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
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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
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
最新試題
The center of buoyancy is located at the().
Intact buoyancy is a term used to describe().
On a semisubmersible ship,reserve buoyancy is increased by the presence of void spaces above the waterline in the().
For a floating vessel,true mean draft is always the().
Owing to the big draft,the ship is not permitted to go alongside until the time of().
The center of the underwater volume of a floating vessel is the().
Reducing the liquid free surfaces in a vessel reduces the().
A vessel would be referred to as tender when the weight of the cargo is().
In the absence of external forces,the center of buoyancy of an inclined vessel is vertically aligned directly below the().
For an upright vessel,draft is the vertical distance between the keel and the().