Q .     An installation consisting of an electric motor
driving a water pump left `75 L` of water per
second to a height of `4. 7 m`. If the motor
consumes a power of `5 kW`, then the efficiency
of the instaJ1ation is

VIT 2014
A

`39%`

B

`69%`

C

`93%`

D

`96%`

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