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Physics, 10.10.2021 22:40 micheleflorack
Underground water is to be pumped by a 78% efficient 5kW submerged pump to a pool whose free
surface is 30m above the underground water level. The diameter of the pipe is 7cm on the intake side
and 5cm on the discharge side. Determine:
(a) the maximum flow rate of water
(b) the pressure difference across the pump.
Assume the elevation difference between the pump inlet and the outlet and consider the effect of
kinetic energy correction factors to be negligible.
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