Hydraulics and Fluid Mechanics in ME
In order to avoid cavitation in centrifugal pumps

The suction pressure should be low
The delivery pressure should be low
The delivery pressure should be high
The suction pressure should be high

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Hydraulics and Fluid Mechanics in ME
The hydraulic efficiency of a reaction turbine, is the ratio of

Work-done on the wheel to the energy (or head of water) actually supplied to the turbine
Actual work available at the turbine to energy imparted to the wheel
Power produced by the turbine to the energy actually supplied by the turbine
None of these

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