Mechanical Engineering > GATE 2022 SET-1 > Machine Design
A square threaded screw is used to lift a load W by applying a force F. Efficiency of the square threaded screw is expressed as?
A
The ratio of work done by W per revolution to work done by F per revolution
B
W/F
C
F/W
D
The ratio of work done by F per revolution to work done by W per revolution

Correct : a

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