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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 application
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考题
单选题The magnitude of a moment is the product of the force and（）.A
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TCGB
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righting momentD
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单选题Which of the following statements about pump operations is NOT a correct statement?（）A
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A substance must be cold in order for it to be pumpedC
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A pump must receive its energy from an external source
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单选题Aboard a vessel, multiplying a load’s weight by the distance of the load’s center of gravity from the centerline results in th eload’s（）.A
TCGB
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righting momentD
transverse free surface moment
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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
LCGB
transverse momentC
righting momentD
inclining moment
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单选题On notification by Admiralty Notice to Mariners that a new edition of one of the books，or a new supplement to one，has been published，it should be obtained（）.A
as soon as possibleB
prior to its publicationC
in advance of any possible accidentD
by means of other than airmails
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单选题The tendency of a vessel to return to its original trim after being inclined by an external force is（）.A
equilibriumB
buoyancyC
transverse stabilityD
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单选题On a vessel，multiplying a load’s weight by the distance of the load’s center of gravity above the baseline results in a(n)（）.A
transverse momentB
vertical momentC
righting momentD
inclining moment
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单选题When a wind force causes a floating ship to heel to a static angle，the（）.A
centers of buoyancy and gravity are in the same vertical lineB
righting moment equals the wind-heeling momentC
downflooding point is below waterD
deck-edge immersion occurs
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单选题（）is the tendency of a vessel to return to its original position after it is displaced therefrom.A
Inclining momentB
StabilityC
Shearing forceD
Bending moment
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单选题选择适当的用语补充对话。（） ——What did you feel during the massage？ ——I am feel comfortable____________.A
The force is too heavyB
The force is too bigC
The force is too lightD
The force is too suitable
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