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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The controlling depth of the river is（）.
The difference between the initial trim and the trim after loading is known as（）.
In practice，it is usual for the ship to be loaded（）to improve the vessel’s movement through the water.
Aboard a vessel，multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in the load’s（）.
The center of volume of the immersed portion of the hull is called the（）.
After transferring a weight forward on a vessel，the draft at the center of flotation will（）.
The center of buoyancy is located at the（）.
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（）.
Allowance for fresh water for all freeboards other than timber 25mm. This wording is likely to appear in（）.
A vessel would be referred to as tender when the weight of the cargo is（）.