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單項選擇題

The center of buoyancy and the metacenter are in the line of action of the buoyant force（）.

A.only when there is positive stability
B.only when there is negative stability
C.only when there is neutral stability
D.at all times

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單項選擇題

The amount of freeboard which a ship possesses has a tremendous effect on its（）.

A.initial stability
B.free surface
C.stability at large angles of inclination
D.permeability

單項選擇題

Load line regulations are designed to insure that a vessel has adequate structural strength and sufficient（）.

A.lifesaving equipment
B.stability
C.mooring tension
D.riser tension

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