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Question: a centrifugal pump is rated at 08 m3s when operating...

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A centrifugal pump is rated at 0.8 m3/s when operating at 1200 rpm against a head of 25 m. What is its specific speed? What is its efficiency if the power applied to its shaft is 233 kW? At what speed must the pump of Prob. be operated so that the discharge does not decrease if the head is increased to 30 m? What will the discharge be? 3
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