单项选择题
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
For a floating vessel，true mean draft is always the（）.A...
单项选择题For a floating vessel，true mean draft is always the（）.
A.average of the observed drafts B.draft at the center of flotation C.draft corresponding to the calculated displacement D.mean of the calculated drafts
