1) Air pipes in tanks are generally located:
A.Near filling pipes
B.Near pump suctions
C.At the opposite end of filling pipes and/or the highest point in the tank
D.At the lowest point in the tank
2) The surface of each blade of propeller when viewed from aft is known as the __________________
A.Back
B.Leading edge
C.Trailing edge
D.Face
3) The cyclic angular motion of a ship about the ford ???aft axis under the action of waves is known as:
A.Pitching
B.Yawing
C.Rolling
D.Heaving
4) Curves of immersed cross-sectional area of a ship , plotted against draught for each transverse section ,
are known as
A.Cross curves of Stability
B.Displacement Curves
C.Hydrostatic Curves
D.Bonjean Curves
5) Peak tanks are tested by:
A Hose test
B.By filling them with water up to load water line
C.By filling them with water up to the maximum head which can come on them in practice or 2.44 m above tank crown, whichever is higher
D.None of the above
6) Plates used to connect stern frames to flat plate keel are called:
A.Shoe plates
B.Coffin plates
C.Stealer plates
D.Boss plates
7) Thickness of strakes of bottom plating is increased in which of the following regions of the ship?
A.Pounding region
B.Over 40% of ship???s length amidships
C.Over 40% of ships length forward
D.Both A and B
8) In a shell expansion plan, plate D5 refers to:
A.Fourth plate from aft and fifth strake from keel
B.Fifth plate from aft and fourth strake from the keel
C.Fourth plate from forward and fifth strake from keel
D.Fifth plate from forward and fourth strake from keel
9) The mass of a ship without cargo, fuel, stores, water, crew etc that a ship carries is known as:
A.Deadweight
B. Lightweight
C.Displacement
D.Tonnage
10) Why the frictional resistance increases when the draft increases?
A.Dead weight of the vessel increases.
B.Length of water plane increases.
C.Wetted surface increases.
D.Temperature of water reduces as draft increases.
11) As per conditions of assignments, the minimum height of air pipe openings must be ________ on the freeboard deck
A.380 mm
B.450 mm
C.600 mm
D.760 mm
12) The primary purpose of fitting a bulbous bow is to:
A.Improve the appearance of the ship.
B.Strengthen the bow
C.Improve propulsive efficiency
D.Improve resistance to pounding
13) The purpose of providing tumble home is to:
A.Improve the appearance of the ship
B.Help drain off water from deck easily
C.Reduce the volume of water coming on deck
D.Help drain tanks to bilges
14) GM of ship will change with
a) Shifting of weight longitudinally
b) Shifting of weight transversely
c) Shifting of weight vertically
d) All of the above
15) In longitudinally framed double bottoms, in frame spaces where there are no solid floors, the brackets
on tank sides and center girder should not be more than ___________ apart.
A.2.5m
B.3.7m
C.3.8m
D.1.25m
16) In longitudinally framed double bottoms, solid plate floors are fitted at _________ frame space in pounding region and at ________frame space under the main engine.
A.Alternate, every
B.Alternate, alternate
C.Every, every
D.Every, alternate
17) kg of ship increases with...
a) adding weight above on present kg
b)balasting db tank
c)moving weight in transverse direction
d)moving weight in frwd direction
18.in shipco beam bracket are triangular plates joining the deck beam to a.
a. bulkhead
b. frame
c. stanchion
d. deck longitudinal
19.the bleeder plug or docking plug located on a motor vessel double
bottom tank is used to
1 indicate when the tank is pressed up
2 provide a secondary means of tank sounding
3 vent air from the tank when bunkering.
4 empty the tank when in dry dock
20). vertical support member used to strengthen bulkheads are called
a stiffner
b panels
c brackets
d stanchions
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