In a hydroelectric project, the upstream reservoir water level is 200 m above the tailrace water level of the power plant. When a discharge of 3.0 m'/s is supplied to the turbine, the frictional losses in the penstock are 20 m and the head utilised in the turbine is 160 m. The leakage loss is estimated at 0.1 m'/s and the mechanical losses can be taken as 100 kW. (a) Calculate the (i) volumetric efficiency, (ii) hydraulic efficiency

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