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Exam
Name___________________________________
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
1) Two kinds of data selectors are ________ and ________. 1)A) comparators, registers B) encoders, decodersC) adders, subtractors D) multiplexers, demultiplexers
Answer: DDiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
2) A waveform that repeats itself at fixed intervals is called a periodic waveform. 2)Answer: True FalseDiff: 0 Type: TF
3) Parallel data is sent along a single conductor, one bit at a time. 3)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
4) Which one of the following is not a surface-mount IC package? 4)A) SOIC B) DIP C) FP D) PLCC
Answer: BDiff: 0 Type: MC
5) The arrow in the figure below points to pin number ________. 5)
A) 13 B) 4 C) 12 D) 5Answer: DDiff: 0 Type: MC
1
Figure 1-1
6) Which edge in Figure 1-1 is the trailing edge? 6)A) 1 B) 2 C) 3 D) Both 1 and 3
Answer: CDiff: 0 Type: MC
7) The output from an AND gate is LOW ________. 7)A) when at least one input is LOW B) only when all inputs are LOWC) only when all inputs are HIGH D) none of the above
Answer: ADiff: 0 Type: MC
Figure 1-3
8) The symbol in Figure 1-3(A) represents the ________ function. 8)A) AND B) NOT C) OR D) AND/OR
Answer: ADiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
9) When the inputs to a 2-input AND gate are both HIGH, the output is HIGH. 9)Answer: True FalseDiff: 0 Type: TF
10) A demultiplexer is sometimes called a mux. 10)Answer: True FalseDiff: 0 Type: TF
11) The DIP package style has two parallel rows of through-hole pins. 11)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
12) Which one of the circuits listed is made up of flip-flops? 12)A) A converter B) A multiplexer C) A comparator D) A register
Answer: DDiff: 0 Type: MC
2
13) The transition times for an ideal digital pulse are ________. 13)A) measured between 0 and 90% of the amplitudeB) measured between 10% to 90% of the amplitudeC) zeroD) infinite
Answer: CDiff: 0 Type: MC
14) Which IC package style has no leads? 14)A) LCCC B) SOICC) PLCC D) All must have leads.
Answer: ADiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
15) When the input to a logic inverter is HIGH, the output is LOW. 15)Answer: True FalseDiff: 0 Type: TF
16) When both inputs to a 2-input OR gate are both LOW, the output is LOW. 16)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
17) On a positive-logic pulse, the trailing edge is the ________. 17)A) LOW-to-HIGH transition B) rising edgeC) falling edge D) positive-going edge
Answer: CDiff: 0 Type: MC
18) Which circuit converts coded information into a noncoded form? 18)A) Comparator B) Encoder C) Decoder D) Multiplexer
Answer: CDiff: 0 Type: MC
19) On a negative-going pulse, the leading edge is the ________. 19)A) rising edge B) negative-going edgeC) LOW-to-HIGH transition D) positive-going edge
Answer: BDiff: 0 Type: MC
3
Figure 1-1
20) Which edge in Figure 1-1 is the leading edge? 20)A) 1 B) 2 C) 3 D) Both 1 and 3
Answer: ADiff: 0 Type: MC
21) On a positive-going pulse, the leading edge is the ________. 21)A) positive-going edge B) HIGH-to-LOW transitionC) falling edge D) negative-going edge
Answer: ADiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
22) The values of an analog signal flow smoothly from one to the next. 22)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Figure 1-3
23) The symbol in Figure 1-3(B) represents the ________ function. 23)A) AND B) XOR C) OR D) NON
Answer: CDiff: 0 Type: MC
24) On a digital waveform, the transition time from a LOW level to a HIGH level is called ________. 24)A) rise time B) period C) pulse width D) fall time
Answer: ADiff: 0 Type: MC
Figure 1-1
25) The time between transition 1 and transition 3 in Figure 1-1 is the ________. 25)A) frequency B) amplitude C) period D) pulse width
Answer: DDiff: 0 Type: MC
4
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
26) A multiplexer converts parallel data to serial data. 26)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
27) A circuit that converts an digital signal to an analog waveform is commonly called a(n) ________. 27)A) ADC B) CAD C) DAC D) PLD
Answer: CDiff: 0 Type: MC
Figure 1-4
28) The package style in Figure 1-4(A) is a(n) ________. 28)A) SOIC B) PLCC C) LCCC D) FP
Answer: ADiff: 0 Type: MC
29) The package style in Figure 1-4(C) is a(n) ________. 29)A) SOIC B) PLCC C) LCCC D) FP
Answer: CDiff: 0 Type: MC
30) Which circuit converts data from serial form to parallel form? 30)A) Demultiplexer B) Multiplexer C) Encoder D) Comparator
Answer: ADiff: 0 Type: MC
31) The final step in the PLD programming process is ________. 31)A) design entry B) compilation C) synthesis D) download
Answer: DDiff: 0 Type: MC
5
Figure 1-2
32) Item (4) of the nonideal pulse in Figure 1-2 represents the waveform ________. 32)A) amplitude B) rise time C) fall time D) pulse width
Answer: CDiff: 0 Type: MC
33) Which of the following is an example of a mechatronics system? 33)A) A laptop computer B) An industrial robotC) A surgical laser D) None of the above
Answer: BDiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
34) Digital systems respond to voltage levels that change abruptly between two levels (high and low). 34)Answer: True FalseDiff: 0 Type: TF
35) A sinusoidal waveform is an analog signal. 35)Answer: True FalseDiff: 0 Type: TF
36) Serial data is sent along a single conductor, one bit at a time. 36)Answer: True FalseDiff: 0 Type: TF
6
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Figure 1-2
37) Item (3) of the nonideal pulse in Figure 1-2 represents the waveform ________. 37)A) amplitude B) rise time C) fall time D) pulse width
Answer: DDiff: 0 Type: MC
38) A periodic digital waveform ________. 38)A) has both a HIGH and LOW levels B) repeats itself at a fixed intervalC) has a duty cycle D) all of the above
Answer: DDiff: 0 Type: MC
39) The first step in the PLD programming process is ________. 39)A) design entry B) compilation C) synthesis D) download
Answer: ADiff: 0 Type: MC
Figure 1-4
40) The package style in Figure 1-4(B) is a(n) ________. 40)A) SOIC B) PLCC C) LCCC D) FP
Answer: BDiff: 0 Type: MC
41) The output from an OR gate is HIGH ________. 41)A) only when all inputs are LOW B) only when all inputs are HIGHC) when at least one input is HIGH D) none of the above
Answer: CDiff: 0 Type: MC
7
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
42) The FPGA is a fixed-function device. 42)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
43) On a digital waveform, the transition time from a HIGH level to a LOW level is called ________. 43)A) period B) pulse width C) rise time D) fall time
Answer: DDiff: 0 Type: MC
Figure 1-2
44) Item (1) of the nonideal pulse in Figure 1-2 represents the waveform ________. 44)A) period B) amplitude C) pulse width D) transition time
Answer: BDiff: 0 Type: MC
45) What is the duty cycle of a digital waveform with a pulse width of 10 ms a period of 90 ms? 45)A) 90% B) 10% C) 11.1% D) 9%
Answer: CDiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
46) Encoders and decoders perform opposite conversions. 46)Answer: True FalseDiff: 0 Type: TF
47) Digital data can be processed and transmitted more efficiently and reliably than analoginformation.
47)
Answer: True FalseDiff: 0 Type: TF
8
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
48) The time from one leading edge on a digital waveform to the next is the waveform ________. 48)A) period B) rise time C) pulse width D) fall time
Answer: ADiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
49) The field that comprises both mechanical and electronic components is known aselectro-mechanics.
49)
Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Figure 1-3
50) The symbol in Figure 1-3(C) represents the ________ function. 50)A) OR B) AND C) XOR D) NOT
Answer: DDiff: 0 Type: MC
51) Which circuit converts information into a specific coded form? 51)A) Comparator B) Encoder C) Decoder D) Multiplexer
Answer: BDiff: 0 Type: MC
52) The output from an AND gate is HIGH when ________. 52)A) one input is LOW and the remaining inputs are HIGHB) one input is HIGH and the remaining inputs are LOWC) all inputs are HIGHD) all inputs are LOW
Answer: CDiff: 0 Type: MC
53) The output from an OR gate is LOW ________. 53)A) whenever any input is HIGH B) only when all inputs are HIGHC) only when all inputs are LOW D) none of the above
Answer: CDiff: 0 Type: MC
9
54) An oscilloscope display indicates that the period of a digital waveform is 40 µs. What is frequencyof this waveform?
54)
A) 25 kHzB) 2.5 kHzC) 40 MHzD) The frequency cannot be determined using the information provided.
Answer: ADiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
55) The binary number system uses just two symbols. 55)Answer: True FalseDiff: 0 Type: TF
56) A flip-flop is a 1-bit storage device. 56)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
57) On a negative-logic pulse, the trailing edge is the ________. 57)A) falling edge B) negative-going edgeC) HIGH-to-LOW transition D) positive-going edge
Answer: DDiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
58) The PLCC package has J-type leads on all four edges. 58)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
59) Which one of the following is not a binary arithmetic function? 59)A) Multiplexing B) Division C) Subtraction D) Addition
Answer: ADiff: 0 Type: MC
60) Which circuit creates an output that indicates whether or not the input values are equal? 60)A) Comparator B) Encoder C) Decoder D) Multiplexer
Answer: ADiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
61) When either input to a 2-input OR gate is HIGH, the output is HIGH. 61)Answer: True FalseDiff: 0 Type: TF
10
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
62) On a negative-going pulse, ________. 62)A) HIGH = 0 and LOW = -1 B) HIGH = 0 and LOW = 1C) LOW = -1 and HIGH = 1 D) HIGH = 1 and LOW = 0
Answer: BDiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
63) The clock signal synchronizes the other waveforms in a circuit. 63)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
64) When data is set along a single conductor, it is referred to as ________. 64)A) parallel data B) simultaneous dataC) serial data D) none of these
Answer: CDiff: 0 Type: MC
65) The netlist is generated during the ________ phase of the PLD programming process. 65)A) design entry B) compilation C) synthesis D) download
Answer: CDiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
66) The decimal number system uses nine different symbols. 66)Answer: True FalseDiff: 0 Type: TF
67) The flat-pack (FP) IC package style is a surface-mount device. 67)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
68) The arrow in the figure below points to pin ________. 68)
A) 4 B) 5 C) 17 D) 16Answer: CDiff: 0 Type: MC
11
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
69) Clock signals carry pieces of information such as letters and numbers. 69)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
70) The approximate duty cycle for the digital waveform below is ________. 70)
A) 30% B) 80% C) 20% D) 50%Answer: CDiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
71) When either input to a 2-input AND gate is LOW, the output is LOW. 71)Answer: True FalseDiff: 0 Type: TF
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
72) Of the circuits listed, the one that is most likely to be found in a CD player is a(n) ________. 72)A) programmable logic device B) SPLDC) digital-to-analog converter D) analog-to-digital converter
Answer: CDiff: 0 Type: MC
TRUE/FALSE. Write 'T' if the statement is true and 'F' if the statement is false.
73) The amplitude of a digital waveform is the difference in voltage between the LOW and HIGHlevels.
73)
Answer: True FalseDiff: 0 Type: TF
12
MULTIPLE CHOICE. Choose the one alternative that best completes the statement or answers the question.
Figure 1-2
74) Item (2) of the nonideal pulse in Figure 1-2 represents the waveform ________. 74)A) amplitude B) rise time C) fall time D) pulse width
Answer: BDiff: 0 Type: MC
75) A circuit that converts an analog waveform to a digital signal is commonly called a(n) ________. 75)A) ADC B) CAD C) PLD D) DAC
Answer: ADiff: 0 Type: MC
13
Answer KeyTestname: CH1
1) D2) TRUE3) FALSE4) B5) D6) C7) A8) A9) TRUE
10) FALSE11) TRUE12) D13) C14) A15) TRUE16) TRUE17) C18) C19) B20) A21) A22) TRUE23) C24) A25) D26) TRUE27) C28) A29) C30) A31) D32) C33) B34) TRUE35) TRUE36) TRUE37) D38) D39) A40) B41) C42) FALSE43) D44) B45) C46) TRUE47) TRUE48) A49) FALSE50) D
14
Answer KeyTestname: CH1
51) B52) C53) C54) A55) TRUE56) TRUE57) D58) TRUE59) A60) A61) TRUE62) B63) TRUE64) C65) C66) FALSE67) TRUE68) C69) FALSE70) C71) TRUE72) C73) TRUE74) B75) A
15