Centrifugal Pump objective questions and answers

11. Discharge of a centrifugal pump is proportional to .......

   A.Impeller diameter(D)

   B.D ²

   C.D ³

   D.1/D ³

   E.1/D ²

12. In a centrifugal pump the liquid enters the pump .......

   A.At the top

   B.At the bottom

   C.At the centre

   D.From sides

13. For small discharge at high-pressure following pump is preferred .........

   A.Centrifugal

   B.Axial flow

   C.Mixed flow

   D.Propeller

   E.Reciprocating

14. In a centrifugal pumps maximum efficiency is obtained when the plates are ......

   A.straight

   B.Bent forward

   C.Bent backward

   D.Radial

   E.Given aerofoil section

15. Indicator diagram of a reciprocating pump is a graph between......

   A.Floor vs swept volume

   B.Pressure in cylinder vs swept volume

   C.Flow vs speed

   D.Pressure vs speed

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