The blades of the The blades of the fixed-pitch propeller are fixed-pitch propeller are non-adjustablenon-adjustable..

sound

Adjustable bladesAdjustable blades

s

ADVANTAGES:ADVANTAGES:1) by adjusting the blades pitch can be controlled;pitch can be controlled;

s

APPLICATION:APPLICATION: vessels with variable rated capacities.

2) constant Revolutions Per Minute.

s

s

APPLICATION:APPLICATION: small vessels with high rating-capacities.

ADVANTAGES:ADVANTAGES:1) enlargement of manoeuvrability by a movable ductmovable duct; 2) enlargement of propellerpropeller racerace; 3) propeller-noise reduction-noise reduction; 4) propeller-protectionprotection.

s

APPLICATION:APPLICATION:shallow draught vessels.s

ADVANTAGES:ADVANTAGES:1) higher speed development;2) no moving parts outside the hull.

s

DISADVANTAGE:DISADVANTAGE:low efficiency.

s

s

s

Voith-Schneider propeller

APPLICATION:APPLICATION:when high manoeuvrabilityhigh manoeuvrability is required.

s

ADVANTAGE:ADVANTAGE:a thrust can be produced in any directionany direction.

s

DISADVANTAGE:DISADVANTAGE:limitation on the maximum power (low efficiency).(low efficiency).

s

SHIP CONSTRUCTION

D

E

A

B

C

waterline

A= CamberB = Tumble Home

C = FreeboardD = BeamE = Dead rise

1. The 1. The opening opening in the deck in the deck beneath the beneath the anchor windlass that leads to the chain anchor windlass that leads to the chain lockerlocker is the: is the:

A. hawse pipe

B. spill pipe

C. fall pipe

D. drop pipe

2. The fitting that 2. The fitting that allows a boom to move allows a boom to move freely both vertically and laterallyfreely both vertically and laterally is is called the:called the:

A. swivel

B. lizard

C. spider band

D. gooseneck

3.3. The half–breadth plan is _________.The half–breadth plan is _________.

A. an endwise view of the ship’s molded form

B. a longitudinal side elevation

C. usually drawn on the port side only

D. a plan with a forebody to right of centerline

and afterbody to the left of centerline

4. The 4. The system of valves and cargo linessystem of valves and cargo lines in the bottom piping network of a tank in the bottom piping network of a tank barge that barge that connects one section of connects one section of cargo tanks to another sectioncargo tanks to another section is called is called a ______.a ______.

A. manifold

B. crossover

C. by-pass

D. run around

5. The 5. The deck beam bracketsdeck beam brackets of a of a transversely framed vessel transversely framed vessel resistresist ____. ____.

A. shearing stress

B. hogging stress

C. racking stress

D. panting stress

Deckbeam bracketsserve as jointsbetween deckbeams and frames.

sound

6. What term indicates the 6. What term indicates the immersed body immersed body of the vessel forward of the parallel mid-of the vessel forward of the parallel mid-bodybody??

A. Entrance

B. Flare

C. Run

D. Sheer

7. A term applied to the 7. A term applied to the bottom shell bottom shell plating in a double bottom shipplating in a double bottom ship is ____. is ____.

A. bottom floor

B. shear plating

C. outer bottom

D. tank top

Double Bottom StructureDouble Bottom Structure

Transverse Framing Combination Framing

8. Which part of a conventional cargo 8. Which part of a conventional cargo gear rig gear rig provides for vertical control provides for vertical control and positioning of a boomand positioning of a boom??

A. Topping Lift

B. Cargo Whip

C. Spider band

D. Runner

9. In a longitudinally-framed ship, the In a longitudinally-framed ship, the longitudinal frames are held in place and longitudinal frames are held in place and supported by athwartship members supported by athwartship members called ______.called ______.

A. floors

B. web frames

C. margin plate

D. stringers

10. A single fitting installed in a pipeline A single fitting installed in a pipeline that either blanks off the pipe or allows that either blanks off the pipe or allows a full flow passage of a liquid through a full flow passage of a liquid through the pipe is referred to as a _______.the pipe is referred to as a _______.

A. blind flange

B. pivot coupling

C. spectacle flange

D. quick release coupling

11. The term “scantlings” refers to the ___.The term “scantlings” refers to the ___.

A. draft of a vessel

B. measurement of structural members

C. requirements for ship’s gear

D. placement of a vessel’s loadline

12. Molded depth is measured from the Molded depth is measured from the ___.___.

A. inside the shell

B. outside of the shell

C. top of the center vertical keel

D. top of the garboard stakea

13. The garboard strake is the ______.13. The garboard strake is the ______.

A. raise flange at the main deck edge

B. riveted crack arrester strap on all– welded ship

C. riveting pattern most commonly used in ship construction

D. row of plating nearest the keel

14. Which term indicates the rise in height 14. Which term indicates the rise in height of the bottom plating from the plane of of the bottom plating from the plane of the base line?the base line?

A. Deadrise

B. Molded height

C. Camber

D. Sheer

15. The horizontal flat surfaces where the The horizontal flat surfaces where the upper stock joins the rudder are the upper stock joins the rudder are the ________.________.

A. rudder keys

B. rudder palms

C. lifting flanges

D. shoes of the rudder

16. The type of joint 16. The type of joint formed when a third formed when a third small plate is riveted over two platessmall plate is riveted over two plates butted together is called a ______.butted together is called a ______.

A. butted joint

B. lap joint

C. strap joint

D. stringer joint

17. What term indicates the 17. What term indicates the line drawn at line drawn at the top of the flat plate keelthe top of the flat plate keel??

A. Baseline

B. Molded line

C. Designer’s waterline

D. Keel line

18. The 18. The maximum length allowed between maximum length allowed between main transverse bulkheadsmain transverse bulkheads on a vessel on a vessel is referred to as the _______.is referred to as the _______.

A. floodable length

B. factor of subdivision

C. compartment standard

D. permissible length

19. A 19. A set of steps on a ship leading up to a set of steps on a ship leading up to a deck from belowdeck from below is known as: is known as:

A. A companion way

B. Tween decks

C. Stairs

D. Any of the above is acceptable

20. The 20. The body plan of a vesselbody plan of a vessel is a (an) ___. is a (an) ___.

A. endwise view of the ship’s molded form

B. longitudinal side elevation view

C. plan made looking down on the ship,

showing it’s hull cut horizontally by the first set of planes

D. vertical view made looking up in the ship, with keel in the center

SHIPSHIP’’S BODY PLANS BODY PLAN SHOWING THE ENDWISE VIEW OF THE VESSEL MOLDED FORM AS SEEN FROM THE STERN

21. The sheer plan_______.21. The sheer plan_______.

A. shows a longitudinal side elevation

B. is an endwise view of the ship’s molded form

C. is usually drawn for the portside only

D. has the forebody to the right of the centerline and afterbody to the left of center

SHEER PLANSHEER PLAN SHOWING THE LONGITUDINALSIDE ELEVATION OF THE VESSEL.

22. Another name for the garboard strake 22. Another name for the garboard strake is the _______.is the _______.

A. Z strake

B. A strake

C. S strake

D. H strake

23. 23. The extension of the after part of the The extension of the after part of the keel in a single screw vessel upon which keel in a single screw vessel upon which the stern post rests is called the the stern post rests is called the ______.______.

A. boss

B. knuckle

C. skeg

D. strut

24. A flounder plate, on a topping lift, is A flounder plate, on a topping lift, is ___.___.

A. a fairlead block

B. a swivel pin for a topping lift block

C. a triangular steel plate with a hole at each corner

D. the lower block of a multiple part topping lift

25. A vessel is constructed with a steel hull 25. A vessel is constructed with a steel hull and an aluminum superstructure. Which and an aluminum superstructure. Which statement is TRUE?statement is TRUE?

A. The aluminum will provide greater resistance to the spread of fire by conduction

B. The aluminum structure is usually attached to a steel coaming

C. If the superstructure is stressed, an aluminum structure is replaced

D. The steel at the area of the aluminum to steel must be closely spaced

26. 26. What is NOT an advantage of double What is NOT an advantage of double bottom ships?bottom ships?

A. The tanktop forms a second skin for a

vessel

B. The center of gravity for a loaded bulk

cargo ship may be reduced

C. The floors and longitudinals distribute the

upward push of the water

D. They are less expensive to construct

because of increased pressure

27. Which part provides for transverse 27. Which part provides for transverse control and positioning of a boom in a control and positioning of a boom in a conventional yard and stay system?conventional yard and stay system?

A. Guy

B. Spider Band

C. Shroud

D. Topping Lift

28. A snatch block would most likely be 28. A snatch block would most likely be used as a _______.used as a _______.

A. boat fall

B. fairlead

C. riding pawl

D. topping lift

29. The floors in a vessel's hull structure 29. The floors in a vessel's hull structure are kept from tripping or folding over are kept from tripping or folding over by____.by____.

A. face plates

B. bottom longitudinals

C. longitudinal deck beams

D. transverse deck beams

30. In ship construction, frame spacing is 30. In ship construction, frame spacing is _____._____.

A. greater at the bow and stern

B. reduced at the bow and stern

C. uniform over the length of the vessel

D. uniform over the length of the vessel with the exceptions of the machinery

31. The "margin plate" is the ______.31. The "margin plate" is the ______.

A. outboard strake of plating on each side of an inner bottom

B. outer strake of plating on each side of the main deck of the vessel

C. plate which sits atop center vertical keel

D. uppermost continuous strake of plating on the shell of the vessel

32. 32. The main underdeck pipeline on a The main underdeck pipeline on a tankship is connected to individual tankship is connected to individual tanks by ______.tanks by ______.

A. Tank drops

B. Line drops

C. Crossover

D. Branch lines

33. What is a cofferdam?33. What is a cofferdam?

A. Opening in the deck used for cleaning a

tank

B. Tube fitted to an ullage hole

C. Void or empty space separating two tanks

D. Area the product is loaded into

34. Holes in the bulwark, which allow deck Holes in the bulwark, which allow deck water to drain into the sea are:water to drain into the sea are:

A. doggers

B. fidleys

C. freeing ports

D. swash ports

35. A flanged plate fitted over an air port on 35. A flanged plate fitted over an air port on the shipthe ship’’s outside shell to prevent water s outside shell to prevent water from entering the port is a ______.from entering the port is a ______.

A. brow

B. copper plate

C. cover plate

D. shade

36. 36. To determine the weight capacity of a To determine the weight capacity of a deck in a cargo hold, you would refer to deck in a cargo hold, you would refer to the ____.the ____.

A. deadweight scale

B. cubic capacity tables

C. general arrangement plan

D. deck capacity plan

37. The weight of the liquid displaced by a 37. The weight of the liquid displaced by a ship floating in sea water is equal to the ship floating in sea water is equal to the ______. ______.

A. weight required to sink the ship

B. displaced volume

C. reserve buoyancy

D. total weight of the ship

38. Which term indicates the rise in height 38. Which term indicates the rise in height of the bottom plating from the plane of of the bottom plating from the plane of the base line?the base line?

A. Deadrise

B. Camber

C. Molded height

D. Sheer

39. Buckler plates are __________.39. Buckler plates are __________.

A. triangular-shaped plates connecting the bull chain to the topping lift

B. metal plates secured over the top of the hawse pipes

C. faired shell plates with curvature in two directions

D. sheets of dunnage used to prevent heavy cargo from buckling the deck plates

40. A block that can be opened at the hook 40. A block that can be opened at the hook or shackle end to receive a bight of the or shackle end to receive a bight of the line is a __________.line is a __________.

A. bight block

B. snatch block

C. heel block

D. gin block

41. The opening in the deck that leads the 41. The opening in the deck that leads the anchor cable outside the hull is the anchor cable outside the hull is the ______.______.

A. hawse pipe

B. fall pipe

C. drop pipe

D. spill pipe

42. On cargo booms, preventers are 42. On cargo booms, preventers are _____._____.

A. stopper

B. runner

C. auxilliary guy

D. extra fairlead

43. The result of two forces acting in 43. The result of two forces acting in opposite directions and along parallel opposite directions and along parallel lines, is an example of what type of lines, is an example of what type of stress?stress?

A. Strain

B. Shear

C. Compression

D. Tensile

SHEARING STRESSSHEARING STRESS

EMPTYEMPTYFULLFULL

44. The fore and aft run of deck plating The fore and aft run of deck plating which strengthens the connection which strengthens the connection between the beams and the frames and between the beams and the frames and keeps the beams square to the shell is keeps the beams square to the shell is called the ______.called the ______.

A. limber strake

B. sheer strake

C. garboard strake

D. stringer strake

45. Shell plating is __________.45. Shell plating is __________.

A. the galvanizing on steel

B. the outer plating of a vessel

C. a hatch cove

D. synonymous with decking

46.46. The type of welding employed in The type of welding employed in shipyards is primarily _______.shipyards is primarily _______.

A. pressure welding

B. brazing

C. thermite welding

D. electric arc

47. Transverse frames are more widely 47. Transverse frames are more widely spaced on a ship that is designed with spaced on a ship that is designed with the _______.the _______.

A. longitudinal system of framing

B. transverse system of framing

C. centerline system of framing

D. isometric system of framing

48. The term "strake" is used in reference 48. The term "strake" is used in reference to ______.to ______.

A. rudder mountings

B. anchor gear

C. hull plating

D. vessel framing

49. When the longitudinal strength 49. When the longitudinal strength members of a vessel are continuous and members of a vessel are continuous and closely spaced, the vessel is _______.closely spaced, the vessel is _______.

A. transversely framed

B. longitudinally framed

C. intermittently framed

D. web framed

50. A vessel having continuous closely 50. A vessel having continuous closely spaced transverse strength members is spaced transverse strength members is ________.________.

A. longitudinally framed

B. cellular framed

C. web framed

D. transversely framed

51. In nautical terminology a "dog" is a 51. In nautical terminology a "dog" is a __________.__________.

A. crow bar

B. heavy steel beam

C. device to force a watertight door against

the frame

D. wedge

52. When using the term "limber system" 52. When using the term "limber system" one is referring to a ______.one is referring to a ______.

A. drainage system

B. cleaning system

C. strengthening system

D. weight reduction system

53. What is the usual depth of beam 53. What is the usual depth of beam brackets?brackets?

A. 2 ½ times the depth of the beam

B. 5 times the depth of the beam

C. 7 times the depth of the beam

D. Same as the depth of the beam

54. Which is an advantage of using 54. Which is an advantage of using watertight longitudinal division in watertight longitudinal division in double bottom tanks? double bottom tanks?

A. Increase the rolling period

B. Decrease weight because extra stiffeners are unneeded

C. Lower the center of buoyancy without decreasing the GM

D. Cuts down free surface effect

55. Panting frames are located in the:55. Panting frames are located in the:

A. after double bottom

B. centerline tanks

C. fore and after peaks

D. forward double bottom

56. To rigidly fasten together the peak 56. To rigidly fasten together the peak frames, the stern, and the outside frames, the stern, and the outside framing, a horizontal plate is fitted framing, a horizontal plate is fitted across the forepeak of a vessel. This across the forepeak of a vessel. This plate is known as a (an):plate is known as a (an):

A. apron plate

B. intercostals plate

C. breast hook

D. joiner

Transverse Framing SystemTransverse Framing System

57. Reinforcing frames attached to a 57. Reinforcing frames attached to a bulkhead on a vessel are called;bulkhead on a vessel are called;

A. side longitudinals

B. brackets

C. stiffeners

D. intercostals

58.58. What is the purpose of the perforation of What is the purpose of the perforation of a manger in the chain locker? a manger in the chain locker?

A. to allow water to drain properly

B. to prevent the chain from running out

C. for proper ventilation

D. to secure the end of the chain

59. The ratio of the height of the vessel’s 59. The ratio of the height of the vessel’s rudder to its width is calledrudder to its width is called::

A. rudder ratio

B. constriction ratio

C. steering ratio

D. aspect ratio

60. To reduce the number of strakes at the 60. To reduce the number of strakes at the bow, two strakes are tapered and joined bow, two strakes are tapered and joined at their end by a single plate. This plate is at their end by a single plate. This plate is known as:known as:

A. cover plate

B. lap strake

C. joiner

D. stealer plate

61. The pillar shape that gives the greatest 61. The pillar shape that gives the greatest strength for the least weight is the strength for the least weight is the _______._______.

A. circular type pillar

B. octagonal pillar

C. “T” beam

D. “H” beam

62. A strongback refers to _______:62. A strongback refers to _______:

A. spanner stay

B. deep beam

C. centerline vertical bulkhead

D. bar securing a cargo port

63. Shell plating that has curvature in two 63. Shell plating that has curvature in two directions and must be heated and directions and must be heated and hammered to shape over a specially hammered to shape over a specially prepared forms is calledprepared forms is called ______.

A. compound plate

B. flat plate

C. furnace plate

D. rolled plate

64. Bilge keels are more effective at 64. Bilge keels are more effective at dampening rolls as the:dampening rolls as the:

A. pitching increases

B. list increases

C. rolling increases

D. draft increases

65. A “contraguide” is a type of _____.65. A “contraguide” is a type of _____.

A. bow thruster

B. cargo gear

C. steering gear

D. rudder

66. What is a cofferdam?66. What is a cofferdam?

A. Any deck below the main deck and above the lowest deck

B. A member that gives fore and aft strength

C. Made by placing two bulkheads a few feet apart

D. A heavy fore and aft beam under the deck

67. A device inserted into a container 67. A device inserted into a container corner fitting that provide alignment and corner fitting that provide alignment and shear restraint in a stack of containers.shear restraint in a stack of containers.

A. Linkage plate

B. Buttress

C. Container stack

D. Stacking cone

68. The joint formed when two steel plates 68. The joint formed when two steel plates are placed end to end.are placed end to end.

A. bevel

B. butt

C. seam

D. bond

69. A ship which has no superstructure on 69. A ship which has no superstructure on the freeboard deck is called ____.the freeboard deck is called ____.

A. flush deck ship

B. bridgeless barge

C. barge

D. flat deck ship

70. Displacement refers to the _____.70. Displacement refers to the _____.

A. cubic capacity of the vessel

B. deadweight carrying capacity of the vessel

C. gross tonnage of the vessel

D. number of long tons of water displaced by a vessel when afloat

71. The term strake is used in reference to:71. The term strake is used in reference to:

A. rudder mounting

B. vessel framing

C. hull plating

D. anchor gear

72. It is the deck to which all main and It is the deck to which all main and transverse watertight bulkheads are transverse watertight bulkheads are carried.carried.

A. weather deck

B. spar deck

C. bulkhead deck

D. cofferdam

73. Which arrangement of shell plating is Which arrangement of shell plating is used most in modern shipbuilding?used most in modern shipbuilding?

A. Clinker

B. Flush

C. In-and-Out

D. Joggled

74. A large basin cut into the shore, closed 74. A large basin cut into the shore, closed off by a caisson, and used for off by a caisson, and used for drydocking of ships.drydocking of ships.

A. slipway

B. ground warp

C. graving dock

D. caisson dock

75. This plan shows the general outline of 75. This plan shows the general outline of the ship, contour of the stem and stern, the ship, contour of the stem and stern, any sheer of the decks, the deck any sheer of the decks, the deck position and all waterlines in a position and all waterlines in a longitudinal side elevations.longitudinal side elevations.

A. Profile or Sheer plan

B. Body plan

C. Half-Breadth plan

D. Expansion plan

76. What term indicates that the dimension 76. What term indicates that the dimension is measured from the inner face of the is measured from the inner face of the shell or deck plating?shell or deck plating?

A. Register

B. Moulded

C. Tonnage

D. Effective

77. Camber in a ship is usually measured 77. Camber in a ship is usually measured in:in:

A. feet per feet of breadth

B. feet per feet of length

C. inches per feet of breadth

D. inches per feet of length

78. Which cargo plan would you refer to 78. Which cargo plan would you refer to show the ship’s profile and uses block show the ship’s profile and uses block spaces with the name of each spaces with the name of each commodity carried?commodity carried?

A. Block stowage plan

B. Commodity stowage plan

C. Profile plan

D. Deck plan

79. Which scale shows varying drafts and 79. Which scale shows varying drafts and number of tons required to submerge number of tons required to submerge each centimeter of the various drafts?each centimeter of the various drafts?

A. Displacement scale

B. Loading scale

C. Draft scale

D. Deadweight scale

80.80. Which plan would you refer to locate Which plan would you refer to locate the master’s cabin?the master’s cabin?

A. Accommodation plan

B. General arrangement plan

C. Cabin plan

D. Capacity plan

81. What s the ship’s broad profile which 81. What s the ship’s broad profile which gives all data relating to the capacity of gives all data relating to the capacity of the cargo spaces, tanks, bunkers, the cargo spaces, tanks, bunkers, storerooms and location of the center storerooms and location of the center of gravity of each?of gravity of each?

A. Body plan

B. Stowage plan

C. Capacity plan

D. Expansion plan

82. What is the primary causes of 82. What is the primary causes of shipboard fractures?shipboard fractures?

A. Heavy weather

B. Notches and notch-sensitive steel

C. Low temperature

D. Usually high bending moments

83. The strictest loadline regulations 83. The strictest loadline regulations apply to:apply to:

A. gas carrier

B. bulk carrier

C. passenger ships

D. tankers

84. It is the athwartship tank used for the 84. It is the athwartship tank used for the tank stabilizer or anti-rolling tank.tank stabilizer or anti-rolling tank.

A. wing tank

B. centerline bottom tank

C. flume

D. fin tank

85. The term “scantlings” refers to the ___.85. The term “scantlings” refers to the ___.

A. draft of a vessel

B. measurement of structural members

C. requirements for ship’s gear

D. placement of a vessel’s loadline

86. A “chock” is a _________.86. A “chock” is a _________.

A. deck fitting used to secure mooring lines

B. deck fitting used as a fairlead

C. sharp block of wood used to support

hygroscopic cargo

D. smoke pipe for the galley stove

87. The function of the freeing ports on a 87. The function of the freeing ports on a vessel with solid bulwark is to:vessel with solid bulwark is to:

A. prevent stress concentration in the bulwark

B. permit easy jettison of deck cargo in an emergency

C. provide openings through the bulwarks for mooring lines

D. allow water shipped on deck to flow off rapidly

88.88. A fitting, used to secure line or wire A fitting, used to secure line or wire rope, consisting of a single body and rope, consisting of a single body and two protruding horns is called a _____.two protruding horns is called a _____.

A. bitts

B. bollard

C. capstan

D. cleat

89. The number of millimeters by which the 89. The number of millimeters by which the mean draft changes when a ship passes mean draft changes when a ship passes from salt water to fresh water or vice-from salt water to fresh water or vice-versa.versa.

A. fresh water allowance

B. salt water allowance

C. free board allowance

D. density allowance

90. The function of a chock on a vessel with 90. The function of a chock on a vessel with a solid bulwark is to ______.a solid bulwark is to ______.

A. allow water shipped on deck to flow off rapidly

B. permit easy jettison of each cargo in an emergency

C. prevent stress concentration in the bulwark

D. provide openings through the bulwarks for mooring lines

91. The term “ceiling” and “margin plate” 91. The term “ceiling” and “margin plate” are associated with:are associated with:

A. crew’s quarter

B. main deck

C. engine room

D. tank top

92. The projecting lugs of the rudder post 92. The projecting lugs of the rudder post which furnish support to the rudder.which furnish support to the rudder.

A. bases

B. gudgeons

C. pintles

D. rudder lugs

93. What is used to prevent accidental 93. What is used to prevent accidental flooding of a double bottom or peak flooding of a double bottom or peak tanks in the event of a pipe rupture due tanks in the event of a pipe rupture due to collision?to collision?

A. Separate lines are provided for filling and pumping these tanksB. Pipelines must run vertically from the tank to a point above the margin lineC. All tanks must be served by the fewest possible number of pipes to reduced the possibility of ruptureD. A separate line fitted with a non-return valve must be provided for each tank

94. A type of anchor stowed at the stern 94. A type of anchor stowed at the stern hawse pipe is called:hawse pipe is called:

A. stream anchor

B. kedge anchor

C. sheet anchor

D. bower anchor

95. This is a broad term that includes all the 95. This is a broad term that includes all the equipments used for anchoring. It equipments used for anchoring. It includes the anchors, anchor chain, wire includes the anchors, anchor chain, wire rope, shackles, swivels, detachable links, rope, shackles, swivels, detachable links, as well as equipments such as capstan, as well as equipments such as capstan, winch and windlasses.winch and windlasses.

A. windlass tackle

B. anchor system

C. anchor system

D. ground tackle

96. This roller consists of a single 96. This roller consists of a single horizontal or vertical roller mounted on horizontal or vertical roller mounted on a raised platform seat or pedestal.a raised platform seat or pedestal.

A. Multi-angle fairlead

B. Roller fairlead

C. Pedestal fairlead

D. Panama fairlead

97. Steel is the basic shipbuilding material 97. Steel is the basic shipbuilding material in use today. Regarded as iron-carbon in use today. Regarded as iron-carbon alloy, the carbon content cannot exceed alloy, the carbon content cannot exceed ____ percent.____ percent.

A. 2

B. 2.5

C. 3

D. 3.5

98. When the floodable length is multiplied 98. When the floodable length is multiplied by ________, the product is the by ________, the product is the permissible length.permissible length.

A. length between perpendiculars

B. factors of subdivision

C. compartment factor

D. length overall

99. The mass of an object multiplied by its 99. The mass of an object multiplied by its distance from the _______ is equal to its distance from the _______ is equal to its transverse moment.transverse moment.

A. LCG

B. baseline

C. centerline

D. mid-length

100. What is normally provided at the end 100. What is normally provided at the end of the bilge suction line that prevents of the bilge suction line that prevents rubbish from entering the line?rubbish from entering the line?

A. drip well

B. dirt collector

C. non-return valve

D. strum box