单项选择题At all angles of inclination，the metacenter is（）.

A.vertically above the center of buoyancy
B.vertically above the center of gravity
C.at the intersection of the upright vertical centerline and the line of action of the buoyant force
D.at the geometric center of the underwater volume

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1.单项选择题As a ship moves through the water，it causes a wake，which is also moving forward relative to the sea. In addition to a fore and aft motion，this wake also has a(n)（）.

A.downward and inward flow
B.downward and outward flow
C.upward and inward flow
D.upward and outward flow

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2.单项选择题Angular motion about the vertical axis of a vessel is called（）.

A.yaw
B.surge
C.sway
D.roll

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3.单项选择题Angular motion about the longitudinal axis of a vessel is known as（）.

A.pitch
B.surge
C.sway
D.roll

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4.单项选择题All of the following can be determined by use of a stabilogauge EXCEPT（）.

A.metacentric height
B.mean draft
C.moment to trim one inch
D.deadweight

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5.单项选择题A vessel with a small GM will（）.

A.have a large amplitude of roll
B.provide a comfortable ride for the crew and passengers
C.have drier decks in heavy weather
D.be likely to have cargo shift in heavy weather

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6.单项选择题A vessel loads edible oil in a deep tank through a manhole at the midlength of the tank. In order to fill the tank to maximum capacity，what trim should the vessel have?（）

A.Down by the bow
B.Down by the stern
C.Down by either the bow or stern
D.In level trim

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7.单项选择题A vessel is tender if cargo weight is（）.

A.concentrated high and the double bottoms empty
B.concentrated low and the double bottoms empty
C.evenly distributed vertically with the double bottoms full
D.concentrated and with the double bottoms full

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8.单项选择题A vessel is listed when it is（）.

A.down by the head
B.down by the stern
C.inclined due to off-center weight
D.inclined due to wind

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9.单项选择题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.displacement lost acts at the point where the ship is aground

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10.单项选择题A quick and rapid motion of a vessel in a seaway is an indication of a(n)（）.

A.large GM
B.high center of gravity
C.excessive free surface
D.small GZ

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最新试题

If a vessel takes a sudden，severe list or trim from an unknown cause，you should FIRST（）.

题型：单项选择题

In order to determine the trimming arm for your vessel at any particular draft，which of the following would you compare?（）.

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Progressive flooding may be indicated by（）.

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Horizontal fore or aft motion of a vessel is known as（）.

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At an angle of loll，the righting arm (GZ) is（）.

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The existence of liquids in partially full tanks or compartments of a ship causes a virtual rise in the height of the（）.

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For a vessel inclined by the wind，multiplying the buoyant force by the horizontal distance between the lines of action of the buoyant and gravity forces gives the（）.

题型：单项选择题

Semisubmersibles A and B are identical. However，A is more tender than B. This means that A relative to B has a（）.

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If the metacentric height is small，a floating vessel will（）.

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It would be possible that part of the cargo got（）as great change in the weather during the voyage caused heavy（）in the hold.

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