Hydraulics and Fluid Mechanics in ME
Francis turbine is best suited for

All types of heads
Low head installation up to 30 m
High head installation above 180 m
Medium head application from 24 to 180 m

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

Power produced by the turbine to the energy actually supplied by the turbine
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

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