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An electric motor driven piston pump that gives 2 hp output has overall efficiency of 89%. What is the input given to the electric motor its overall efficiency is 75%.

Respuesta :

Answer:

Input to the electric motor=2.99 hp.

Explanation:

Given

Out put from pump=2 hp

[tex]We\ know\ that\ efficiency\ \eta =\dfrac{out\ put}{in\ put}[/tex]

To find input to the pump

[tex] \eta =\dfrac{out\ put}{in\ put}[/tex]

⇒[tex]0.89=\dfrac{2}{in\ put}[/tex]

So in put=2.24 hp.

Now to find electric motor in put

[tex] 0.75 =\dfrac{2.24}{in\ put}[/tex]

So input to the electric motor=2.99 hp.

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