單項選擇題My drafts are 28 feet()and 29 feet aft.

A.fore
B.advance
C.before
D.beforehand


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1.單項選擇題Keeping the draft at or below the load line mark will insure that the vessel has adequate().

A.ballast
B.reserve buoyancy
C.displacement
D.rolling periods

2.單項選擇題It’ll affect neither the draft()the rotation of discharging.

A.or
B.and
C.nor
D.either

3.單項選擇題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.

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

4.單項選擇題Intact buoyancy is a term used to describe().

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

5.單項選擇題In the absence of external forces,the center of buoyancy of an inclined vessel is vertically aligned directly below the().

A.center of gravity
B.amidships station
C.center of flotation
D.geometric center of the waterplane area