單項(xiàng)選擇題

Addition of weight above the center of gravity of a vessel will always（）.

A.reduce initial stability
B.increase righting moments
C.increase GM
D.All of the above

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單項(xiàng)選擇題

Addition of weight to a vessel will always（）.

A.reduce reserve buoyancy
B.increase righting moments
C.increase GM
D.All of the above

單項(xiàng)選擇題

After riveting is completed, the joints on the shell of a vessel are generally made watertight by（）.

A.faying
B.caulking
C.felt or canvas packing
D.red lead

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