A.the volume of all intact spaces above the waterline
B.an intact space below the surface of a flooded area
C.an intact space which can be flooded without causing a ship to sink
D.the space at which all the vertical upward forces of buoyancy are considered to be concentrated
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A.center of gravity
B.amidships station
C.center of flotation
D.geometric center of the waterplane area
A.a little deeper aft
B.a little deeper forward
C.at the same draught between fore and aft
D.a balance between two sides
A.increase the righting moment
B.increase the righting arm
C.increase list or trim
D.decrease list or trim
A.require ballast
B.be down by the head
C.sink
D.float
A.waterline
B.freeboard deck
C.plimsoll mark
D.amidships section
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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.
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（）.
The controlling depth of the river is（）.
If the buoyant force on a ship’s hull is equal to the displacement tonnage，the ship will（）.
A vessel is tender if cargo weight is（）.
If the cause of severe list or trim is off-center ballast，counterflooding into empty tanks will（）.
Reducing the liquid free surfaces in a vessel reduces the（）.
Some cargoes are（）in weight but（）in size.
Although KG for a ship in lightweight is relatively high，the vessel is stiff because（）.
The difference between the initial trim and the trim after loading is known as（）.