单项选择题
A.increase reserve buoyancy B.decrease the righting moments C.decrease KG D.increase KM
A moment is obtained by multiplying a force by its（）.A....
单项选择题A moment is obtained by multiplying a force by its（）.
A.couple B.lever arm C.moment of inertia D.point of application
A load line is assigned to a ship to insure adequate st...
单项选择题A load line is assigned to a ship to insure adequate stability and（）.
A.mooring tension B.riser tension C.lifesaving equipment D.structural strength
（）refers to the depth of a vessel below the waterline，m...
单项选择题（）refers to the depth of a vessel below the waterline，measured vertically to the lowest part of the hull，propellers or other reference points.
A.Free board B.Stability height C.Metacentric height D.Draft
