單項選擇題The angle of loll is a stability term which applies to a floating ship with（）.

A.off-center loading
B.stiff characteristics
C.excessive pitch or roll
D.negative initial stability


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1.單項選擇題Stability is determined principally by the location of two points in a vessel: the center of buoyancy and the（）.

A.metacenter
B.geometric center of the waterplane area
C.center of gravity
D.center of flotation

2.單項選擇題Stability is determined principally by the location of the center of gravity and the（）.

A.aft perpendicular
B.center of buoyancy
C.keel
D.center of flotation

3.單項選擇題Stability is determined principally by the location of the point of application of two forces: the downward-acting gravity force and the（）.

A.upward-acting weight force
B.downward-acting weight force
C.upward-acting buoyant force
D.environmental force

4.單項選擇題Stability is determined by the relationship of the center of gravity and the（）.

A.water depth
B.keel
C.center of flotation
D.center of buoyancy

5.單項選擇題Repair of vital machinery and services on a ship should be accomplished（）.

A.after control of fire，flooding，and structural repairs
B.immediately
C.after control of fire，but before control of flooding
D.after stability is restored