Question

1. Water is pumped from a lake to a storage tank 20 m above at a rate of 0.07 m3/s while
consuming 20.4 kW of electric power. Disregarding any frictional losses in the pipes and any
changes in kinetic energy, determine the overall efficiency of the pump-motor unit.​

Answer 1

$\huge\star{\underline{\mathtt{\red{A}\pink{N}\green{S}\blue{W}\purple{E}\orange{R}}}}⋆$

$REFER THE ATTACHMENT FRIEND ↗️$

Answer 2

Explanation:

Efficiency of a pump-motor unit is equal to the product of the efficiency of a pump and the efficiency of a motor.