單項(xiàng)選擇題It is possible,and sometimes necessary,to strengthen the deck of a vessel for carriage of deck cargo by().

A.placing bunker on the deck
B.building a stage on which to place the cargo
C.welding steel feet to the deck,on which the cargo is placed
D.erecting vertical pillars under the deck to support the cargo


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1.單項(xiàng)選擇題In heavy weather you notice buckling in the midships deck plating of your vessel. To relieve the strain you could().

A.pump fuel oil from midships to the ends of the vessel
B.reduce speed
C.take a course which most eases the vessel
D.All of the above

3.單項(xiàng)選擇題If the weights are moved away from the midship section,()will happen on board.

A.hogging
B.sagging
C.stiff
D.tender

4.單項(xiàng)選擇題If the weights are concentrated in the middle part,then()will happen on board the ship.

A.hogging
B.stiffness
C.sagging
D.listing

5.單項(xiàng)選擇題If a vessel is sagging,what kind of stress is placed on the sheer strake?()

A.Compression
B.Tension
C.Thrust
D.Racking