Question

A pump is used to lift 500 kg of water from a depth
of 80 min 10 s. Calculate :
(a) the work done by the pump,
(b) the power at which the pump works, and
(c) the power rating of the pump if its efficiency is
40%. (Take g = 10 m s -)
useful power
(Hint: Efficiency
power input
Ans. (a) 4 x 109(b) 40 kW (c) 100 KW
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Answer 1

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