Question

In case of transmission of hydraulic power by a pipeline to a turbine in a hydroelectric power station, the maximum power transmission efficiency through the pipeline is 
1. 76%
2. 67%
3. 54%
4. 42%

Answer 1

Correct Answer - Option 2 : 67%

Concept:

For maximum power transmission

\({h_f} = \frac{\mu }{3}\)

\({\eta _1} = \frac{{H - {h_f}}}{H} = 1 - \frac{1}{3}\)

\(\therefore {\eta _1} = 66.67\%\)