单项选择题

Aboard damaged vessels，the MOST important consideration is preserving（）.

A.bilge pumping capacity
B.reserve buoyancy
C.level attitude
D.instability

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单项选择题

A vessel has a strong wind on the port beam. This has the same affect on stability as（）.

A.weight that is off-center to starboard
B.increasing the draft
C.reducing the freeboard
D.increasing the trim

单项选择题

A flooded leg on a lift boat would adversely affect the vessel’s stability underway by（）.

A.increasing the righting moment
B.decreasing the vessel's displacement
C.increasing the reserve buoyancy
D.shifting the CG (center of gravity) off center