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Engineering Mechanics - Engineering

Q1:

Which of the following statement is incorrect?

A A force acting in the opposite direction to the motion of the body is called force of friction.

B The ratio of the limiting friction to the normal reaction is called coefficient of friction.

C A machine whose efficiency is 100% is known as an ideal machine.

D The velocity ratio of a machine is the ratio of load lifted to the effort applied.

ANS:D - The velocity ratio of a machine is the ratio of load lifted to the effort applied.

Explanation: No answer description is available.