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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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
A.be pooped
B.pitchpole
C.broach
D.squat
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The controlling depth of the river is（）.
It’ll affect neither the draft（）the rotation of discharging.
Owing to the big draft，the ship is not permitted to go alongside until the time of（）.
Reserve buoyancy is（）.
On the cargo manifest，the gross weight of a box containing cargo is the weight of the（）.
Reserve buoyancy is the（）.
A vessel would be referred to as tender when the weight of the cargo is（）.
Allowance for fresh water for all freeboards other than timber 25mm. This wording is likely to appear in（）.
Reducing the liquid free surfaces in a vessel reduces the（）.
For an upright vessel，draft is the vertical distance between the keel and the（）.