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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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

單項(xiàng)選擇題

After transferring a weight forward on a vessel, the draft at the center of flotation will（）.

A.change, depending on the location of the LCG
B.increase
C.decrease
D.remain constant