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
Shifting weight aft in heavy weather will reduce the tendency to yaw，but may increase the tendency to（）.
Reserve buoyancy is（）.
Although KG for a ship in lightweight is relatively high，the vessel is stiff because（）.
Aboard a ship，multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in the load’s（）.
On a semisubmersible ship，reserve buoyancy is increased by the presence of void spaces above the waterline in the（）.
My drafts are 28 feet（）and 29 feet aft.
If the buoyant force on a ship’s hull is equal to the displacement tonnage，the ship will（）.
If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will（）.
For a floating vessel，true mean draft is always the（）.
For an upright vessel，draft is the vertical distance between the keel and the（）.