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Q. Mechanical efficiency of a centrifugal pump is the ratio of ?

  • (A) energy available at the impeller to the energy supplied to the pump by the prime mover
  • (B) actual work done by the pump to the energy supplied to the pump by the prime mover
  • (C) energy supplied to the pump to the energy available at the impeller
  • (D) manometric head to the energy supplied by the impeller per kN of water
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