单项选择题
The center of flotation of a vessel is（）.
A.the center of volume of the immersed portion of the vessel
B.the center of gravity of the water plane
C.that point at which all the vertical downward forces of weight are considered to be concentrated
D.that point at which all the vertical upward forces of buoyancy are considered to be concentrated
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相关考题
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单项选择题
The center of buoyancy is located at the（）.
A.geometric center of the waterplane area
B.intersection of the vertical centerline and line of action of the buoyant force
C.center of gravity of the vessel corrected for free surface effects
D.geometric center of the displaced volume -
单项选择题
The average of the forward and after drafts is the（）.
A.mean draft
B.true mean draft
C.mean of the calculated drafts
D.draft at the center of flotation -
单项选择题
The angle to which a floating ship，with a negative initial metacentric height，lies while at rest in still water is the angle of（）.
A.trim
B.yaw
C.heel
D.loll
