A.ballast
B.reserve buoyancy
C.displacement
D.rolling periods
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A.or
B.and
C.nor
D.either
A.for my vessel crossing safely
B.my vessel is to cross safely
C.for my vessel to cross safely
D.for my vessel's crossing safely
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
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
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Some cargoes are（）in weight but（）in size.
If the buoyant force on a ship’s hull is equal to the displacement tonnage，the ship will（）.
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.
After transferring a weight forward on a vessel，the draft at the center of flotation will（）.
In practice，it is usual for the ship to be loaded（）to improve the vessel’s movement through the water.
The center of the underwater volume of a floating vessel is the（）.
Although KG for a ship in lightweight is relatively high，the vessel is stiff because（）.
The center of volume of the immersed portion of the hull is called the（）.
In the absence of external forces，the center of buoyancy of an inclined vessel is vertically aligned directly below the（）.
On a semisubmersible ship，reserve buoyancy is increased by the presence of void spaces above the waterline in the（）.