單項(xiàng)選擇題

A vessel’s KG is determined by（）.

A.dividing the total longitudinal moment summations by displacement
B.dividing th etotal vertical moment summation by displacement
C.multiplying the MT1 by the longituinal moments
D.subtracting LCF from LCB

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單項(xiàng)選擇題

A vesel’s LCG is determined by（）.

A.dividing the total longitudinal moment summations by displacement
B.dividing th etotal vertical moment summation by displacement
C.multiplying the MTC by the longituinal moments
D.subtracting LCF from LCB

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