A.lower than the keel
B.at the same height as the center of gravity
C.exactly at midships
D.at the center of the waterplane area
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A.Subtract the draft of the vessel
B.Add the draft of the vessel
C.Subtract the sea water correction
D.Add the sea water correction
A.On each side of the stem
B.Near the stern post or rudder post
C.At each end of the vessel
D.All of the above
A.shape of the vessel's underwater hull remains the same
B.vessel's center of gravity shifts to the center of the vessel's underwater hull
C.vessel's center of buoyancy shifts to the center of the vessel's underwater hull
D.vessel's mean draft increases
A.minimum freeboard
B.GM
C.transverse stability
D.fresh water allowances
A.height of the metacenter
B.height of the righting arm
C.height of the center of buoyancy
D.metacentric height
A.time
B.lever arm
C.displacement
D.angle of inclination
A.total weight of liquid loads
B.total displacement
C.lightweight
D.deadweight
A.free surface
B.marginal stability
C.reserve buoyancy
D.freeboard
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.decrease
B.increase
C.remain unchanged
D.be changed by the amount of GG' x cosine of the angle
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Beams are cambered to（）.
The magnitude of a moment is the product of the force and（）.
The upward pressure of displaced water is called（）.
The volume of watertight spaces of a vessel above its waterline is the vessel’s（）.
An unstable upright equilibrium position on a vessel means that the metacenter is（）.
The ship should have a slightly deeper draft（）.
For a floating vessel，the result of subtracting KG from KM is the（）.
To calculate the free surface correction，it is necessary to divide the free-surface moments by the（）.
Load line regulations are designed to insure that a vessel has adequate structural strength and sufficient（）.
When a vessel is inclined by an external force，the（）.