單項選擇題

A virtual rise in the center of gravity of a ship may be caused by（）.

A.filling a partially filled tank
B.using fuel from a pressed fuel tank
C.emptying a partially filled tank
D.transferring pipe from the setback area to the pipe rack

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單項選擇題

A vessel is equipped with cross-connected deep tanks. In which situation should the cross-connection valve be closed?（）.

A.The tanks lie above the waterline and are filled
B.The tanks are partially filled with dry cargo
C.The tanks are partially filled with liquid cargo
D.The tanks are filled and lie below the waterline

單項選擇題

A tankerman who permits or causes oil to go into a navigable waterway may be punished federally by（）.

A.fine
B.imprisonment
C.suspension or revocation of tankerman's document
D.All of the above