网友您好， 请在下方输入框内输入要搜索的题目：
题目内容
（请给出正确答案）
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
参考答案
参考解析
解析：
暂无解析
更多 “单选题A moment is obtained by multiplying a force by its（）.A coupleB lever armC moment of inertiaD point of application” 相关考题
考题
The budgeted cost of the work performed (BCWP) for a task that has just been completed can be calculated by:A . Multiplying the actual hours worked on the project by the budgeted labor rate.B . Multiplying the budgeted hours to complete the task by the budgeted labor rate.C . Dividing the actual hours required to complete the task by the budgeted labor rate.D . Cannot be determined.E . None of the above
考题
159 The budgeted cost of the work performed (BCWP) for a task that has just been completed can be calculated by:A. Multiplying the actual hours worked on the project by the budgeted labor rate.B. Multiplying the budgeted hours to complete the task by the budgeted labor rate.C. Dividing the actual hours required to complete the task by the budgeted labor rate.D. Cannot be determined.E. None of the above
考题
Britain, under the leadership of (), defeated Germany's attempt to destroy its air force and air defenses in the Battle of Britain and escaped invasion.
A.Winston ChurchillB.Queen ElizabethC.the KingD.Wilson Churchill
考题
Which term means “the profit that a company has obtained from selling its products or services in a particular period of time, in relation to its sales for the period”?
A、Annual incomeB、operation profitC、return on salesD、net profit
考题
The righting moment can be determined by multiplying the displacement by the ______．A.vertical center of gravity（KG）B.longitudinal center of gravity（LCG）C.righting arm（GZ）D.center of gravity（CG）
考题
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
考题
A vessel’s KG is determined by ______.A.dividing the total longitudinal moment summation by displacementB.dividing the total vertical moment summation by displacementC.multiplying the MTl by the longitudinal momentsD.subtracting LCF from LCB
考题
Aboard a vessel, multiplying a load’s weight by the distance of the load’s center of gravity from the mid-ship section results in the load’s ______.A.LCGB.longitudinal momentC.righting momentD.inclining moment
考题
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 ______.A.righting momentB.longitudinal momentC.transverse momentD.vertical moment
考题
Even though its economy continues to recover,the US is increasingly becoming a nation of part‐timers and temporary workers.This“disposable”work force is the most important（ ）in American business today,and it is fundamentally changing the relationship between people and their jobs.A.approach
B.flow
C.fashion
D.trend
考题
One day a man found a cocoon （茧） of a butterfly in the forest. He sat there for several
hours and watched the butterfly. Suddenly a small opening appeared, and the butterfly made its great effort to force its body through that little hole. Then it seemed to stop making any progress. It appeared as if it had gotten as far as it could and it could go no further.
So the man decided to help the butterfly. He cut off the remaining bit of the cocoon so that the butterfly could come our easily. But to his surprise, the butterfly got a heavy body and very small wings when it came out of the cocoon.
The man continued to watch the butterfly because he expected that the body would grow smaller at any moment and the wings would become larger and be able to fly. But neither happened! In fact, the butterfly spent the rest of its life crawling （爬） around with a heavy body and small wings. It was never able to fly.
The man was in his kindness, but he did not understand the nature rules.
Before the butterfly came out of the cocoon, fluid （流体） from its body must be forced into its wings, and then it would be ready for flying. It must have a hard struggle （拼搏） to get through the small opening to get its freedom from the cocoon.
Sometimes struggles are exactly what we need in our life. If God allowed us to go through our life without any difficulties, it would make us fail. We would not be as strong as we could have been; we could never fly.
The man cut off the remaining bit of the cocoon ____.
A. to take the butterfly home
B. to help the butterfly come out easily
C. to kill the butterfly
D. to stop the butterfly growing bigger
考题
One day a man found a cocoon （茧） of a butterfly in the forest. He sat there for several
hours and watched the butterfly. Suddenly a small opening appeared, and the butterfly made its great effort to force its body through that little hole. Then it seemed to stop making any progress. It appeared as if it had gotten as far as it could and it could go no further.
So the man decided to help the butterfly. He cut off the remaining bit of the cocoon so that the butterfly could come our easily. But to his surprise, the butterfly got a heavy body and very small wings when it came out of the cocoon.
The man continued to watch the butterfly because he expected that the body would grow smaller at any moment and the wings would become larger and be able to fly. But neither happened! In fact, the butterfly spent the rest of its life crawling （爬） around with a heavy body and small wings. It was never able to fly.
The man was in his kindness, but he did not understand the nature rules.
Before the butterfly came out of the cocoon, fluid （流体） from its body must be forced into its wings, and then it would be ready for flying. It must have a hard struggle （拼搏） to get through the small opening to get its freedom from the cocoon.
Sometimes struggles are exactly what we need in our life. If God allowed us to go through our life without any difficulties, it would make us fail. We would not be as strong as we could have been; we could never fly.
What was the butterfly doing at the beginning of the story?
A. It was trying to make a cocoon for itself.
B. It was struggling to get out of its cocoon.
C. It was flying among the trees in the forest.
D. It was crawling around quietly on the ground.
考题
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
考题
单选题The magnitude of a moment is the product of the force and（）.A
timeB
lever armC
displacementD
angle of inclination
考题
单选题The moment of a force is a measure of the（）.A
turning effect of the force about a pointB
instantaneous value of the forceC
stability characteristics of the vesselD
center of gravity location
考题
单选题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（）.A
righting momentB
vertical momentC
longitudinal momentD
transverse moment
考题
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 the load’s（）.A
TCGB
transverse momentC
righting momentD
transverse free surface moment
考题
单选题A tank 36 ft. by 36 ft. by 6 ft. is filled with water to a depth of 5 ft. If a bulkhead is placed in the center of the tank running fore-and-aft along the 36-foot axis，how will the value of the moment of inertia of the free surface be affected?（）A
The moment of inertia would remain unchangedB
The moment of inertia would be 1/4 its original valueC
The moment of inertia would be 1/2 the original valueD
None of the above
考题
单选题Which of the following statements about pump operations is NOT a correct statement?（）A
In order for a fluid to be pumped, a fluid must be made to flowB
A substance must be cold in order for it to be pumpedC
The kinetic energy imparted by the pump can be used to force a liquid through a hydraulic systemD
A pump must receive its energy from an external source
考题
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
transverse momentC
righting momentD
transverse free surface moment
考题
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
考题
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
考题
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
longitudinal stability
考题
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
考题
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
考题
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
考题
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
热门标签
最新试卷
