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1) Typically power through a gearbox can be defined as: A. Varying but torque is

ID: 1504114 • Letter: 1

Question

1) Typically power through a gearbox can be defined as:

A. Varying but torque is constant throughout geartrain

B. Constant except for losses

C. Varies with speed change

D. All of the above

2) To find the efficiency of a system you

Divide the power out by the power in

Divide power losses by power out

Divide power out (minus losses) by power in

All of the above

None of the above

A.

Divide the power out by the power in

B.

Divide power losses by power out

C.

Divide power out (minus losses) by power in

D.

All of the above

E.

None of the above

Explanation / Answer

1) Varies with speed change because when more accelerated the gear the are more cycle in the same time and the work increase.(c)

2) Efficency= Power out/ power in