Naval Architecture – MEO CLASS 4 WRITTEN PAPER

31. What is the purpose of cant frames in steel vessels?
    1. To support the overhang of the stern
    2. To provide strength to shell plating at the stern
    3. To add strength to the deck beams which support the weather decks
    4. To support the plating of a cylindrical tank

ANS.: B

32. What is the Fresh Water Allowance?
    1. 5TPC cm
    2. 40TPC cm
    3. 10TPC cm
    4. 20TPC cm

ANS.: B

33. Apparent slip is defined as
    1. s= (PN- V_S)/V_S
    2. s= (PN- V_a)/PN
    3. s= (PN- V_S)/PN
    4. s= (PN- V_a)/V_a

ANS.: C

34. Why the frictional resistance increases when the draft increases?
    1. Dead weight of the vessel increases.
    2. Length of water plane increases.
    3. Wetted surface increases.
    4. Temperature of water reduces as draft increases.

ANS.: C

35. The edge of the propeller which cuts the water first, when the ship is driven ahead is known as ______________
    1. Face                   
    2. Trailing edge
    3. Leading edge  
    4. Driving edge

ANS.: C

36. The lower and the upper stools are provided for bulk carriers: –
    1. with plate type of transverse watertight bulkheads and they normally extend athwart ship from ship side to ship side
    2. with corrugated type of transverse watertight bulkheads and they normally extend athwart ship from ship side to ship side
    3. with plate type of transverse watertight bulkheads and they normally extend athwart ship from one side lower hopper to other side lower hopper
    4. with corrugated type of transverse watertight bulkheads and they normally extend athwart ship from one side lower hopper to other side lower hopper

ANS.: D

37. Which of the following statements is true?
    1. A transom floor need not have the same depth as cellular double bottoms.
    2. Counter or elliptical sterns are most commonly used in merchant ships.
    3. Cant framing when omitted in a cruiser stern and replaced by a flat plate, forms the transom stern.
    4. Cant framing radiating out like spokes of wheel from transom, forms the transom stern

ANS.: C

38. The most common option for propulsion for a medium to large size merchant ship is a:
    1. High speed diesel engine with reduction gear
    2. 4-stroke, Medium Speed diesel engine with reduction gear
    3. 4-stroke, Slow speed diesel engine directly coupled without reduction gear
    4. 2-stroke, Slow speed diesel engine directly coupled without reduction gear

ANS.: D

39. The mass of a ship without cargo, fuel, stores, water, crew etc. that a ship carries is known as:
    1. Deadweight
    2. Lightweight
    3. Displacement
    4. Tonnage

ANS.: B

40. Which of the following must be provided in a shaft tunnel?
    1. A watertight door at the engine room bulkhead.
    2. Escape trunk at the aft end.
    3. A tunnel well for drainage
    4. All of the above

ANS.: D

41. The purpose of providing camber is to:
    1. Improve the appearance of the ship
    2. Help drain off water from deck easily
    3. Reduce the volume of water coming on deck
    4. Help drain tanks to bilges

ANS.: B

42. Deep tanks are tested by:
    1. Hose test
    2. Filling them with water up to maximum level
    3. Filling them with water up to maximum head, which will come on them, i.e. to the top of the air pipe or 2.45 above the crown of the tank whichever is higher
    4. Filling them with water up to maximum head, which will come on them, i.e. to the top of the air pipe or 2.45 above the crown of the tank whichever is lower.

ANS.: C

43. Thickness of strakes of bottom plating is increased in which of the following regions of the ship?
    1. Pounding region
    2. Over 40% of ship’s length amidships
    3. Over 40% of ships length forward
    4. Both A and B

ANS.: D

44. What is “POSITION 1” according to the LOAD LINE RULE?
    1. The freeboard deck or a raised quarter-deck;
    2. A superstructure deck or a trunk deck forward of a point one-quarter of the vessel’s length from the forward perpendicular;
    3. A trunk deck that is less than standard height above the freeboard deck

ANS.: A

45. Cyclic Up & Down Movement of Vessel along the vertical axis
    1. Heaving
    2. Yawing
    3. Swaying
    4. Pitching

ANS.: A

47. Hatch Coaming Minimum height? (450 mm if from superstructure)
    1. 600 mm
    2. 800 mm
    3. 1000 mm
    4. 1100 mm

ANS.: A

48. What is The Effect on BUOYANCY when the ship goes to Fresh Water (for same Displacement)?
    1. Increases
    2. Decreases
    3. Remains same
    4. Can’t say

ANS.: B

49. Reserve buoyancy is more in
    1. Fresh water
    2. Sea water
    3. Brackish water
    4. Remains same

ANS.: B

52. Panting arrangements are usually fitted up to __________ percent of ship’s length abaft the stem.
    1. 10
    2. 20
    3. 15
    4. 25

ANS.: C

53. Top of Form

In longitudinally framed double bottoms, solid plate floors are fitted at _________ frame space in pounding region and at ________frame space under the main engine.

1. Alternate, every 
2. Alternate, alternate 
3. Every, every 
4. Every, alternate

ANS.: A

54.  In transversly framed double bottoms, solid plate floors are fitted at _________ frame space in pounding region and at ________frame space under the main engine.

1. Alternate, every 
2. Alternate, alternate 
3. Every, every 
4. Every, alternate

ANS.: C

55. as per the condition of assignment of port holes. no of portholes are allowed to be fitted below_______% of the ships_________or__________mm.

1. 1,length,300mm
2. 3.5,depth,6oomm
3. 2.5,breadth,500mm
4. 4,summer draft,760mm

ANS.: C

56. Water survey is done on __________

a)5th anniversary
b)4th
c)3rd
d)2nd

ANS.: C

57. Forward stem and aft plate are separated by

a) Coffin plate
b) stealer plate
c) shoe plate
d) strug plate

ANS.: D

58. As per condition of assignment all discharge from above or below the free board deck from enclosed space are

1. to be lead directly overboard
2. to be lead to engine room bilge tank
3. to have an efficient non return arrangement
4. None

ANS.: C

59. What is it seen when a Propeller is seen from the Aft end…

1. Leading edge
2. Trailing Edge
3. Bow
4. Tail

ANS.: B

60. Left hand propeller on those turn_____________ when producing ahead thrust

1. Viewed from aft clock wise
2. aft anti clockwise
3. fwd anti clockwise
4. None of the above

ANS.: B