Questions
What is the average power output of an electric motor driving a pump for lifting 200 kg of water at a height of 100 m in 1 minute? Efficiency of pump is 75%
detailed solution
Correct option is D
Power output of the pump =200×100×1060 W∴ Power input to the pump =200×100×1060×0.75 watt =4.44 kW∴ Power output of the motor = 4.44 kW.Talk to our academic expert!
Similar Questions
Water falls from a height of 60 m at the rate of 15 kg/s to operate a turbine. It losses 10% of energy due to frictional forces . How much power is generated by the turbine?
(g = 10 )
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