Hydraulic Machines Multiple Choice Questions and Answers


36. Cavitation in hydraulic turbine results in .......


   A.Noise and vibration

   B.Reduction of discharge

   C.Drop in output and efficiency

   D.Rough surface

✔ View Answer


D.Rough surface

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37. For Flood control and irrigation applications the pump generally used is.......


   A.Centrifugal type

   B.Ceciprocating type

   C.Axial flow type

   D.Radial flow type


✔ View Answer


C.Axial flow type

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38. Higher specific speed (161 to 500 ) of centrifugal pump indicates that the pump is .........


   A.Axial type

   B.Mixed flow type

   C.Axial flow

   D.Any of the above


✔ View Answer


C.Axial flow

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39. Higher specific speed (300 to 1000 ) of turbine indicates that the turbine is......


   A.Pelton wheel

   B.Kaplan

   C.Francis

   D.Any of the above


✔ View Answer


B.Kaplan

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40. As specific speed of a centrifugal pump increases its blade height ......


   A.Increases

   B.Decreases

   C.Remains unaffected

   D.Increase or decrease depends on other factors

✔ View Answer


B.Decreases

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