單項(xiàng)選擇題

A virtual rise in the center of gravitty may be caused by（）.

A.filling a partially tank
B.using an on board crane to life a freely swinging heavy object
C.emptying a partially filled tank
D.transferring ballast from the forepeak to the after peak

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單項(xiàng)選擇題

Aboard a vessel, dividing the sum of the vertical moment by the total weight yields the vessel’s（）.

A.vertical moment
B.transverse position of the center of gravity
C.inclining moment
D.righting moment

單項(xiàng)選擇題

Aboard a vessel, dividing the sum of the vertical moments by the total weight yields the vessel’s（）.

A.height of the center of gravity A.LCG
B.vertical moment
C.righting moment
D.inclining moment