In a lifting machine, the effort required to lift loads of 200N and 300N were 50N and 60N respectively. If the velocity ratio of the machine is 20 determine maximum efficiency which can be expected from this machine.

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In a lifting machine, the effort required to lift loads of 200N and 300N were 50N and 60N respectively. If the velocity ratio of the machine is 20 determine maximum efficiency which can be expected from this machine.

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Greg · Answer 1 · 2022-10-19T10:49:22+0000

Correct option is (c) 50 %

Explanation: Maximum possible efficiency of any machine = 1/m x V.R. = 1/1/10 x 20 = 0.5 = 50 %.

In a lifting machine, the effort required to lift loads of 200N and 300N were 50N and 60N respectively. If the velocity ratio of the machine is 20 determine maximum efficiency which can be expected from this machine.

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