A vessel is inclined at an angle of loll. In the absence of

A vessel is inclined at an angle of loll. In the absence of external forces，the righting arm (GZ) is ______.

A.positive

B.negative

C.zero

D.vertical

With no environmental forces acting on the vessel，the center of gravity of an inclined vessel is vertically aligned with the ______．

A.longitudinal centerline

B.center of flotation

C.original vertical centerline

D.metacenter

In the absence of external forces，adding weight on one side of a floating vessel causes the vessel to ().

A.heel until the angle of loll is reached

B.list until the center of buoyancy is aligned vertically with the center of gravity

C.trim to the side opposite TCG until all moments are equal

D.decrease draft at the center of flotation

In the presence of external forces, the center of buoyancy of an inclined vessel is vertically aligned with the ______.

A.center of gravity

B.metacenter

C.center of flotation

D.Keel

For a vessel with list, a decrease in GMT will cause the angle of inclination to ______.

A.stabilize at angle of loll

B.decrease

C.increase

D.remain constant

An upright vessel has negative GM．GM becomes positive at the angle of loll because the ______．

A.Free surface effects are reduced due to pocketing

B.KG is reduced as the vessel seeks the angle of loll

C.Effective beam is increased causing BM to increase

D.Underwater volume of the hull is increased

For a floating vessel, the center of flotation is the point in the waterplane ______.

A.about which the vessel lists and trims

B.which coincides with the center of buoyancy

C.which, in the absence of external forces, is always vertically aligned with the center of gravity

D.which is shown in the hydrostatic tables as VCB

A vessel is "listed" when it is ______.

A.down by the head

B.down by the stern

C.inclined due to off-center weight

D.inclined due to wind

For a vessel with longitudinal inclination, an increase in GML causes ______.

A.list to stabilize at an angle of loll

B.trim to stabilize at an angle of loll

C.trim to increase

D.trim to decrease