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A machine has a velocity ratio of 5. It requires a 50kg weight to overcome a 200...


Question

A machine has a velocity ratio of 5. It requires a 50kg weight to overcome a 200kg weight. The efficiency is

Options

A) 4%

B) 5%

C) 40%

D) 50%

E) 80%


The correct answer is E.

Explanation:

Efficiency = M.A x 100%

= \(\frac{200}{50}\) x \(\frac{1}{5}\) x 100

= 80%


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