單項(xiàng)選擇題Aboard damage vessels, the most important consideration is preserving().

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


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2.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

3.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

4.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

5.單項(xiàng)選擇題After the initial cleaning of fule gas in an inert gas system is passed through what devoce for final cleaning?().

A.Scrubber
B.Demister
C.Deck water seal
D.Final filter