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單項選擇題

To calculate the free surface correction，it is necessary to divide the free-surface moments by the（）.

A.total weight of liquid loads
B.total displacement
C.lightweight
D.deadweight

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單項選擇題

The waterplane area is described as the intersection of the surface of the water in which a vessel floats and the（）.

A.baseline
B.vertical reference plane
C.hull
D.horizontal reference plane

單項選擇題

The volume of watertight spaces of a vessel above its waterline is the vessel’s（）.

A.free surface
B.marginal stability
C.reserve buoyancy
D.freeboard

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