A.center of buoyancy
B.center of flotation
C.uncorrected height of the center of gravity of the vessel
D.center of gravity of the vessel corrected for free surface effects
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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
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
A.mean draft
B.true mean draft
C.mean of the calculated drafts
D.draft at the center of flotation
A.trim
B.yaw
C.heel
D.loll
A.lighter／large
B.light／larger
C.lighter／larger
D.light／large
最新試題
The center of the underwater volume of a floating vessel is the（）.
On a semisubmersible ship，reserve buoyancy is increased by the presence of void spaces above the waterline in the（）.
It is apparent that there was not sufficient depth of water（）and I claim that the estimated arrival draft as radioed to the agent to report to you was a close one.
For a floating vessel，true mean draft is always the（）.
The average of the forward and after drafts is the（）.
Owing to the big draft，the ship is not permitted to go alongside until the time of（）.
Reserve buoyancy is the（）.
The controlling depth of the river is（）.
For an upright vessel，draft is the vertical distance between the keel and the（）.
If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will（）.