option C. control unit.

Correct Ans"er is. control unit.#$planation. N%&.

05.10. i$re +tics.

Question Number. 1. *ome of the adantaes of fibre optic cable oer copper cablesare.

Option A. non conductie, eas( to manufacture and assemble, more robust, cheap.

Option !. smaller in si>e and "eiht, non conductie, hiher securit( and hiher band"idth.Option C. non conductie, smaller in si>e and "eiht, eas( to manufacture and assemble and

hiher securit(.

Correct Ans"er is. smaller in si>e and "eiht, non conductie, hiher securit( and hiher

band"idth.#$planation. N%&.

Question Number. . A fibre optic cable consists of.

Option A. a silica lass core "ith a claddin hain a lo"er refractie inde$.

Option !. a silica lass core "ith a claddin hain a hiher refractie inde$.Option C. a plastic core "ith a claddin hain a hiher refractie inde$.

Correct Ans"er is. a silica lass core "ith a claddin hain a lo"er refractie inde$.

#$planation. N%&. """.commspecial.com8fiberuide

Question Number. 0. 3ibre optic cables.

Option A. are immune to #-%.Option !. attenuate #-%.

Option C. are susceptible to #-%.

Correct Ans"er is. are immune to #-%.#$planation. N%&.

Question Number. 5. T"o connected fibre optic cable ends are parallel but not uite touchin.

This is called.

Option A. end to end couplin.

Option !. lens connector.Option C. end fire couplin.

Correct Ans"er is. end to end couplin.

#$planation. N%&.

Question Number. 9. A disadantae of a fibre optic cable is.Option A. couplins susceptible to inress of fluid.

Option !. end terminals are susceptible to enironmental contamination.

Option C. shallo" bend radius allo"ed.



Correct Ans"er is. end terminals are susceptible to enironmental contamination.

#$planation. N%&. """.commspecial.com8fiberuide.htm

Question Number. <. What 6ind of liht is used in a fibre optic s(stems?.

Option A. %nfrared.

Option !. +isible.Option C. :ltraiolet.

Correct Ans"er is. %nfrared.

#$planation. N%&. """.floti.bell.ac.u68-athsh(sics8liht.htm

Question Number. =. 3ibreoptic data is sent b(.Option A. modulatin the freuenc( of a laser beam.

Option !. a strobe liht.

Option C. modulatin the freuenc( of a filament beam.

Correct Ans"er is. a strobe liht.#$planation. -odulatin the freuenc( "ould chane the colour of the liht.

Question Number. @. )%3 is preented from enterin a fibre optic cable b(.

Option A. usin an opto/isolator couplin.

Option !. roundin the fibre at both ends.Option C. enclosin it in a metal braid.

Correct Ans"er is. usin an opto/isolator couplin.

#$planation. Althouh a fiber optic cable is 'immune' from collectin )%3, it can still transmit )%3

"hich has been pic6ed up b( the source circuitr(. An optoelectronic isolator "ill filter out the )%3 prior to transmission.

Question Number. ;. Continuit( of a fibreoptic cable is chec6ed b(.

Option A. a calibrated liht source.

Option !. a calibrated liht source and an opto/po"er meter.Option C. a liht source and an opto/po"er meter.

Correct Ans"er is. a calibrated liht source and an opto/po"er meter.

#$planation. N%&. httpE88""".tpub.com8neets8tm812;/10.htm

Question Number. 12. A fibreoptic data bus used on an aircraft.

Option A. can send onl( one messae at a time.Option !. can transmit on seeral channels at the same time.

Option C. connects non/essential s(stems onl(.

Correct Ans"er is. can transmit on seeral channels at the same time.#$planation. N%&.

Question Number. 11. &iht traels alon a fibre optic b(.

Option A. refraction.

Option !. reflection.



Option C. dispersion.

Correct Ans"er is. reflection.

#$planation. N%&.

Question Number. 1. What is the main disadantae of a fibre optic data bus?.

Option A. &ess stron and durable "hen compared to t"isted pair and coa$ial cable.Option !. #$pensie to install.

Option C. !end radius and moisture inress at connections.

Correct Ans"er is. #$pensie to install.#$planation. N%&.

Question Number. 10. A t(pical fibre optic connector is.

Option A. 3/t(pe connector.

Option !. couplin t(pe, "ith lens fitted.

Option C. push/pull connector.Correct Ans"er is. couplin t(pe, "ith lens fitted.

#$planation. N%&.

Question Number. 15. Which of the follo"in is an optoelectronic deice?.

Option A. Triac.Option !. &aser Diode.

Option C. Th(ristor.

Correct Ans"er is. &aser Diode.

#$planation. N%&.

Question Number. 19. What is the adantae of a sinle mode fibreoptic oer ordinar("ire?.

Option A. Not prone to damae.

Option !. &are band"idth.Option C. *mall bend radius.

Correct Ans"er is. &are band"idth.

#$planation. N%&.

Question Number. 1<. A fibreoptic liht source is normall(.

Option A. a strobe liht.Option !. a filament lamp.

Option C. a laser or &#D.

Correct Ans"er is. a laser or &#D.#$planation. N%&.

Question Number. 1=. The fibreoptic cable can be identified on aircraft b( its Lac6et colour

"hich is.

Option A. purple.



Option !. (ello".

Option C. red.

Correct Ans"er is. purple.

#$planation. N%&.

Question Number. 1@. 3or a fibre optic cable connector that is not reularl( disconnected (ou"ould use the.

Option A. butt t(pe.

Option !. ball lens t(pe.Option C. ceramic lens t(pe.

Correct Ans"er is. butt t(pe.

#$planation. N%&.

Question Number. 1;. What maintenance problems are associated "ith

fibreoptics?.Option A. Corrosion.

Option !. Jin6in and contamination of connectors.

Option C. #arthin faults.Correct Ans"er is. Jin6in and contamination of connectors.

#$planation. N%&.

Question Number. 2. A fibreoptic data bus.

Option A. can transmit seeral messaes simultaneousl(.

Option !. is onl( used for non essential messaes.Option C. can onl( transmit 1 messae at a time.

Correct Ans"er is. can transmit seeral messaes simultaneousl(.

#$planation. N%&.

Question Number. 1. A fiberoptic cable to &: connector should be connected.Option A. er( carefull( to ensure alinment and reduce liht loss.

Option !. usin torue/loaded pliers.

Option C. hand tiht onl(.Correct Ans"er is. er( carefull( to ensure alinment and reduce liht loss.

#$planation. N%&.

Question Number. . *ome of the adantaes of fibreoptic cable oer copper cable

are.

Option A. smaller si>e and "eiht, non conductie, more rued, hiher securit(.Option !. non conductie, eas( to manufacture and assemble, hiher band"idth.

Option C. non conductie, hiher band"idth, hiher securit(, smaller si>e and "eiht.

Correct Ans"er is. non conductie, hiher band"idth, hiher securit(, smaller si>e and "eiht.#$planation. N%&.



Question Number. 0. %n a sinle mode fibreoptic cable.

Option A. seeral "aes trael do"n the cable.

Option !. the diameter of the cable is dependent on the "aelenth of the liht used.

Option C. the distortion of the sinal is dependent on the lenth of cable.Correct Ans"er is. the diameter of the cable is dependent on the "aelenth of the liht used.

#$planation. N%&.

Question Number. 5. A semiconductor "hich emits photons and releases electrons "hen

stimulated b( photons is called.Option A. a photodiode.

Option !. a laser diode.

Option C. an &#D.Correct Ans"er is. a laser diode.

#$planation. N%&.

Question Number. 9. What does a fibreoptic star connection do?.

Option A. roides a continuous loop of fibre interconnectin all nodes.

Option !. roides direct point/to/point serices to units on dedicated lines emanatin from thecentral hub.

Option C. *hares a common band"idth of a common cable.

Correct Ans"er is. roides direct point/to/point serices to units on dedicated lines emanatinfrom the central hub.

#$planation. N%&.

Question Number. <. A fibreoptic lens t(pe couplin "ith lens and interal &#D compared to

an end/fire couplin is.

Option A. more efficient.Option !. less efficient.

Option C. euall( efficient.

Correct Ans"er is. more efficient.#$planation. N%&.

Question Number. =. assie sensors in fibreoptics.

Option A. assie sensors in fibreoptics.

Option !. reuire po"er for processin the sinal before the( send them do"n the fibre

optic.Option C. reuire no po"er and the( do not process sinals.

Correct Ans"er is. process the sinal but do not reuire po"er.

#$planation. N%&.

Question Number. @. Optical fibre losses are due to.Option A. absorption onl(.

Option !. absorption, scatterin and reflection.

Option C. radiation, absorption and reflection.



Correct Ans"er is. absorption, scatterin and reflection.

#$planation. %ntroduction to 3iber Optics ohn Crisp ae 92.

Question Number. ;. The cone of acceptance is measured bet"een.

Option A. the t"o outer anles.

Option !. the t"o outer anles.Option C. lonitudinal a$is of the core and the outer anle.

Correct Ans"er is. lonitudinal a$is of the core and the outer anle.

#$planation. %ntroduction to 3iber Optics ohn Crisp ae ;.

Question Number. 02. 3ibreoptic cables use.Option A. refractie outer shell.

Option !. reflectie inner shell.

Option C. reflectie outer shell.

Correct Ans"er is. refractie outer shell.#$planation. The outer claddin is lass, so it is refractie but less so than the coreB. Claddin causes

Total %nternal eflection T%B, so uestion can be interpreted in t"o "a(s.

Question Number. 01. %n fibreoptic cable, sinals are separated b(.

Option A. actie optic filter.Option !. lo" pass filter.

Option C. passie optic filter.

Correct Ans"er is. actie optic filter.

#$planation. N%&.

Question Number. 0. -ost fibreoptic connectors are desined so.Option A. the receptacle has to be torued to a desinated alue to ensure correct alinment.

Option !. the connectors can not be oer tihtened.

Option C. the connector can not be replaced on the aircraft.Correct Ans"er is. the connectors can not be oer tihtened.

#$planation. N%&.

Question Number. 00. The liht source used in fibreoptics is.

Option A. isible liht.

Option !. lo"er band"idth than isible liht.Option C. hiher band"idth than isible liht.

Correct Ans"er is. hiher band"idth than isible liht.

#$planation. %ntroduction to 3iber Optics Crisp ae 1@81;.

Question Number. 05. &iht transmission in a fibreoptic cable is due to.Option A. repeated internal reflection.

Option !. defraction of the liht.

Option C. refraction of the liht.



Correct Ans"er is. repeated internal reflection.

#$planation. N%&.

Question Number. 09. The name ien to the Loinin of t"o fibreoptic cables b( alinin them

carefull( and brinin them into close pro$imit( of each other is.

Option A. 3usion.Option !. &ens Couplin.

Option C. #nd to end.

Correct Ans"er is. #nd to end.#$planation. N%&.

Question Number. 0<. %n a fibreoptic cable.

Option A. multiple data sinals can be sent do"n it at one time.

Option !. data can onl( be sent in one direction.

Option C. onl( one data sinal can be sent do"n it at an( one time.Correct Ans"er is. multiple data sinals can be sent do"n it at one.

#$planation. %ntroduction to 3iber Optics ohn Crisp pae 1@;.

Question Number. 0=. 3ibreoptics relies on.

Option A. fibre absorbin liht.Option !. liht escapin claddin.

Option C. liht reflectin off claddin.

Correct Ans"er is. liht reflectin off claddin.

#$planation. N%&.

Question Number. 0@. The 'liht' emitted from a &#D used "ithin a fibre/optic s(stem "ill haea "aelenth.

Option A. slihtl( shorter then that of isible liht.

Option !. eual to that of isible liht.Option C. slihtl( loner then that of isible liht.

Correct Ans"er is. slihtl( loner then that of isible liht.

#$planation. %nfrared from @92nm. +isible liht is 522 / @22 nm.

Question Number. 0;. *ensors in a fibreoptic fliht control s(stem.

Option A. reuire processin to ie output.Option !. does not reuire po"er.

Option C. reuire po"er for processors.

Correct Ans"er is. reuire po"er for processors.#$planation. The sensor is usuall( a photo/diode.

Question Number. 52. 3ibreoptic s(stems can transmit data in.

Option A. in t"o directions.

Option !. both directions at the same time.



Option C. one direction onl(.

Correct Ans"er is. both directions at the same time.

#$planation. N%&.

Question Number. 51. 3or hih band"idth hih/speed fibreoptic transmission "hat sort of cable

"ould (ou use?.Option A. *tep inde$.

Option !. *inle mode.

Option C. 7raded inde$.Correct Ans"er is. *inle mode.

#$planation. N%&.

Question Number. 5. %n fibreoptics the "aelenth of the liht is.

Option A. more than isible liht.

Option !. eual to that of isible liht.Option C. less than isible liht.

Correct Ans"er is. more than isible liht.

#$planation. N%&.

Question Number. 50. What is the adantae of an %&D oer an &#D "hen used as a lihtsource in fibre optics?.

Option A. &o"er freuenc( rane.

Option !. &o"er intensit(.

Option C. )iher band"idth.Correct Ans"er is. &o"er freuenc( rane.

#$planation. N%&.

Question Number. 55. *peed of liht in a fibreoptic fibre.

Option A. increases if it passes throuh material of hiher refractie inde$.Option !. is al"a(s the same no matter "hat material it is.

Option C. is neer reater then the speed of liht in free space.

Correct Ans"er is. is neer reater then the speed of liht in free space.#$planation. 3iber Optics Communication and Other Applications ae 19.

Question Number. 59. The anle of incidence of a beam of liht in a fibreoptic cable "ill be.

Option A. t"ice that of the cone of acceptance.

Option !. appro$imatel( half that of the cone of acceptance.Option C. parallel "ith the end of the cable.

Correct Ans"er is. appro$imatel( half that of the cone of acceptance.

#$planation. 3iber Optics Communication and Other Applications ae 5<8=. resumabl(, this meansthe -A%-:- anle of incidence.



Question Number. 5<. %n an optical fibre, the anle of acceptance is.

Option A. 18 the sinal "aelenth.

Option !. eual to the cone of acceptance.

Option C. 18 the cone of acceptance.Correct Ans"er is. eual to the cone of acceptance.

#$planation. %ntroduction to 3iber Optics ohn Crisp pae ;.

Question Number. 5=. When usin a TD time dela( reflectometerB the loss alue of the cable

is.Option A. sho"n b( the cure on the screen.

Option !. set on the TD.

Option C. allo"ed for in the calculation.Correct Ans"er is. sho"n b( the cure on the screen.

#$planation. N%&.

Question Number. 5@. Common aircraft fibreoptics use.

Option A. modulatin intensit( on direct read.

Option !. modulatin intensit( on indirect read.Option C. modulatin freuenc( on direct read.

Correct Ans"er is. modulatin intensit( on direct read.

#$planation. N%&.

Question Number. 5;. What is the main cause of attenuation in fibreoptics?.

Option A. oor termination.Option !. efractie inde$.

Option C. !ends in the cable.

Correct Ans"er is. oor termination.#$planation. N%&.

Question Number. 92. What is the adantae of a laser diode oer an &#D?.

Option A. 7reater band"idth.

Option !. Narro"er band"idth.Option C. There are no adantaes.

Correct Ans"er is. Narro"er band"idth.

#$planation. N%&.

Question Number. 91. A 't(pe A' fibre optic connector.

Option A. is used "hen reular disconnection and re/connection of a cable is reuired.Option !. produces a larer liht loss that a t(pe ! connector.

Option C. "ould be used for connections not reularl( disconnected.

Correct Ans"er is. "ould be used for connections not reularl( disconnected.#$planation. N%&.

05.11. Electronic Dis+la!s.



Question Number. 1. The inside of a CT consists of.

Option A. an o$ide coatin and rare mercur( as.Option !. a phosphor coatin and rare mercur( as.

Option C. iodine and rare mercur( as.

Correct Ans"er is. a phosphor coatin and rare mercur( as.#$planation. allett / Aircraft %nstruments ae @5.

Question Number. . CT hori>ontal beam control is achieed b( a.

Option A. sinusoidal "ae.

Option !. suare "ae.Option C. sa"tooth "ae.

Correct Ans"er is. sa"tooth "ae.

#$planation. N%&.

Question Number. 0. %n a CT, if the manetic field is parallel to the 4 plates, "hat "ill be the

direction of the electron beam moement?.Option A. )ori>ontal.

Option !. +ertical.

Option C. No moement.Correct Ans"er is. +ertical.

#$planation. The 4 plates lie hori>ontal. :se the riht hand rule to "or6 out the direction of electron

beam moement. Aircraft %nstruments %nterated *(stems, allett, pae @=.

Question Number. 5. rimar( colours of a CT are.

Option A. red, reen and (ello".Option !. red, blue and (ello".

Option C. red, reen and blue.

Correct Ans"er is. red, reen and blue.#$planation. N%&.

Question Number. 9. What are the effects of the and 4 plates on a CT?.

Option A. 4 plates moe the beam erticall(, plates moe the beam hori>ontall(.

Option !. plates moe the beam erticall(, 4 plates moe the beam hori>ontall(.

Option C. and 4 plates can moe the beam in either direction.Correct Ans"er is. 4 plates moe the beam erticall(, plates moe the beam hori>ontall(.

#$planation. N%&.

Question Number. <. #AD% s6( and round displa( is proided b(.

Option A. s(nthetic T+ sinals.Option !. stro6e pulse.

Option C. raster scan.

Correct Ans"er is. raster scan.



#$planation. N%&.

Question Number. =. What freuenc( creates the raster effect on a CT?.Option A. 928<2 )>.

Option !. 92)>.

Option C. 522 )>.Correct Ans"er is. 928<2 )>.

#$planation. N%&.

Question Number. @. The s"eep "aeform used on a electromanetic CT is.

Option A. trape>oidal.Option !. sinusoidal.

Option C. sa"tooth.

Correct Ans"er is. trape>oidal.

#$planation. Do not et confused "ith an electrostatic CT. #lectromanetic CT uses trape>oidal"aeform to oercome the impedance of the coil.

Question Number. ;. What shape does the "aeform ta6e to counter the impedance effect of

the coils in an electromanetic controlled CT?.

Option A. *a"tooth.Option !. ectanular.

Option C. Trape>oid.

Correct Ans"er is. Trape>oid.

#$planation. Do not et confused "ith an electrostatic CT.

Question Number. 12. -anetic deflection in a CT is achieed b(.Option A. a sa"tooth "aeform.

Option !. a trape>oidal "aeform.

Option C. a sinusoidal oltae.Correct Ans"er is. a trape>oidal "aeform.

#$planation. Do not et confused "ith electrostatic deflection platesB, "hich "ould be sa"tooth.

Question Number. 11. The timebase in a CT consists of.

Option A. an amplifier and an oscillator.

Option !. an oscillator onl(.Option C. an amplifier onl(.

Correct Ans"er is. an amplifier and an oscillator.

#$planation. N%&.

Question Number. 1. What creates the raster effect on a CT?.Option A. *a"tooth freuenc(.

Option !. Trape>oidal freuenc(.

Option C. *inusoidal freuenc(.



Correct Ans"er is. *a"tooth freuenc(.

#$planation. N%&.

Question Number. 10. &CD screens are drien b(.

Option A. AC oltae.

Option !. ariable current DC oltae.Option C. fi$ed current DC oltae.

Correct Ans"er is. AC oltae.

#$planation. N%&.

Question Number. 15. A &iuid Cr(stal Displa( &CDB has the adantae oer a CTthat.

Option A. it reuires no coolin.

Option !. it displa(s more colours.

Option C. it reuires less sericin.Correct Ans"er is. it reuires no coolin.

#$planation. N%&.

Question Number. 19. The release of a photon b( another photon is the principle

of.Option A. a photo diode.

Option !. a >ener diode.

Option C. an &#D.

Correct Ans"er is. an &#D.#$planation. N%&.

Question Number. 1<. %f a manetic field is parallel to the plates in a CT, "hich "a( "ill

the beam moe?.

Option A. +erticall(.Option !. )ori>ontall(.

Option C. Diaonall(.

Correct Ans"er is. )ori>ontall(.#$planation. N%&.

Question Number. 1=. An &#D displa( is.Option A. monochrome onl(.

Option !. red and reen.

Option C. hih definition.Correct Ans"er is. monochrome onl(.

#$planation. N%&.

Question Number. 1@. An &CD displa( uses "hat t(pe of po"er suppl(?.

Option A. DC oltae.



Option !. Continuous AC.

Option C. +ariable leel DC oltae.

Correct Ans"er is. Continuous AC.

#$planation. N%&.

Question Number. 1;. A beam deflection on #3%* displa(s are.Option A. electrostatic.

Option !. electromanetic.

Option C. solid state.Correct Ans"er is. electromanetic.

#$planation. Aircraft %nstruments and %nterated *(stems #) allett ae ;=.

Question Number. 2. The suppl( to an &CD is.

Option A. AC.

Option !. current restricted DC.Option C. oltae restricted DC.

Correct Ans"er is. AC.

#$planation. N%&.

Question Number. 1. An &#D "ill emit liht "hen.Option A. it is reerse biased.

Option !. either for"ard or reerse biased if a sufficient leel of ac oltae is applied.

Option C. it is for"ard biased.

Correct Ans"er is. it is for"ard biased.#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae 11.

Question Number. . A CT displa( has the adantae oer an &CD displa( of a.

Option A. brihter clearer output.

Option !. more ener( efficient.Option C. lare ie"in anle.

Correct Ans"er is. lare ie"in anle.

#$planation. N%&.

Question Number. 0. To displa( a circle on a CT (ou use.

Option A. suare "ae ;2 derees out of phase.Option !. sine "aes 1@2 derees out of phase.

Option C. sine "aes ;2 derees out of phase.

Correct Ans"er is. sine "aes ;2 derees out of phase.#$planation. N%&.

Question Number. 5. To deflect the beam of a CT hori>ontall(, coils are placed on the nec6 of

the tube.

Option A. each side.



Option !. top and bottom.

Option C. one on the side, one at the bottom.

Correct Ans"er is. top and bottom.

#$planation. N%&.

Question Number. 9. %f the manetic deflection plates produce a manetic field "hich is parallel to the hori>ontal then the trace is deflected in.

Option A. circular motion.

Option !. hori>ontal a$is.Option C. ertical a$is.

Correct Ans"er is. ertical a$is.

#$planation. N%&.

Question Number. <. The most common CT control for an #3%* s(stem screen

is.Option A. a combined s(stem.

Option !. an electrostatic s(stem.

Option C. an electromanetic s(stem.Correct Ans"er is. a combined s(stem.

#$planation. !oein =9= -- 05//22 pae @ pararaph 7 #AD%B, *ection B........'%t the CTB

utili>es manetic deflection and electrostaic focus control.

Question Number. =. &.#.D.s can ie.

Option A. hih definition displa(s.Option !. monochrome displa(s onl(.

Option C. red and reen displa(s onl(.

Correct Ans"er is. monochrome displa(s onl(.#$planation. N%&.

Question Number. @. At lo" ambient temperatures, an &CD screen.

Option A. is slo"er to update as data chanes.

Option !. ie"in anle becomes larer.Option C. loses contrast.

Correct Ans"er is. is slo"er to update as data chanes.

#$planation. N%&.

Question Number. ;. Colour CT shado" mas6 screen resolution is.

Option A. 522 lines per suare inch.Option !. @5 triads.

Option C. <22 lines per scan.

Correct Ans"er is. @5 triads.#$planation. *ee httpE88""".leserice.com8monterms.html for definition of resolution pi$els per

inchB and triads. The actual fiure of @5 is irreleant as there are man( different CT resolutionsB. The

uestion is as6in "hether (ou 6no" the definition of resolution. httpE88""".leserice.com



Question Number. 02. An &CD displa(.

Option A. has three colours onl(.Option !. is monochrome.

Option C. has infinite colours.

Correct Ans"er is. has three colours onl(.#$planation. An &CD displa( uses onl( red, reen and blue filters. !( mi$in them, it can et

different colours, but not an infinite amount.

Question Number. 01. A semented confiuration for the displa( of alphanumeric data

reuires.Option A. the starburst displa( for numbers and lo"er case letters onl(.

Option !. 1< sements to displa( the full rane of capital letters and numerals.

Option C. at least 10 sements for all upper and lo"er case letters.

Correct Ans"er is. 1< sements to displa( the full rane of capital letters and numerals.#$planation. N%&.

Question Number. 0. #lectronic CT beam displa( is used t(picall( in.

Option A. "eather radar indicators.

Option !. %: control displa( units.Option C. distance measurin indicators diital counters.

Correct Ans"er is. "eather radar indicators.

#$planation. N%&.

Question Number. 00. %n a colour cathode ra( tube, ho" is the phosphor arraned in the

tube.Option A. A sinle phosphor la(er containin red, reen and blue.

Option !. A red la(er on the front "ith t"o reen la(ers behind it.

Option C. &a(ers of red, blue and reen.Correct Ans"er is. A sinle phosphor la(er containin red, reen and blue.

#$planation. *uccess in #lectronics !( Tom Duncan p@9.

Question Number. 05. A colour &CD "hich is bac6 lit has.

Option A. three colours.

Option !. monochrome.Option C. an infinite amount of colours.

Correct Ans"er is. three colours.

#$planation. &CDs hae 0 colours 7!B "hich can be blended to ma6e other colours of limitednumberB.

Question Number. 09. A dot matri$8&#D construction is.

Option A. 5I= or a ;I9 rollin end displa(.

Option !. 9I; or a 5I= rollin end displa(.



Option C. 5I= or a 9I= rollin end displa(.

Correct Ans"er is. 5I= or a ;I9 rollin end displa(.

#$planation. Aircraft %nstruments and %nterated *(stems allett aes 10 / 19 Althouh, in the real

"orld, others are aailable tooB.

Question Number. 0<. What are the adantaes of an &CD displa( oer an &#D?.Option A. %t is brihter.

Option !. %t uses less current.

Option C. There are no adantaes.Correct Ans"er is. %t uses less current.

#$planation. N%&.

Question Number. 0=. A seen sement displa( is used to.

Option A. displa( alpha/numeric characters.

Option !. displa( octal and decimal numbers onl(.Option C. displa( octal and binar( numbers onl(.

Correct Ans"er is. displa( octal and decimal numbers onl(.

#$planation. N%&. httpE88ideo/euipment.lobalspec.com8&earn-ore8+ideoM%mainM#uipment8-etersMeadoutsM%ndicators8Diita

lM&#DMDispla(

Question Number. 0@. )o" are Alphanumeric Displa(s produced on a CT?.

Option A. !( *tro6e pulse.

Option !. aster scannin.Option C. b( the use of 4 #- Coils.

Correct Ans"er is. !( *tro6e pulse.

#$planation. N%&.

Question Number. 0;. The *horter lead near the 3lat portion of an &#D is the.Option A. Cathode.

Option !. Anode.

Option C. 7ate.Correct Ans"er is. Cathode.

#$planation. N%&.

Question Number. 52. *ubmarinin' is.

Option A. caused b( the inabilit( of some &CD screens to respond to fast moin imaes on

screen.Option !. a CT screen defect "hich can usuall( be remedied b( deaussin the screen.

Option C. the process used to form liuid cr(stals into a flat screen.

Correct Ans"er is. caused b( the inabilit( of some &CD screens to respond to fast moin imaeson screen.

#$planation. N%&. httpE88""".fpc.fuLitsu.com8"""8pen"orld8technolo(.shtml?lossar(



05.1". Electrostatic Sensiti'e De'ices.

Question Number. 1. #*D* bas are sealed b(.Option A. #*D* labels.

Option !. >ip loc6s.

Option C. t"ine 122P cottonB.Correct Ans"er is. t"ine 122P cottonB.

#$planation. !oein manual sa(s 122P cotton t"ine. Other manuals sa( #*D* label. )o"eer, it

could be considered that #*D* labels do not 'seal'.

Question Number. . What precautions are reuired "hen remoin #*D*euipment?.

Option A. Wear a "rist strap connected to an approed round point.

Option !. No special precautions are reuired.

Option C. Jeep one hand on the airframe.Correct Ans"er is. Wear a "rist strap connected to an approed round point.

#$planation. N%&.

Question Number. 0. A fliht dec6 CT &: is bein replaced. What does the #*D* label

indicate?.Option A. Wrist straps should be "orn.

Option !. Do not touch plu pins or leae them e$posed.

Option C. emoe po"er before connectin.

Correct Ans"er is. Do not touch plu pins or leae them e$posed.#$planation. *ee allet's -icro #lectronics %n Aircraft *(stems or CAA%s ;/5 para.=.1.0.

Question Number. 5. Durin an #3%* screen fit.

Option A. dont touch terminals.

Option !. no toolin is reuired.Option C. use bondin strap.

Correct Ans"er is. dont touch terminals.

#$planation. N%&.

Question Number. 9. With a relatie humidit( of 12P to 2P, if (ou "al6ed oer a carpet

"hat electrostatic oltae alue "ould (ou e$pect to see?.Option A. 09,222 olts.

Option !. <,222 olts.

Option C. 1,222 olts.Correct Ans"er is. 09,222 olts.

#$planation. N%&.

Question Number. <. !efore fittin a rinted Circuit !oard (ou should chec6

the.



Option A. resistance bet"een s6in and strap end plu is less than 12 meohms.

Option !. resistance bet"een s6in and strap end plu is more than 1 meohms.

Option C. resistance bet"een strap and strap end plu is less than 1 meohms.

Correct Ans"er is. resistance bet"een strap and strap end plu is less than 1 meohms.#$planation. CAA% &eaflet ;/5 9.0.1.

Question Number. =. The resistance of the "rist strap used as part of anti static precautions

should be.

Option A. 2 / 22 ohm.Option !. 2 meohm / 22 meohm.

Option C. 92 6ilohm / 1.9 meohm.

Correct Ans"er is. 92 6ilohm / 1.9 meohm.#$planation. CAA%s &eaflet ;/5 9.0.1.

Question Number. @. When handlin C!'s labelled #*D*, "hat precaution areta6en?.

Option A. Do not touch its pins as copper contamination can occur.

Option !. %solate electrical po"er before installin on Aircraft.Option C. 3irst earth "ith aircraft then to it.

Correct Ans"er is. %solate electrical po"er before installin on Aircraft.

#$planation. -icroelectronics in Aircraft *(stems. allett. ae 1;.

Question Number. ;. After attachin a "rist strap to (our "rist "hich is connected to aircraft

roundB, prior to remoal of #*D* euipment, the resistance measured.Option A. bet"een (our s6in and the pin round must be 1 meohms.

Option !. bet"een the strap and the pin round must be R1 meohms.

Option C. bet"een the strap and the pin round must be 1 -eohms.Correct Ans"er is. bet"een the strap and the pin round must be 1 -eohms.

#$planation. Ans"er found in !oein *W-. 2/51/21 0B eB )old the red lead of the testB meter

bet"een the forefiner and the thumb. The acceptable rane is less than 12,222,222 ohms. &o"er limitof rane ho"eer seems to ar(. This reference sa(s 2.; -S, but if an(one has a more definitie

reference, please send it in.

Question Number. 12. Which of the follo"in #*D* deices can "ithstand hiher static

electricit( oltae?.

Option A. -O*3#T.Option !. *C.

Option C. #C&.

Correct Ans"er is. *C.#$planation. N%&.

Question Number. 11. A "rist band must be "orn "hen "or6in "ith #*D* deices.

Option A. to dissipate and preent static build/up on the operator.

Option !. to preent the operator from ettin an electric shoc6.



Option C. to dissipate static chare on the deice.

Correct Ans"er is. to dissipate and preent static build/up on the operator.

#$planation. N%&.

Question Number. 1. A humid atmosphere.

Option A. reduces static chare.Option !. eliminates static chare.

Option C. has no effect on the leel of chare.

Correct Ans"er is. reduces static chare.#$planation. N%&.

Question Number. 10. #lectrostatic dischare occurs "hen.

Option A. the round lead on a "rist strap touches the s6in.

Option !. materials are rubbed toether or pulled apart.

Option C. materials of different potential are brouht in close pro$imit( to each other.Correct Ans"er is. materials of different potential are brouht in close pro$imit( to each

other.

#$planation. N%&.

Question Number. 15. !efore remoin an assembl( from an aircraft, "ith reards to )%3, (oumust first ensure that there is minimum current flo" bet"een.

Option A. the assembl( and the aircraft.

Option !. (ou and the assembl(.

Option C. (ou and the aircraft.Correct Ans"er is. (ou and the assembl(.

#$planation. N%&.

Question Number. 19. When remoin a C card from an #*D* assembl( ensure a lo" current

path bet"een.Option A. aircraft and round.

Option !. (ou and the assembl(.

Option C. (ou and the aircraft.Correct Ans"er is. (ou and the aircraft.

#$planation. N%&.

05.1%. So2t3are Manageent &ontrol.

Question Number. 1. An aircraft s(stem that, should it fail due to a soft"are error, "ould causea sinificant reduction in safet( marins ma( also cause.

Option A. no inLuries to occupants.

Option !. inLuries to some occupants.Option C. the loss of the aircraft.

Correct Ans"er is. inLuries to some occupants.

#$planation. DO/1=@8#D/1 or the old AWN 59 no remoed8replacedB.



Question Number. . An aircraft s(stem allocated a soft"are leel of C that, should it fail due

to a soft"are error, ma( cause.Option A. inLuries to some occupants.

Option !. inLuries to a lare proportion of occupants.

Option C. no inLuries to occupants.Correct Ans"er is. inLuries to some occupants.

#$planation. DO/1=@8#D/1 or the old AWN 59 no remoed8replacedB. Do"nload a cop( from the

Tutorial *upport forums.

Question Number. 0. An aircraft s(stem allocated a Criticalit( Cateor( of )a>ardous has a*oft"are &eel of.

Option A. A.

Option !. !.

Option C. C.Correct Ans"er is. !.



Question Number. 5. An aircraft s(stem that, should it fail due to a soft"are error, "ould causea sliht increase in cre" "or6load, has a soft"are leel of.

Option A. D.

Option !. !.

Option C. C.Correct Ans"er is. D.



Question Number. 9. An aircraft s(stem "ith a soft"are leel of D, should it fail due to asoft"are error, ma( cause the aircraft safet( marin to be.

Option A. slihtl( decreased.

Option !. slihtl( increased.Option C. sinificantl( decreased.

Correct Ans"er is. slihtl( decreased.



Question Number. <. %f due to a soft"are error in an aircraft s(stem that "ould cause inLuriesto some of the occupants, the s(stem has a soft"are criticalit( cateor( of.

Option A. maLor effect.

Option !. ha>ardous effect.Option C. minor effect.

Correct Ans"er is. maLor effect.





Question Number. =. An aircraft s(stem that, should it fail due to a soft"are error, "ould causeno inLuries to occupants, has a criticalit( cateor( of.

Option A. maLor effect.

Option !. minor effect.Option C. ha>ardous effect.

Correct Ans"er is. minor effect.

#$planation. DO/1=@8#D/1 or the old AWN 59 no remoed8replacedB. Do"nload a cop( from theTutorial *upport forums.

Question Number. @. euirements for soft"are control can be found in.

Option A. A AWO.

Option !. AWN 50.

Option C. A O*.Correct Ans"er is. AWN 50.

#$planation. Old AWN 50 3ield &oadable *oft"areB has been deleted at issue 100. No" see

TCA8#:OCA# document Do/1=@8#D/1.

Question Number. ;. *oft"are can be modified b(.Option A. the manufacturer.

Option !. usin the same rules as appl( as to modifications to hard"are.

Option C. licensed aionics enineers.

Correct Ans"er is. usin the same rules as appl( as to modifications to hard"are#$planation. N%&.

Question Number. 12. Who is responsible for producin the operational proram of the

3-*?.

Option A. The manufacturer.Option !. The pilot.

Option C. The enineer.

Correct Ans"er is. The manufacturer.#$planation. N%&.

Question Number. 11. *oft"are documentation procedures are laid do"n in.Option A. -O#.

Option !. AA Ops.

Option C. AWN 59B.Correct Ans"er is. AWN 59B.

#$planation. AWN 59 has been deleted at issue 100. No" see TCA8#:OCA# document Do/

1=@8#D/1.

Question Number. 1. Control of soft"are is carried out b(.



Option A. the aircraft manufacturers.

Option !. a licensed enineer.

Option C. the National Aiation Authorit(.

Correct Ans"er is. the National Aiation Authorit(.#$planation. Old AWN 59.

Question Number. 10. What is the definition of leel one soft"are?.

Option A. Non/essential.

Option !. #ssential.Option C. Critical.

Correct Ans"er is. Critical.

#$planation. No" see TCA8#:OCA# document Do/1=@8#D/1.

Question Number. 15. Who can sin for a soft"are update?.

Option A. Desin orani>ation or the aircraft manufacturer.Option !. #nineer.

Option C. Chief pilot.

Correct Ans"er is. #nineer.#$planation. Old AWN 50. No" see TCA8#:OCA# document Do/1=@8#D/1.

Question Number. 19. What is the effect of a leel 1 soft"are failure?.

Option A. *inificant reduction in safet( marins.

Option !. &are reduction in safet( marins.

Option C. &oss of aircraft and 8 or fatalities.Correct Ans"er is. &oss of aircraft and 8 or fatalities.


Question Number. 1<. *oft"are chanes come under the responsibilit( of.

Option A. the enineer.Option !. the national aiation authorit(.

Option C. the aircraft constructor.

Correct Ans"er is. the aircraft constructor.#$planation. AWN 59. No" see TCA8#:OCA# document Do/1=@8#D/1.

Question Number. 1=. Who can desin ne" soft"are?.Option A. !CA section A@ approed compan(.

Option !. !CA section A1 approed compan(.

Option C. The CAA.Correct Ans"er is. !CA section A@ approed compan(.

#$planation. AWN59a para 0.1.0 !CA section A sub section A@B. No" see TCA8#:OCA#

document Do/1=@8#D/1.

Question Number. 1@. As far as a soft"are product is concerned.



Option A. the '*oft"are elease' phase is the same as the '3inished roduct' phase.

Option !. the '+alidation' phase is done to the soft"are rather than to the component.

Option C. the '+erification' phase includes performance testin a prorammed #O-.

Correct Ans"er is. the '+erification' phase includes performance testin a prorammed#O-.


Question Number. 1;. AWN 50 reuires that.

Option A. the aircraft operator be responsible for soft"are assessment.Option !. the CAA be responsible for soft"are assessment.

Option C. the aircraft constructors be responsible for soft"are assessment.

Correct Ans"er is. the aircraft constructors be responsible for soft"are assessment.#$planation. No" see TCA8#:OCA# document Do/1=@8#D/1.

Question Number. 2. &eel 1 soft"are failure.Option A. is defined as essential and "ill reduce safet( marins.

Option !. is defined as essential and ma( hae a minor effect.

Option C. is defined as critical and can lead to loss of aircraft.Correct Ans"er is. is defined as critical and can lead to loss of aircraft.


Question Number. 1. euirements for confiuration manaement of soft"are can be found

in.

Option A. AWN 50.Option !. A Ops -B.

Option C. ATA Chapter 5<, %nformation *(stems.

Correct Ans"er is. AWN 50.#$planation. No" see TCA8#:OCA# document Do/1=@8#D/1.

Question Number. . Where "ould (ou find the rules reardin uprade of

soft"are?.

Option A. A O*.Option !. The aircraft manufacturer.

Option C. AWN 50.

Correct Ans"er is. AWN 50.


05.1(. Electroagnetic En'ironent.

Question Number. 1. %n order to maintain )%3 protection, bondin chec6s bet"een airframe

and electrical components carr(in oltaes reater than 92 olts -* or DC or main earth returnshould not e$ceed.

Option A. 2.29 ohm.

Option !. 1 ohm.



Option C. 1 meohm.

Correct Ans"er is. 1 ohm.

#$planation. CAA%s &eaflet ;/1 Table 1.

Question Number. . ibbon cables effected b( mutual impedance and current loop lea6ae

should be protected b(.Option A. earthin each alternatie conductor to separate point.

Option !. connectin all conductors to a common earth.

Option C. shieldin each indiidual conductor.Correct Ans"er is. earthin each alternatie conductor to separate point.

#$planation. N%&.

Question Number. 0. To shield a fibre optic from #-% (ou must.

Option A. earth both transducer and couplins.

Option !. shield it "ith a braided shield.Option C. use an opto/isolator.

Correct Ans"er is. use an opto/isolator.

#$planation. N%&.

Question Number. 5. -anufacturers of aircraft can ensure )%3 protection b(.Option A. adisin operators of all points susceptible to deterioration due to corrosion, moisture

inress, fle$in etc.

Option !. desinin specific aionic areas that are shielded aainst )%3.

Option C. ensurin all sinle "ires are shielded "ith metal conduit.Correct Ans"er is. desinin specific aionic areas that are shielded aainst )%3.

#$planation. :nderstandin )%3 !( 7erald &. 3uller.

Question Number. 9. Which of the follo"in could be a primar( cause of )%3 protection

failure?.Option A. !ro6en or missin static "ic6s.

Option !. Corrosion on bondin leads.

Option C. :nsericeable radio filters.Correct Ans"er is. :nsericeable radio filters.


Question Number. <. -anufacturers of aircraft can ensure )%3 protection.

Option A. b( desinin specific aionic areas that are shielded aainst )%3.

Option !. b( ensurin all sinle "ires are shielded "ith metal conduit.Option C. b( adisin the operator of parts of the aircraft susceptible to deradation due to

corrosion, moisture inress, fle$in etc.

Correct Ans"er is. b( desinin specific aionic areas that are shielded aainst )%3.#$planation. :nderstandin )%3 !( 7erald &. 3uller.



Question Number. =. )%3 protection of &:s is proided b(.

Option A. internall( shielded cables.

Option !. built in filters and oeroltae circuits.

Option C. built in filters onl(.Correct Ans"er is. built in filters and oeroltae circuits.


Question Number. @. To stop earth loops formin, (ou "ould.

Option A. earth both ends of the cable screen.Option !. leae both ends of the cable screen open circuit.

Option C. earth onl( one end of the cable screen.

Correct Ans"er is. earth onl( one end of the cable screen.#$planation. N%&. httpE88"""1.electusdistribution.com.au8imaesMuploaded8humloop.pdf

Question Number. ;. An aircraft ma( hae been )%3 affected.Option A. A bondin load chec6 is reuired.

Option !. A static "ic6 chec6 is reuired.

Option C. Test all radio freuencies for interference.Correct Ans"er is. A static "ic6 chec6 is reuired.


Question Number. 12. Testin of )%3 on aircraft s(stems is done.

Option A. b( periodicall( listenin for interference on all s(stems.

Option !. at and durin production and testin initial certificationB.Option C. onl( after a report of radio interference.

Correct Ans"er is. at and durin production and testin initial certificationB.


Question Number. 11. When carr(in out a bondin chec6 on a surface protected b( anodicfilm.

Option A. the film is conductie so no preparations are reuired.

Option !. the anodic film should be remoed locall( to ensure a ood contact.Option C. add a bondin factor to the result of the test to account for the resistance of the anodic

film.

Correct Ans"er is. the anodic film should be remoed locall( to ensure a ood contact.

#$planation. N%&.

Question Number. 1. When clampin cable looms containin co/a$ial cables.Option A. aoid distortion to the co/a$ial cable to maintain the dielectric constant.

Option !. the clamps must be no more than 1 metre apart.

Option C. distortion of the outer sheath is allo"ed proidin the inner cable is not affected.Correct Ans"er is. aoid distortion to the co/a$ial cable to maintain the dielectric constant.

#$planation. N%&.



Question Number. 10. When incorporatin an aerial cable it must be.

Option A. in the centre of the other "ires.

Option !. outside the other "ires for eas( access.Option C. positioned separatel( from the loom.

Correct Ans"er is. positioned separatel( from the loom.

#$planation. N%&.

Question Number. 15. When carr(in out airframe bondin chec6s as part of a proram of)%3 preention the airframe bondin resistance should be less than.

Option A. 122 milliohms.

Option !. 1 ohm.Option C. 92 milliohms.

Correct Ans"er is. 92 milliohms.

#$planation. CAA% &eaflet ;/1.

Question Number. 19. #lectromanetic compatibilit( is achieed b(.

Option A. shieldin, screenin, earthin, bondin and interference filters.Option !. coatin in a conductie paint.

Option C. enclosin the s(stem "ith same freuenc( and strenth of "hich screenin is

done.Correct Ans"er is. shieldin, screenin, earthin, bondin and interference filters.

#$planation. N%&.

Question Number. 1<. To reduce )%3 on radio euipment.

Option A. ensure all static "ic6s are in place.

Option !. periodicall( chec6 bondin leads for condition.Option C. transmit on all radio freuencies to determine "hich freuencies are causin the

interference.

Correct Ans"er is. ensure all static "ic6s are in place.#$planation. N%&.

Question Number. 1=. 3or braided cables, the amount of braidin.

Option A. must conform to the reuirement for the shieldin to coer at least 92P of the surface of

the cable.

Option !. 6eeps radiated po"er inside the emittin assembl( or a"a( from the susceptiblecircuit.

Option C. is a trade/off desin feature.

Correct Ans"er is. 6eeps radiated po"er inside the emittin assembl( or a"a( from the susceptiblecircuit.

#$planation. N%&.

Question Number. 1@. )%3 is acron(m for.

Option A. )eail( %onised adio 3reuencies.



Option !. )ih %ntensit( adiated 3ield.

Option C. )ih %ntensit( adio 3reuencies.

Correct Ans"er is. )ih %ntensit( adiated 3ield.

#$planation. N%&.

Question Number. 1;. )3 aerials are protected aainst lihtnin stri6e b(.Option A. current mode coupler.

Option !. bus terminal.

Option C. spar6 ap.Correct Ans"er is. spar6 ap.

#$planation. N%&.

05.15. T!+ical Electronic4Digital Aircra2t S!stes .

Question Number. 1. An 3-* s(stem, besides controllin naiation, thrust and auto/na, also proides.

Option A. 7W* "arnins.

Option !. dedicated status and "arnins.Option C. ta6e/off and landin "arnins.

Correct Ans"er is. dedicated status and "arnins.

#$planation. The 3-* is not used for Ta6e Off or &andin The 7W* "arnins come from the7W* Computer.

Question Number. . The minimum standards for aircraft instrumentation is set b(.

Option A. CAA.

Option !. %CAO.Option C. AA.

Correct Ans"er is. AA.

#$planation. N%&.

Question Number. 0. #AD% s6( and round displa( is proided b(.Option A. raster scan.

Option !. stro6e pulse.

Option C. s(nthetic T+ sinals.

Correct Ans"er is. raster scan.#$planation. allett / Aircraft %nstruments ae 02 3i. 1.9.

Question Number. 5. )*% headin is alid if the headin fla is.

Option A. in ie".

Option !. reen.Option C. out of ie".

Correct Ans"er is. out of ie".

#$planation. Warnin flas 'in ie"' indicate failure. Normall( the onl( coloured fla used is #D,



indicatin failure.

Question Number. 9. -3D is the abbreiation for.Option A. -ulti function displa(.

Option !. -andator( fliht displa(.

Option C. -aster fliht displa(.Correct Ans"er is. -ulti function displa(.

#$planation. N%&.

Question Number. <. A TCA* uses the radar mile definition in its calculations, "hich

is.Option A. 1.0< microsecond.

Option !. <.1@ microsecond.

Option C. 5.= microsecond.

Correct Ans"er is. 1.0< microsecond.#$planation. N%&. httpE88""".atis.or8t68MradarMmile.html

Question Number. =. 7* naiation uses a constellation of satellites that is made up

of.

Option A. 1 actie and 0 spare.Option !. @ actie and = spare.

Option C. 0 actie and 9 spare.

Correct Ans"er is. 1 actie and 0 spare.

#$planation. N%&.

Question Number. @. An %* is onl( certifed for alinment up to.Option A. G@@.59 and /@@.59 derees.

Option !. [email protected] and /[email protected] derees.

Option C. G<2 and /<2 derees.Correct Ans"er is. [email protected] and /[email protected] derees.

#$planation. N%&.

Question Number. ;. The command bars on an AD% relate to.

Option A. roll indications.

Option !. path bein follo"ed.Option C. path reuired.

Correct Ans"er is. path reuired.

#$planation. allett / Aircraft %nstruments ae 1.

Question Number. 12. #CA- has at its heart.Option A. a multi function s(mbol enerator.

Option !. a central maintenance computer.

Option C. ACA*.



Correct Ans"er is. a multi function s(mbol enerator.

#$planation. N%&.

Question Number. 11. The recordin medium in an 3D is.

Option A. copper foil coated "ith ferrite.

Option !. a hih densit( flopp( disc.Option C. manetic tape coated "ith ferrite.

Correct Ans"er is. manetic tape coated "ith ferrite.

#$planation. N%&.

Question Number. 1. An 3-* databan6 memor( is updated.Option A. eer( 0<9 da(s.

Option !. eer( @ da(s.

Option C. eer( 0 da(s.

Correct Ans"er is. eer( @ da(s.#$planation. N%&.

Question Number. 10. What does the CADC feed?.

Option A. cabin pressure controller sensor 8 machmeter 8 altimeter.

Option !. Altimeter 8 3-* 8 secondar( radar.Option C. standb( altimeter 8 machmeter.

Correct Ans"er is. cabin pressure controller sensor 8 machmeter 8 altimeter.

#$planation. allett / Aircraft %nstruments ae 1=; 3i. =.1.

Question Number. 15. %n a 3liht -anaement *(stem 3-*B, data is input manuall( to the

computin s(stem throuh the.Option A. Data Acuisition :nit.

Option !. #lectronic Centralised Aircraft -onitorin control panel.

Option C. Control and Displa( :nit.Correct Ans"er is. Control and Displa( :nit.

#$planation. N%&.

Question Number. 19. %n a 7lobal ositionin *(stem 7*B, the number of satellites reuired

to achiee a 0 dimensional fi$ is.

Option A. .Option !. 0.

Option C. 5.


Question Number. 1<. %n a 7lobal ositionin *(stem 7*B, each satellite transmission

identifies the satellite usin a.

Option A. different channel freuenc(.



Option !. pseudo random code.

Option C. "hisper shout method.

Correct Ans"er is. pseudo random code.

#$planation. N%&.

Question Number. 1=. %n a 7lobal ositionin *(stem 7*B satellites belo" the -as6 Anleare inored as these ma( cause.

Option A. rane errors.

Option !. cloc6 errors.Option C. ephemeris errors.

Correct Ans"er is. rane errors.

#$planation. N%&.

Question Number. 1@. %nformation reuired b( a 3liht -anaement *(stem 3-*B to function

correctl( is indicated on the displa( b(.Option A. dashes.

Option !. a flashin cursor.

Option C. bo$es.Correct Ans"er is. bo$es.

#$planation. N%&.

Question Number. 1;. A fliht data recorder can obtain information from aircraft

instruments.

Option A. proided there is adeuate dampin.Option !. proided there is adeuate isolation.

Option C. b( direct connection to the instruments.

Correct Ans"er is. proided there is adeuate isolation.#$planation. N%&.

Question Number. 2. The inputs and outputs of a CADC are.

Option A. pitot and static in altitude, attitude, CA* and +* out.

Option !. pitot and static in altitude, CA*, mach and +* out.Option C. pitot in static, altitude, mach, CA* and +* out.

Correct Ans"er is. pitot and static in altitude, CA*, mach and +* out.

#$planation. N%&.

Question Number. 1. #%CA* proides the follo"inE.

Option A. #nine parameters and enine "arnins onl(.Option !. #nine parameters and s(stem "arnins onl(.

Option C. #nine parameters onl(.

Correct Ans"er is. #nine parameters and s(stem "arnins onl(.#$planation. allett / Aircraft %nstruments ae 1=; 3i. =.1.



Question Number. . A central maintenance computer proides.

Option A. round and fliht monitorin and testin on an on/board computer.

Option !. round and !%T# testin usin a portable control panel.

Option C. displa( of s(stem "arnins and cautions.Correct Ans"er is. round and fliht monitorin and testin on an on/board computer.

#$planation. N%&.

Question Number. 0. The risin run"a( is positioned from information deried

from.Option A. barometric heiht.

Option !. radio altimeter.

Option C. ertical speed.Correct Ans"er is. radio altimeter.

#$planation. !oein -aintenance Trainin notes for !=9=.

Question Number. 5. Where are the Diital 3liht Data ecorder outputs supplied

to?.

Option A. The recordin unit.Option !. There are no outputs.

Option C. 3liht instruments.

Correct Ans"er is. There are no outputs.#$planation. %nformation recorded in the D3D is onl( accessable in the shop.

Question Number. 9. 3-* failure and "arnins are.Option A. #3%* "arnins onl(.

Option !. displa(ed on #%CA*.

Option C. enine "arnins onl(.Correct Ans"er is. displa(ed on #%CA*.

#$planation. 3-* "arnins are displa(ed on #%CA* and #3%*, but the ans"ers ien are '#%CA*' or

'#3%* onl(' so for the purposes of this uestion the correct ans"er is #%CA*.

Question Number. <. 3liht director command bars are moed to the correct position b(.

Option A. calibration.

Option !. position feedbac6.

Option C. amplifier ain.Correct Ans"er is. position feedbac6.

#$planation. N%&.

Question Number. =. What information is reuired before completion of the alinment of an

%nertial Naiation *(stem?.Option A. Aircraft present position.

Option !. )eadin and attitude.

Option C. Aircraft present position and headin.



Correct Ans"er is. Aircraft present position.

#$planation. N%&.

Question Number. @. %* accelerometers are mounted.

Option A. ;2 to each other.

Option !. 59 to each other.Option C. <2 to each other.

Correct Ans"er is. ;2 to each other.

#$planation. N%&.

Question Number. ;. An 3-* naiation database is updated.Option A. once a month.

Option !. eer( @ da(s.

Option C. at the operators reuest.

Correct Ans"er is. eer( @ da(s.#$planation. N%&.

Question Number. 02. A sinle failure of a fl(/b(/"ire s(stem.

Option A. "ill reduce operational heihts and speeds.

Option !. "ill limit the fliht profile.Option C. has no effect on aircraft operation.

Correct Ans"er is. has no effect on aircraft operation.

#$planation. edundant 3!W s(stems "ill continue to fl( the aircraft.

Question Number. 01. 3l(/b(/"ire load alleiation function in turbulent conditions "ill result

in.Option A. spoilers moin s(mmetricall( up"ards.

Option !. ailerons moin s(mmetricall( up"ards.

Option C. ailerons and spoilers moin s(mmetricall( up"ards.Correct Ans"er is. ailerons and spoilers moin s(mmetricall( up"ards.

#$planation. N%&.

Question Number. 0. 3l(/b(/"ire roll control is achieed b(.

Option A. spoilers and ailerons.

Option !. ailerons.Option C. spoilers.

Correct Ans"er is. spoilers and ailerons.

#$planation. Automatic 3liht Control, allett and Co(le ae ;<.

Question Number. 00. The moement of fl(/b(/"ire control surfaces are.Option A. h(draulicall( controlled and electricall( actuated.

Option !. both electricall( controlled and electricall( actuated.

Option C. electricall( controlled and h(draulicall( actuated.



Correct Ans"er is. electricall( controlled and h(draulicall( actuated.

#$planation. N%&.

Question Number. 05. An 3-* s(stem, besides controllin naiation, thrust and auto/na, also

proides.

Option A. dedicated status "arnins.Option !. ta6e/off and landin "arnins.

Option C. 7W* "arnins.

Correct Ans"er is. dedicated status "arnins.#$planation. N%&.

Question Number. 09. %f an #3%* has 0 s(mbol enerators. What is the purpose of the 0rd

s(mbol enerator?.

Option A. Comparison "ith No.1 s(mbol enerator.

Option !. arit( function.Option C. *tandb(.

Correct Ans"er is. *tandb(.

#$planation. N%&.

Question Number. 0<. 3-* operational proram is updated eer(.Option A. ;2 da(s.

Option !. @ da(s.

Option C. = da(s.

Correct Ans"er is. @ da(s.#$planation. N%&.

Question Number. 0=. An 3D fitted to a helicopter beins recordin.

Option A. "hen po"er is applied to the aircraft.

Option !. on ta6e/off.Option C. on enine start/up.

Correct Ans"er is. on enine start/up.

#$planation. *ee ANO Art 90 para.1.

Question Number. 0@. The 3-* databases consist of.

Option A. one naiation and one performance database.Option !. one performance and t"o naiation databases.

Option C. t"o performance and one naiation database.

Correct Ans"er is. one performance and t"o naiation databases.#$planation. Normall( "e consider the 3-* as hain databases 1 naiational and 1

performanceB. eppesen Aionics 3undamentals ae 0@9B. )o"eer, the Naiational database is split

in t"o. 1 is for eppesen data, uploaded on the round, the other is for pilot input data additional"a(points etc.B. *ee httpE88""".b=0=.or.u68fmc.htm for more.



Question Number. 0;. The 3-* can update the %* position outputs b( usin information from

either.

Option A. +O and D-# onl(.

Option !. 7*, D-#, &OC and +O.Option C. D-# and 7* onl(.

Correct Ans"er is. 7*, D-#, &OC and +O.

#$planation. N%&.

Question Number. 52. The accepted error from %N*8%* is.Option A. 0 miles 8 hour G 0 miles.

Option !. miles per hour G 0 miles.

Option C. 1 mile8hourG0 miles.Correct Ans"er is. 0 miles 8 hour G 0 miles.

#$planation. N%&.

Question Number. 51. !efore an %* can complete the alinment seuence.

Option A. the current present position must be entered.

Option !. either the last or current position must be entered.Option C. the shutdo"n present position must be entered.

Correct Ans"er is. the current present position must be entered.

#$planation. N%&.

Question Number. 5. What "arnins can an 3-* proide?.

Option A. Discrete "arnins.Option !. *purious faults.

Option C. 7round faults onl(.

Correct Ans"er is. Discrete "arnins.#$planation. This means it can "arn of inoperatie euipment, but not "hen euipment is proidin

incorrect data.

Question Number. 50. #lectronic Centralised Aircraft -onitorin *(stem.

Option A. performs in/fliht and round tests of aircraft s(stems b( carr(in out a !%T#interroation.

Option !. performs in/fliht !%T# interroation onl(.

Option C. ie red "arnins and amber cautions to displa( s(stem status.

Correct Ans"er is. ie red "arnins and amber cautions to displa( s(stem status.#$planation. N%&.

Question Number. 55. The control of the speed or rate that the fliht director command bars

moe can be controlled b(.

Option A. position feedbac6.Option !. rate or elocit( feedbac6.

Option C. amplifier ain.

Correct Ans"er is. rate or elocit( feedbac6.



#$planation. N%&.

Question Number. 59. The Centralised Aircraft -onitorin *(stem uses the maintenance modeof operation.

Option A. on the round onl(.

Option !. in the air onl(.Option C. either in the air or on the round.

Correct Ans"er is. on the round onl(.

#$planation. Aircraft #lectricit( and #lectronics, #ismin, 9th #dition ae 09;.

Question Number. 5<. The third #3%* *(mbol 7enerator is operated.Option A. in an emerenc(.

Option !. "ith #%CA*.

Option C. as a standb( to the No1 and No s(stem.

Correct Ans"er is. as a standb( to the No1 and No s(stem.#$planation. N%&.

Question Number. 5=. #3%* displa(s of the riht hand and left hand displa(s are compared b(

comparators in the.

Option A. 3-*.Option !. #%CA*.

Option C. *(mbol 7enerators.

Correct Ans"er is. *(mbol 7enerators.

#$planation. N%&.

Question Number. 5@. What is the appro$imate earth rate?.Option A. 128hour.

Option !. 98hour.

Option C. 198hour.Correct Ans"er is. 198hour.

#$planation. Aircraft %nstruments and %nterated *(stems. allett ae 12.

Question Number. 5;. An %* has.

Option A. t"o or three accelerometers dependin on the s(stem.

Option !. three accelerometers.Option C. t"o accelerometers.

Correct Ans"er is. three accelerometers.

#$planation. eppesen Aionics 3undamentals ae 10=.

Question Number. 92. %* &aser in 7(ros proide.Option A. rate of moement about an a$is.

Option !. displacement about an a$is.

Option C. both rate and displacement about an a$is.



Correct Ans"er is. rate of moement about an a$is.


Question Number. 91. What are the outputs of a Diital ADC?.

Option A. TA*, -AC), Altitude and TAT.

Option !. TA*, -AC), Altitude, TAT and *AT.Option C. TA*, -AC) and Altitude.

Correct Ans"er is. TA*, -AC), Altitude, TAT and *AT.

#$planation. !oth *tatic and Total Air Temperatures are outputs of a diital ADC.

Question Number. 9. 3l( !( Wire s(stems in the full( actie mode, the actuators"ill.

Option A. both be actie.

Option !. both be in dampin mode, a"aitin control inputs.

Option C. one in actie mode, one in dampin mode.Correct Ans"er is. both be actie.

#$planation. ef to !=== and A002 manuals, the term actie mode "ill al"a(s be associated "ith

full( operational of redundanc( of all actuators or sero controls. This means, each primar( flihtcontrol surfaces' actuators either or 0 actuators confiuration desined to proide full(/po"ered

controls that suit the si>e and purpose of surfacesB are actuall( actie on all phases. %f an( failure

occurs, the failed actuator "ill then reert to 'dampin' mode, becomin slae to remainin actieactuators.

Question Number. 90. On a 3l( !( Wire s(stem, "hat controls the stab trim?.Option A. #&AC and *#C.

Option !. *#C.

Option C. #&AC.Correct Ans"er is. #&AC and *#C.

#$planation. #&AC H #leator Aileron Computer, *#C H *poilers #leator Computer and 3AC H

3liht Aumentation Computers rudderB.

Question Number. 95. The minimum reuirement for a coc6pit oice recorder to beinoperatin is.

Option A. on enine start/up.

Option !. on commencin the ta6eoff roll.

Option C. once established in the en/route climb.Correct Ans"er is. on enine start/up.

#$planation. A Ops states that the C+ must bein "hen the aircraft is capable of moin under

its o"n po"er.

Question Number. 99. Aircraft Communications Addressin and eportin *(stems is usedto.

Option A. do"nload aircraft status reports.

Option !. ma6e telephone calls.



Option C. allo" the pilot of an aircraft to tal6 to base.

Correct Ans"er is. do"nload aircraft status reports.

#$planation. N%&.

Question Number. 9<. !/NA+ s(stem must be capable of.

Option A. holdin si$ "a(points.Option !. displa(in distance and bearin to "a(point.

Option C. reersin the "a(points for.

Correct Ans"er is. displa(in distance and bearin to "a(point.#$planation. N%&.

Question Number. 9=. The basic principle of radar is based upon.

Option A. the amount of po"er in the sinal returned.

Option !. the time dela( bet"een out"ard and returnin pulse.

Option C. ultrasonic "ae propaation.Correct Ans"er is. the time dela( bet"een out"ard and returnin pulse.

#$planation. N%&.

Question Number. 9@. What s(stems does the ADC feed?.

Option A. Altimeter 8 3-* 8 secondar( radar.Option !. Cabin pressure controller sensor 8 machmeter 8 Altimeter.

Option C. *tandb( altimeter8machmeter.

Correct Ans"er is. Cabin pressure controller sensor 8 machmeter 8 Altimeter.

#$planation. N%&.

Question Number. 9;. Which s(stems does a modern ADC ie information to?.Option A. #3%*.

Option !. #%CA*.

Option C. 3liht control computer, Air Data %nstrument, #nine s(stems.Correct Ans"er is. 3liht control computer, Air Data %nstrument, #nine s(stems.

#$planation. N%&.

Question Number. <2. Where do the outputs from a DADC o?.

Option A. #)*%.

Option !. #AD%.Option C. %-E %nertial eference -ode anel.

Correct Ans"er is. #AD%.

#$planation. Aircraft %nstruments and %nterated *(stems b( #) allett pae 1=;.

Question Number. <1. )o" man( satellite sinals are reuired to achiee precise 0D positionin?.

Option A. 5.

Option !. 9.



Option C. <.


#$planation. N%&.

Question Number. <. The minimum reuirement for an aeroplane C+ is.

Option A. from po"er on.Option !. from enine start.

Option C. from beinnin of ta6e off roll.

Correct Ans"er is. from enine start.#$planation. A O* ara 1.=22 cB O ans"er c b( CA 0;0 *ection % ara 90.

Question Number. <0. An %nertial Naiation *(stem %N*8%*B computes distance from

acceleration b(.

Option A. t"o successie interations.

Option !. a simple interation.Option C. a differentiation follo"ed b( an interation.

Correct Ans"er is. t"o successie interations.

#$planation. N%&.

Question Number. <5. !efore the aircraft is moed from the loadin pier the pilotmust.

Option A. insert the lonitude and latitude of the first "a(point into the %N*.

Option !. set the altitude to be fed into the %N*.

Option C. insert the latitude and lonitude of the pier into the %*.Correct Ans"er is. insert the latitude and lonitude of the pier into the %*.

#$planation. N%&.

Question Number. <9. An %* has.

Option A. accelerometers and (ros fi$ed to a the airframe.Option !. accelerometers fi$ed to the airframe and (ros on a stable platform.

Option C. accelerometers on a stable platform and (ros fi$ed to the airframe.

Correct Ans"er is. accelerometers and (ros fi$ed to a the airframe.#$planation. N%&.

Question Number. <<. An %* s(stem reuires data for "ind computation from.Option A. Doppler *(stem.

Option !. satellites.

Option C. central Air Data Computer.Correct Ans"er is. central Air Data Computer.

#$planation. N%&.

Question Number. <=. The 3-* carries out a ho8Theta naiation function, the purpose of this

is to.



Option A. update the %* s(stem "ith an accurate position fi$ of latitude and lonitude.

Option !. to update the +O and D-# s(stems "ith an accurate position fi$.

Option C. to update the #-* "ith the ne" lateral fliht profile for the fliht plan.

Correct Ans"er is. update the %* s(stem "ith an accurate position fi$ of latitude and lonitude.#$planation. N%&.

Question Number. <@. The 3-* is updated.

Option A. automaticall( b( update data from the ACA*.

Option !. b( an aircraft enineer updatin the s(stem either b( a manetic tape or flopp(disc.

Option C. b( the aircre" b( reference to the Tech &o.

Correct Ans"er is. b( an aircraft enineer updatin the s(stem either b( a manetic tape or flopp(disc.

#$planation. N%&.

Question Number. <;. itch Control of a fl( b( "ire s(stem is achieed b(.

Option A. stabili>er onl(.

Option !. eleators onl(.Option C. stabili>er and eleator.

Correct Ans"er is. stabili>er and eleator.

#$planation. N%&.

Question Number. =2. %n a fl( b( "ire s(stem, if the pilot control input is deried from a side

stic6 controllerE.Option A. there is no control surface feedbac6 to the side stic6.

Option !. control surface feedbac6 is fed to the side stic6.

Option C. there "ill be onl( control surface feedbac6 to the side stic6 after a computerfailure.

Correct Ans"er is. there is no control surface feedbac6 to the side stic6.

#$planation. N%&.

Question Number. =1. A basic %* platform has.Option A. 0 accelerometers and laser (ros.

Option !. Accelerometers and 0 laser (ros.

Option C. 0 accelerometers and 0 laser (ros.

Correct Ans"er is. 0 accelerometers and 0 laser (ros.#$planation. eppesen Aionics 3undamentals ae 10=.

Question Number. =. What must be entered into the %* before the aircraft can be

moed?.

Option A. 3liht plan.Option !. resent position.

Option C. Cruise heiht.

Correct Ans"er is. resent position.



#$planation. N%&.

Question Number. =0. The 3-* Operational Database is.Option A. updated once a month.

Option !. is fed "ith information on aircraft "eiht, cruise altitude and cost inde$ before ta6e off.

Option C. needs no update information.Correct Ans"er is. is fed "ith information on aircraft "eiht, cruise altitude and cost inde$ before

ta6e off.

#$planation. N%&.

Question Number. =5. Control surface feedbac6 is fed bac6 to.Option A. the 3liht Control Computer onl(.

Option !. the side stic6 controller onl(.

Option C. the 3liht Control Computer and side stic6 controller.

Correct Ans"er is. the 3liht Control Computer onl(.#$planation. N%&.

Question Number. =9. The accelerometer output in an %N*8%* is.

Option A. interated once to ie distance.

Option !. interated t"ice to ie elocit(.Option C. interated t"ice to ie distance.

Correct Ans"er is. interated t"ice to ie distance.

#$planation. N%&.

Question Number. =<. An %N*8%* !atter( :nit proides.

Option A. standb( po"er onl( "hilst in fliht.Option !. standb( po"er "hen airborne and on the round.

Option C. standb( po"er onl( on the round.

Correct Ans"er is. standb( po"er "hen airborne and on the round.#$planation. Aircraft %nstruments and %nterated *(stems. allett ae 5= 5@.

Question Number. ==. %f a fl( b( "ire actuator loses h(draulic po"er the control surface

"ill.

Option A. automaticall( moe bac6 to the neutral position.

Option !. remain riid in the failure position.Option C. remain in the failure position but ma( moe due to aerod(namic pressure.

Correct Ans"er is. remain in the failure position but ma( moe due to aerod(namic pressure.

#$planation. N%&.

Question Number. =@. %* alinment.Option A. ta6es up to 12 minutes and the present position can be entered at an( time durin

alinment.

Option !. ta6es up to 12 minutes and present position must be entered before alinment.



Option C. ta6es up to 12 minutes and the preious fliht shut do"n present position is used for the

alinment.

Correct Ans"er is. ta6es up to 12 minutes and the present position can be entered at an( time durin

alinment.#$planation. N%&.

Question Number. =;. A fault liht appears on the %* -ode *elector :nit durin the alinment

seuence. The correct action is.

Option A. immediatel( s"itch off and select the standb( s(stem.Option !. select )D78*T* on the %nertial *(stem Displa( :nit %*D:B, obsere the action code in

the riht alpha8numeric displa(.

Option C. refer to the "arnin displa( on the #%CA*8#CA- s(stem.Correct Ans"er is. select )D78*T* on the %nertial *(stem Displa( :nit %*D:B, obsere the action

code in the riht alpha8numeric displa(.

#$planation. N%&.

Question Number. @2. A 3-* has a total of ho" man( Databases.

Option A. .Option !. 5.

Option C. 1.

Correct Ans"er is. .#$planation. N%&.

Question Number. @1. 3l( b( "ire )ih *peed protection is.Option A. to preent tuc6 under.

Option !. to increase the pitch anle as speed increases.

Option C. to preent hih speed stall.Correct Ans"er is. to preent tuc6 under.

#$planation. N%&.

Question Number. @. An %* &aser (ro proides.

Option A. detection of the rate of moement about an aircraft a$is.Option !. detection of the earths raitational force to establish true north.

Option C. detection of the earths rotation to establish true north.

Correct Ans"er is. detection of the rate of moement about an aircraft a$is.


Question Number. @0. The left and riht coc6pit displa(s.Option A. are supplied from separate *(mbol 7enerators at all times.

Option !. are supplied from the same *(mbol 7enerator.

Option C. "ill onl( be supplied from the same s(mbol enerator "hen all other s(mbol eneratorshae failed.

Correct Ans"er is. "ill onl( be supplied from the same s(mbol enerator "hen all other s(mbol

enerators hae failed.



#$planation. N%&.

Question Number. @5. A sinle failure of a fl( b( "ire control surface computer"ill.

Option A. cause the s(stem to reert to an alternate la" of operation.

Option !. not hae an( operational effect on the s(stem.Option C. cause the s(stem to reert to a direct la" of operation.

Correct Ans"er is. not hae an( operational effect on the s(stem.

#$planation. N%&.

Question Number. @9. What are the outputs from diital cloc6s used for?.Option A. 3liht data acuisition unit, 3liht manaement computer and +oice recorder.

Option !. +O, %&* and D-#.

Option C. Weather radar, TCA* and ACA*.

Correct Ans"er is. 3liht data acuisition unit, 3liht manaement computer and +oicerecorder.

#$planation. Onl( these reuire real time reference.

Question Number. @<. A full operation s(stem !%T# chec6 "ill carr( out a internal s(stem test

that ensures the s(stem meets desin reuirements and is operational.Option A. but "ill not moe the controls.

Option !. as "ell as chec6in full s(stem and "ill moe the controls to their stops.

Option C. as "ell as chec6in full s(stem but "ill not moe the controls to their stops.

Correct Ans"er is. as "ell as chec6in full s(stem but "ill not moe the controls to theirstops.

#$planation. Diital Aionic *(stems / Car( *pit>er. ae 12;, Arinc report <25 uidance for desin

and use of built in test euipment states... '!%T# should e$ercise the hard"are sufficientl( to determineif it meets the performance reuirements but should not drie it aainst mechanical stops.'.

Question Number. @=. %f on a fliht dec6 #3%* s(stem all the displa(s "ere missin one bit of

information. This is most li6el( to be.

Option A. the input sensor bus and displa( controller.Option !. the s(mbol enerator and displa(.

Option C. the displa( controller and s(mbol enerator.

Correct Ans"er is. the displa( controller and s(mbol enerator.

#$planation. !( elimination, a fault in the displa( "ould be more eneral, and a fault "ith the sensor"ould still displa(, but an erroneous alue.

Question Number. @@. A centralised monitorin computer s(stem is used.

Option A. to test s(stem durin fliht and for !%T# test of s(stems on the round usin a carr( on

control unit.Option !. to test s(stems in fliht and on the round usin a centralised on board control

unit.

Option C. testin s(stems on the round onl(.



Correct Ans"er is. to test s(stems in fliht and on the round usin a centralised on board control

unit.

#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae =2.

Question Number. @;. %n an #3%* displa(, the lines, scales, indicator and s(noptic are enerated

b(.Option A. raster scan.

Option !. s(noptic scan.

Option C. stro6e pulse.Correct Ans"er is. stro6e pulse.

#$planation. =9= -- 05//22 pae 52 pB and =0= -- 05//22 pae 5=, 5bB.

Question Number. ;2. The method of producin "hiteB lines for aircraft s(mbols, +8* scale

etc. on an #AD% is b(.

Option A. raster scan.Option !. trape>oidal input.

Option C. stro6e pulse.

Correct Ans"er is. stro6e pulse.#$planation. -- =0=/02285228922, 05//22 pae 5= 5b or -- =9= 05//22 pae 52 pB. 'The

special s(mbols, characters, letters, ectors and arcs are displa(ed usin the stro6e method. The #AD%

s6(8round ball or #)*% "eather radar are displa(ed usin the raster method.

Question Number. ;1. %n modern aircraft, the output from the cloc6 is used.

Option A. to s(nchronise the sinals on the control bus.Option !. to proide a cloc6 pulse for CT.

Option C. to ie 7-T details to the fliht recorder and other s(stems.

Correct Ans"er is. to ie 7-T details to the fliht recorder and other s(stems.#$planation. N%&.

Question Number. ;. As a minimum reuirement, "hen must a coc6pit oice recorder start

recordin?.

Option A. 3rom the start of the aircraft ta6e off run.Option !. After ta6e off "hen airborne.

Option C. On first enine start.

Correct Ans"er is. On first enine start.

#$planation. CA 0;0 *ection % ara 90, O ans"er a b( A O* ara 1.=22 U.

Question Number. ;0. The operational database of the 3-* ma( hae to be modified infliht.

Option A. %t cannot be modified in fliht.

Option !. b( the pilot.Option C. automaticall( b( the DADC.

Correct Ans"er is. %t cannot be modified in fliht.

#$planation. N%&.



Question Number. ;5. CADC outputs are.

Option A. altitude, ertical speed, %A*, mach no.Option !. altitude, ertical speed, TA*, CA*, mach no, *AT, TAT.

Option C. altitude ,ertical speed, anle of attac6, TAT, *AT.

Correct Ans"er is. altitude, ertical speed, TA*, CA*, mach no, *AT, TAT.#$planation. Aircraft %nstruments and %nterated *(stems allett ae 1<.

Question Number. ;9. %f one #%CA* CT fails.

Option A. the 3-* CD: "ill displa( the failed CT data.

Option !. the remainin CT "ill displa( primar( #%CA* data.Option C. the standb( CT "ill automaticall( ta6e oer.

Correct Ans"er is. the remainin CT "ill displa( primar( #%CA* data.

#$planation. N%&.

Question Number. ;<. +ariations in liht on #3%* displa(s are compensated for

b(.Option A. An e$ternal liht dependant resistor mounted on the fliht dec6 compensatin for all

displa(s in a parallel/parallel format.

Option !. manual adLustment b( fliht cre" on #3%* controller.Option C. interated liht dependant resistors in the displa( compensatin for each displa(

indiidual.

Correct Ans"er is. An e$ternal liht dependant resistor mounted on the fliht dec6 compensatin for

all displa(s in a parallel/parallel format.#$planation. Aircraft %nstruments and %nterated *(stems b( #) allett paes ;< ;;.

Question Number. ;=. A method used in modern aircraft for reportin in fliht faults to an

enineerin and monitorin round station is.

Option A. TCA* %%.Option !. ACA*.

Option C. TAW*.

Correct Ans"er is. ACA*.#$planation. Aircraft #lectricit( and #lectronics #ismin 9th #dition ae ;;.

Question Number. ;@. The self test function on an #3%* s(stem can be tested.Option A. on the round onl(.

Option !. in the air onl(.

Option C. in the air and on the round.Correct Ans"er is. in the air and on the round.

#$planation. N%&.

Question Number. ;;. #ach of the s(mbol enerator outputs in an #3%* s(stem can

be.



Option A. displa(ed on each indiidual displa(.

Option !. onl( no. can be displa(ed on the no.1.

Option C. can not be interchaned.

Correct Ans"er is. displa(ed on each indiidual displa(.#$planation. N%&.

Question Number. 122. !%T# tests are inhibited for round use durin.

Option A. for"ard motion.

Option !. ear retraction.Option C. ta6e/off.

Correct Ans"er is. ta6e/off.

#$planation. N%&.

Question Number. 121. -odern aircraft "ith electronic displa(s "ould displa( information on

airframe and enine on "hich s(stem?.Option A. #lectronic centralised aircraft monitorin s(stem #CA-B.

Option !. 3liht manaement s(stem.

Option C. #AD%.Correct Ans"er is. #lectronic centralised aircraft monitorin s(stem #CA-B.

#$planation. N%&.

Question Number. 12. The 3liht data recorder starts recordin.

Option A. after ta6e off.

Option !. on aircraft roll out from stand.Option C. after the first enine has started.

Correct Ans"er is. after the first enine has started.

#$planation. A O* *ubpart J 1.=19 e.

Question Number. 120. Data to fliht data recorder can be ta6en from a communal data busif.

Option A. the po"er is "ithin fliht data recorder limits.

Option !. it oes directl( to it.Option C. source isolation has been considered.

Correct Ans"er is. source isolation has been considered.

#$planation. N%&.

Question Number. 125. A central fault displa( s(stem should be aailable throuh.

Option A. a bite test.Option !. a central bite test bo$ "ith clear &#D indications.

Option C. a easil( accessible multifunction control displa( unit.

Correct Ans"er is. a easil( accessible multifunction control displa( unit.#$planation. N%&.



Question Number. 129. A fliht data recorder should be capable of recordin.

Option A. the last 9 hours.

Option !. the last 9 hours of aircraft fliht.

Option C. the last 9 hours "ith enines runnin.Correct Ans"er is. the last 9 hours "ith enines runnin.

#$planation. N%&.

Question Number. 12<. !%T# for round use onl( is s"itched off.

Option A. on ta6e/off.Option !. "hen bra6es are released.

Option C. "hen undercarriae up.

Correct Ans"er is. on ta6e/off.#$planation. N%&.

Question Number. 12=. Durin normal functionin of an #CA- s(stem the enine data sho"non the #nine8Warnin displa( comes from the.

Option A. #3%* channel of D-C0.

Option !. #CA- channel of D-C1.Option C. #CA- channel of D-C0.

Correct Ans"er is. #CA- channel of D-C0.

#$planation. A002/22 01/92/22 p5.

Question Number. 12@. :sin %.N.*. an aircraft flies.

Option A. rhumb line.Option !. course directed b( round station.

Option C. reat circle route.

Correct Ans"er is. reat circle route.#$planation. eppesen Aionics 3undamentals ae 10.

Question Number. 12;. What "arnins can an 3-* proide?.

Option A. 7round faults onl(.

Option !. Discrete "arnins.Option C. *purious faults.

Correct Ans"er is. Discrete "arnins.

#$planation. N%&.

Question Number. 112. Aircraft headin )D7B is.

Option A. the anle bet"een True North and the lonitudinal a$is of the aircraft.Option !. the anle bet"een True North and the actual trac6.

Option C. the anle bet"een True North and the desired trac6.

Correct Ans"er is. the anle bet"een True North and the lonitudinal a$is of the aircraft.#$planation. Aircraft %nstruments and %nterated *(stems #) allett ae 95.



Question Number. 111. 3or an %* *(stem to pass the Alinment *(stem erformance Test the

the latitude entered must be "ithin ien limits of the.

Option A. latitude computed b( %:.

Option !. entered present latitude and lonitude must aree "ith the latitude and lonitude at last po"er do"n.

Option C. the No 1 and No must both hae the same latitude and lonitude present position

entered.Correct Ans"er is. the latitude entered must be "ithin ien limits of the latitude computed b( %:.

#$planation. Aircraft %nstruments and %nterated *(stems, allett paes =;/@2.

Question Number. 11. Control Displa( :nit CD: B selection of TJ# Trac6 Anle #rrorB,

displa(s.Option A. difference in derees that the aircraft is to the riht or left of the desired trac6.

Option !. distance perpendicular from the selected trac6.

Option C. difference in derees from True North in a cloc6"ise direction from the desired

trac6.Correct Ans"er is. difference in derees that the aircraft is to the riht or left of the desired trac6.

#$planation. Aircraft %nstruments and %nterated *(stems #) allett ae 9<.

Question Number. 110. %n the #%CA* s(stem, "hen is the maintenance mode

aailable?.Option A. &o"er screen onl( / onl( aailable on the round.

Option !. %n fliht.

Option C. On the upper and lo"er screens / onl( aailable on the round.

Correct Ans"er is. &o"er screen onl( / onl( aailable on the round.#$planation. !=5= -aintenance -anual. Aircraft %nstruments and %nterated *(stems. allett ae

0@2.

Question Number. 115. On a modern aircraft "hen are !%T# chec6s carried out?.

Option A. Continuousl( "hen s(stem is in use.Option !. After enine shut do"n.

Option C. Onl( "hen !%T# selected.

Correct Ans"er is. Continuousl( "hen s(stem is in use.#$planation. Aircraft #lectricit( and #lectronics, 9th edition, #ismin, aes 19 and <@.

Question Number. 119. %n an %N s(stem, the purpose of the stable platform is to.Option A. proide attitude reference.

Option !. preent un"anted acceleration affectin the accelerometers.

Option C. stop the (ros from topplin.Correct Ans"er is. preent un"anted acceleration affectin the accelerometers.

#$planation. Aircraft %nstruments and %nterated *(stems #) allett ae <2.

Question Number. 11<. An %N s(stem reuires data from the.

Option A. Doppler s(stem.



Option !. airdata computer.

Option C. satellites.

Correct Ans"er is. airdata computer.

#$planation. eppesen Aionics 3undamentals ae 10@.

Question Number. 11=. TJ cross trac6B is the.Option A. actual trac6 across the earths surface.

Option !. anle in derees that the aircraft trac6 is left or riht of desired trac6.

Option C. perpendicular distance from the desired trac6.Correct Ans"er is. perpendicular distance from the desired trac6.

#$planation. Aircraft %nstruments and %nterated *(stems #) allett ae 9<.

Question Number. 11@. The output of an %N* can be fed to the.

Option A. attitude indicators.

Option !. altimeters.Option C. ertical speed indicators.

Correct Ans"er is. attitude indicators.

#$planation. Aircraft %nstruments and %nterated *(stems #) allett ae 5= fi 12.1. eppesenAionics 3undamentals ae 10= 10@.

Question Number. 11;. The three accelerometers on a strapdo"n s(stem are

mounted.

Option A. ;2 to each other.

Option !. parallel to each other.Option C. 12 apart.

Correct Ans"er is. ;2 to each other.

#$planation. eppesen Aionics 3undamentals ae 109.

Question Number. 12. 7(ro/compassin is the term used for.Option A. self/alinment in the ertical.

Option !. use of the (ro/manetic compass s(stem to alin the platform.

Option C. self/alinment in a>imuth.Correct Ans"er is. self/alinment in a>imuth.

#$planation. Aircraft %nstruments and %nterated *(stems #) allett ae @2.

Question Number. 11. #lectronic Centrali>ed Aircraft -onitorin *(stem operates

to.

Option A. ie red "arnins and amber cautions to displa( s(stem status.Option !. perform in/fliht !%T# onl(.

Option C. perform in/fliht and round tests of aircraft s(stems b( carr(in out a !%T#.

Correct Ans"er is. ie red "arnins and amber cautions to displa( s(stem status.#$planation. N%&.



Question Number. 1. The Centrali>ed Aircraft -onitorin *(stem uses the maintenance mode

of operation.

Option A. on the round onl(.

Option !. in the air onl(.Option C. either round or air.

Correct Ans"er is. on the round onl(.

#$planation. N%&.

Question Number. 10. %f part of a displa( is lost on a CT, this could be due to.Option A. an inoperatie s(mbol enerator or control panel.

Option !. an inoperatie s(mbol enerator or input sensor.

Option C. loss of po"er to the CT.Correct Ans"er is. an inoperatie s(mbol enerator or input sensor.

#$planation. N%&.

Question Number. 15. A c(clic test "atch doB should be performed for #CA-.

Option A. ia -CD:.

Option !. durin po"er up.Option C. durin fliht.

Correct Ans"er is. durin fliht.

#$planation. Aircraft #lectricit( and #lectronics, #ismin, 9th #dition. 195.

Question Number. 19. )o" does the s(mbol enerator detect a proram error?.

Option A. !( loo6in at the een parit( "ithout error.Option !. !( loo6in at the odd parit( "ithout error.

Option C. !( chec6 sum bites for error detect.

Correct Ans"er is. !( loo6in at the odd parit( "ithout error.#$planation. N%&.

Question Number. 1<. elationship of C-Cs to !%T# s(stems is best described

as.

Option A. C-Cs replaced but is not related to the older !%T# s(stem.Option !. C-Cs monitors the indiidual !%T# s(stems and presents data.

Option C. C-Cs modifies and uprades !%T# s(stems.

Correct Ans"er is. C-Cs monitors the indiidual !%T# s(stems and presents data.

#$planation. N%&.

Question Number. 1=. An %: interface test is carried out.Option A. in the air.

Option !. onl( on the round.

Option C. on the round or in the air.Correct Ans"er is. onl( on the round.

#$planation. N%&.



Question Number. 1@. 3-* s(stem ies "arnin indications for.

Option A. ta6e off and landins onl(.

Option !. an( fliht phase.Option C. cruise.

Correct Ans"er is. cruise.

#$planation. N%&.

Question Number. 1;. 3-* CD: "arnins are.Option A. fail and -*7.

Option !. O3*T and 3ail.

Option C. -*7, fail and O3*T.Correct Ans"er is. -*7, fail and O3*T.

#$planation. N%&.

Question Number. 102. C-C central maintenance computerB "or6s to.

Option A. perform in/fliht bite and round tests of aircraft s(stems, i.e. !%T#.

Option !. ie red "arnins and amber cautions to displa( in accordance "ith s(stemstatus.

Option C. perform in/fliht bite onl(.

Correct Ans"er is. perform in/fliht bite and round tests of aircraft s(stems, i.e. !%T#.#$planation. N%&.

Question Number. 101. !%T# test carried out on input sensors and actuators performs.

Option A. alidation of the information of the &:.

Option !. a performance test of the s(stem.Option C. a test of the &:.

Correct Ans"er is. a performance test of the s(stem.

#$planation. N%&.

Question Number. 10. A !%T# chec6 for automatic performance and fault monitorin is carriedout "hen?.

Option A. o"er/up self test.

Option !. 3or in/fliht monitorin.

Option C. To chec6 the performance of the &:.Correct Ans"er is. o"er/up self test.

#$planation. N%&.

Question Number. 100. %n "hich of the follo"in does TCA* %% adise the pilot to ma6e a

maneoure?.Option A. A.

Option !. TA.

Option C. either A or TA.



Correct Ans"er is. A.

#$planation. N%&.

Question Number. 105. What are the shapes of traffic sho"n on a TCA* displa(?.

Option A. White circles, red diamonds and amber suares.

Option !. White diamonds, red suares and amber circles.Option C. White suares, red diamonds and amber circles.

Correct Ans"er is. White diamonds, red suares and amber circles.

#$planation. N%&.

Question Number. 109. %f a displa( sho"s a red cross onl(, it is due to.Option A. *(mbol 7enerator failure.

Option !. CT failure.

Option C. Altimeter failure.

Correct Ans"er is. *(mbol 7enerator failure.#$planation. N%&.

Question Number. 10<. ACA* is an acron(m for.

Option A. A%NC Communicatin Addressin and eportin *(stem.

Option !. Airborne Communicatin Addressin and eportin *(stem.Option C. Aircraft Communicatin Addressin and eportin *(stem.

Correct Ans"er is. Aircraft Communicatin Addressin and eportin *(stem.

#$planation. N%&. httpE88""".acarsonline.co.u68alabout.htm

Question Number. 10=. When does the fliht data recorder start recordin ?.

Option A. :ndercarriae up.Option !. ar6in bra6e released.

Option C. When the first enine starts.

Correct Ans"er is. When the first enine starts.#$planation. N%&.

Question Number. 10@. !ra6e temperature displa(ed on a fliht dec6 CT has.

Option A. a master "arnin liht.

Option !. same colour throuhout.

Option C. different colour for different temperatures.Correct Ans"er is. different colour for different temperatures.

#$planation. N%&.

Question Number. 10;. When performin test on #lectronic Displa(s usin the !uilt %n Test

s(stem.Option A. CT continues to displa( current data "hile the *7s and Displa( are internall(

tested.

Option !. *7 inLects a test sinal into the displa( s(stem and the "ord T#*T appears on the



screen.

Option C. displa(s cannot be tested it is onl( *7 "hich are tested b( !%T#.

Correct Ans"er is. *7 inLects a test sinal into the displa( s(stem and the "ord T#*T appears on

the screen.#$planation. N%&.

Question Number. 152. )eadin reference reuired to establish initial headin durin alinment

seuence comes from.

Option A. 3-* "hich athers data from other adio deices.Option !. -anetic compass installed on the airplane.

Option C. #arths otation.

Correct Ans"er is. #arths otation.#$planation. N%&.

Question Number. 151. What is primar( mode of naiation on a modernaeroplane?.

Option A. !oth 7* and %*.

Option !. Onl( %*.Option C. %nch precise 7*.

Correct Ans"er is. Onl( %*.

#$planation. N%&.

Question Number. 15. %n a fliht director, ho" are small deiations corrected?.

Option A. ilot input.Option !. %nstrument is calibrated at fitment to remoe an( possible error.

Option C. %nstrument feedbac6.

Correct Ans"er is. ilot input.#$planation. N%&.

Question Number. 150. 3or a 0 dimensional fi$ in a 7lobal ositionin *(stem.

Option A. -inimum of 0 satellites must be in ie".

Option !. -inimum of satellites must be in ie" and altitude used to simulate a 0rdsatellite.

Option C. -inimum of 5 satellites must be in ie".

Correct Ans"er is. -inimum of 5 satellites must be in ie".

#$planation. N%&.

Question Number. 155. %n an aircraft euipped "ith TCA* %% and #3%*.Option A. A pitch command is sho"n on the #)*% and TA8A traffic on the #AD%.

Option !. A pitch command is sho"n on the +*% and TA8A traffic on the #)*%.

Option C. A pitch command is sho"n on the #AD% and TA8A traffic on the #)*%.Correct Ans"er is. A pitch command is sho"n on the #AD% and TA8A traffic on the #)*%.

#$planation. N%&.



Question Number. 159. The !%T# indicator on a D3D sho"s 4ello" colour. This

indicates.

Option A. po"er is ON but D3D is not recordin data.Option !. po"er is ON and D3D is recordin data.

Option C. po"er is O33 or D3D is at 3ault.

Correct Ans"er is. po"er is O33 or D3D is at 3ault.#$planation. N%&.

Question Number. 15<. %n a t(pical '7lass Coc6pit' #%CA* proides the follo"in.

Option A. enine parameters and s(stem "arnins onl(.

Option !. enine parameters and enine "arnins onl(.Option C. enine "arnins onl(.

Correct Ans"er is. enine parameters and s(stem "arnins onl(.

#$planation. N%&.

Question Number. 15=. What is the minimum reuirement for C+ to operate?.

Option A. !#3O# ta6e/off.Option !. !#3O# enine start.

Option C. at an( time the manufacturer decides.

Correct Ans"er is. !#3O# ta6e/off.#$planation. -inimum reuirement is AT first enine start accordin to A O*B "hich is

!#3O# ta6e/of.

Question Number. 15@. #CA- s(stem "as adopted for.

Option A. Airbus A012.

Option !. both !oein and Airbus aircraft.Option C. !oein =9= and =<= aircraft.

Correct Ans"er is. Airbus A012.

#$planation. N%&.

Question Number. 15;. A modern electromanetic 3liht Data ecorder, for recordin data,could useE.

Option A. a flopp( dis6.

Option !. a plastic tape coated in ferrite.

Option C. a copper o$ide strin.Correct Ans"er is. a plastic tape coated in ferrite.

#$planation. N%&.

Question Number. 192. What is the minimum reuirement for a C+ to start

recordin?.Option A. When par6in bra6e is released.

Option !. On commencement of fliht.

Option C. When aircraft is capable of moin under its o"n po"er.



Correct Ans"er is. When aircraft is capable of moin under its o"n po"er.

#$planation. A Ops 1.=22 para c.

Question Number. 191. As a minimum reuirement "hen must a coc6pit oice recorder start

recordin?.

Option A. Once airborne after ta6e off.Option !. !efore enine start.

Option C. Once aircraft is read( to moe under its o"n po"er.

Correct Ans"er is. Once aircraft is read( to moe under its o"n po"er.#$planation. A Ops 1.=22 para c.

05.16.

Question Number. . 1 12121 G 11221 H.Option A. 5<.

Option !. 5<@.

Option C. 5<12.Correct Ans"er is. 5<12.

#$planation. 12121 G 11221 H 121112 H 5<12.

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Module 5 Digital Instrument