单项选择题
A.a little deeper aft B.a little deeper forward C.at the same draught between fore and aft D.a balance between two sides
If the cause of severe list or trim is off-center balla...
单项选择题If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will（）.
A.increase the righting moment B.increase the righting arm C.increase list or trim D.decrease list or trim
If the buoyant force on a ship’s hull is equal to the d...
单项选择题If the buoyant force on a ship’s hull is equal to the displacement tonnage，the ship will（）.
A.require ballast B.be down by the head C.sink D.float
For an upright vessel，draft is the vertical distance be...
单项选择题For an upright vessel，draft is the vertical distance between the keel and the（）.
A.waterline B.freeboard deck C.plimsoll mark D.amidships section
