Задача 4в

Task 4b
The pump capacity is 20 dm3 / s of liquid of relative density A. The total head is 58 m. The efficiency of the pump is 0.64, the efficiency of the transmission is 0.97, the efficiency of the electric motor is 0.95. How much power should the engine be installed? a) A = 0.85; b) A = 0.91, c) A = 0.97.

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