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

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

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Hydraulics and Fluid Mechanics in ME
The hydraulic efficiency of an impulse turbine is the

Ratio of the actual work available at the turbine to the energy imparted to the wheel
Ratio of the work done on the wheel to the energy of the jet
None of these
Ratio of the actual power produced by the turbine to the energy actually supplied by the turbine

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