The hydraulic efficiency of a turbine is defined as the ratio of power delivered to the runner to the:
Correct answer: C. Water power supplied to the turbine
- A. Power supplied by the generator
- B. Mechanical power lost in bearings
- C. Water power supplied to the turbine
- D. Power available at the tailrace
Explanation
Hydraulic efficiency compares runner power with the water power supplied at the turbine inlet. Generator efficiency is a separate electrical conversion efficiency and is not included in this ratio.
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About Hydraulics and Water Resources
Hydraulics studies fluid properties, pressure, buoyancy, continuity, Bernoulli's equation, momentum, pipe flow, open-channel flow and hydraulic machines. Water resources extends these principles to pumps, turbines, reservoirs, irrigation, floods and hydrology, while distinguishing laminar from turbulent flow and uniform from gradually varied channel flow.
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