If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will（）.

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

点击查看答案&解析

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

点击查看答案&解析