单项选择题

In the absence of external forces，adding weight on one side of a floating vessel causes the vessel to（）.

A.heel until the angle of loll is reached
B.list until the center of buoyancy is aligned vertically with the center of gravity
C.trim to the side opposite TCG until all moments are equal
D.decrease draft at the center of flotation

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单项选择题In the absence of external forces，the center of gravity of a floating vessel is located directly above the（）.

A.metacenter
B.amidships
C.center of flotation
D.geometric center of the displaced volume

单项选择题The ship’s draught forward is same as her draught aft.This condition is named as（）.

A.even keel
B.even trim
C.even draught
D.even float

单项选择题The ship’s draught forward is slightly deeper than the draught aft．This condition is called（）in shipping terms.

A.trim by the head
B.trim by the stern
C.even keel
D.drafts different