单项选择题

Where must the draft marks be placed on a small passenger vessel? （）

A.On each side of the stem
B.Near the stern post or rudder post
C.At each end of the vessel
D.All of the above

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单项选择题

When a vessel is inclined by an external force，the（）.

A.shape of the vessel's underwater hull remains the same
B.vessel's center of gravity shifts to the center of the vessel's underwater hull
C.vessel's center of buoyancy shifts to the center of the vessel's underwater hull
D.vessel's mean draft increases

单项选择题

What should you apply to a fathometer reading to determine the depth of water?（）

A.Subtract the draft of the vessel
B.Add the draft of the vessel
C.Subtract the sea water correction
D.Add the sea water correction

单项选择题

What is NOT an advantage of the house-fall system when compared to a married-fall system using two of the ship’s booms? （）

A.There is a steady spotting area under the dockside block
B.Loading can be accomplished from a narrow apron without endangering the inboard boom
C.The system can be used for working the second deck of a warehouse
D.There is more accurate control of cargo drafts required to be stowed in the wings