Which of the following efficiencies for Francis Turbine is defined as the ratio between the power available at the shaft of the turbine to the power produced by the runner?

Which of the following efficiencies for Francis Turbine is defined as

1.	Which of the following efficiencies for Francis Turbine is defined as the ratio between the power available at the shaft of the turbine to the power produced by the runner?
A.	Hydraulic efficiency
B.	Volumetric efficiency
C.	Mechanical efficiency
D.	Overall efficiency
Answer» D. Overall efficiency

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Which of the following efficiencies for Francis Turbine is defined as the ratio between the power available at the shaft of the turbine to the power produced by the runner?

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