單項選擇題A vertical shife of weight to a position above the vessel''s center of gravity will（）.

A.increase reserve buoyancy
B.decrease the righting moment
C.decrease KG
D.increase KM


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1.單項選擇題A vessel aground may have negative GM since the（）.

A.decrease in KM is equal to the loss of draft
B.virtual rise of G is directly proportional to the remaining draft
C.lost buoyancy method is used to calculate KM, and KB is reduced
D.displa ement lost acts at the point where the ship is aground

2.單項選擇題A vessel continually lists to one side and has a normal rolling period. Which statement is true?（）.

A.The vessel has negative GM
B.The center of gravity is on the centerline
C.The list can be corrected by reducing KM
D.The vessel has asymmetrical weight distribution

3.單項選擇題A vessel has a strong wind on the port beam. This has the same affect on stability as（）.

A.weight that is off-center to starboard
B.increasing the draft
C.reducing the freeboard
D.increasing the trim

4.單項選擇題A vessel has an amidships superstructure. Which location would be most suitable for ondeck stowage of automobiles?（）.

A.On top of No.1 hatch
B.Beside the hatches, forward of the midships house
C.On top of the hatch immediately forward of the midships house
D.On top of the hatch immediately aft of the midships house

5.單項選擇題A vessel in ocean service that does not have an approved means of processing oily bilge slops or oily ballast must have（）.

A.a fixed piping system for ballast discharge to a reception facility
B.a discharge outlet for the ballast system on each side of the weather deck
C.one portable adapter for a shore connection to the ballast line
D.All of the above