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[单选题]船舶横倾前后,重力和浮力(),浮心位置()。
A. A.大小相等;不变
B. B.大小不等;改变
C. C.大小相等;改变
D. D.大小不等;不变
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[单选题]某轮漂心在船中前,则船舶的船中平均吃水()船舶等容平均吃水。
A. A.大于
B. B.小于
C. C.等于
D. D.不能确定
[单选题]A load line is assigned to a ship to insure adequate stability and().
A. mooring tension
B. riser tension
C. lifesaving equipment
D. structural strength
[单选题]A moment is obtained by multiplying a force by its().
A. couple
B. lever arm
C. moment of inertia
D. point of applicatio
[单选题]Aboard a ship,multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in the load’s().
A. LCG
B. transverse moment
C. righting moment
D. inclining moment
[单选题]If the vertical center of gravity (VCG) of a ship rises 1.7 feet,the righting arm (GZ) for the various angles of inclination will().
A. decrease
B. increase
C. remain unchanged
D. be changed by the amount of GG' x cosine of the angle
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