The power available at the shaft of a Kaplan turbine is 0.75 MW. The volume flow rate of water in 15 m3/s, whirl velocity at inlet is 12 m/s and blade velocity is 5 m/s. Find the mechanical efficiency (in %)?

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1.	The power available at the shaft of a Kaplan turbine is 0.75 MW. The volume flow rate of water in 15 m³/s, whirl velocity at inlet is 12 m/s and blade velocity is 5 m/s. Find the mechanical efficiency (in %)?
A.	66.66
B.	75.00
C.	83.33
D.	91.33
Answer» D. 91.33

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