A.metacenter
B.center of buoyancy
C.center of flotation
D.center of gravity
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A.the load line becomes submerged
B.a non-watertight opening is at still water level
C.offset becomes excessive
D.reserve buoyancy is a maximum
A.metacentric height
B.height of the righting arm
C.fore and aft perpendicular
D.height of the center of buoyancy
A.list
B.heel
C.trim
D.flotation
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.pitching
B.yawing
C.rolling
D.tracking
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For a vessel inclined by the wind，multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives the（）.
At an angle of loll，the capsizing moment is（）.
If the metacentric height is large，a floating vessel will（）.
The difference between the height of the metacenter and the height of the center of gravity is known as the（）.
Horizontal fore or aft motion of a vessel is known as（）.
Progressive flooding may be indicated by（）.
Bilge keels are more effective at dampening rolls as the（）.
The difference between the forward and aft drafts is（）.
If the metacentric height is small，a floating vessel will（）.
If a vessel takes a sudden，severe list or trim from an unknown cause，you should FIRST（）.