Question

Which of the following is a constant quantity for a particular design of machine *

M.A.

Efficiency

V.R.

None of these​

Answer 1

Answer:

For a machine of a given design, due to friction and weight of the moving parts of machine, the velocity ratio does not change, but both mechanical advantage and the efficiency decreases.

Velocity Ratio :

V.R=

V

L

V

E

Answer 2

Answer:

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