單項選擇題

Reserve buoyancy is（）.

A.also called GM
B.the void portion of the ship below the waterline which is enclosed and watertight
C.affected by the number of transverse watertight bulkheads
D.the watertight portion of a vessel above the waterline

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單項選擇題

Reducing the liquid free surfaces in a vessel reduces the（）.

A.roll period
B.metacentric height
C.waterplane area
D.vessel's draft

單項選擇題

Owing to the big draft，the ship is not permitted to go alongside until the time of（）.

A.ebb tide
B.flood tide
C.spring tide
D.slack water

Reserve buoyancy is（）.

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Reducing the liquid free surfaces in a vessel reduces the（）.

Owing to the big draft，the ship is not permitted to go alongside until the time of（）.

Owing to the big draft，the ship is not permitted to go alongside until the time of（）.