A. discharge a diameter
B. head a speed2
C. head a diameter
D. Power a speed3
E. none of the above is wrong

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Related Mcqs:

  1. Centrifugal pump is started with its delivery valve __________________?
    A. kept fully closed B. kept fully open C. irrespective of any position D. kept 50% open E. none of the above...
  2. In a centrifugal pump casing, the flow of water leaving the_______________?
    A. radial B. radial C. centrifugal D. rectilinear E. vortex...
  3. Head developed by a centrifugal pump depends on___________________?
    A. impeller diameter B. speed C. fluid density D. type of casing E. A. and B. above...
  4. Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal pumps) because of____________________?
    A. high initial and maintenance cost B. lower discharge C. lower speed of operation D. necessity of air vessel E. all of the above...
  5. The optimum value of vane exit angle for a centrifugal pump impeller is_________________?
    A. 10-15° B. 20-25° C. 30-40° D. 50-60° E. 80-90°....
  6. In centrifugal pumps, maximum efficiency is obtained when the blades are_________________?
    A. straight B. bent forward C. bent backward D. radial E. given aerofoil section...
  7. Motion of a liquid in a volute casing of a centrifugal pump is an example of____________________?
    A. rotational flow B. radial C. forced spiral vortex flow D. forced cylindrical vortex flow E. spiral vortex flow...
  8. Casting of a centrifugal pump is designed so as to minimize________________?
    A. friction loss B. cavitation C. static head D. loss of kinetic energy E. starting time...
  9. A turbine pump is basically a centrifugal pump equipped additionally with_________________?
    A. adjustable blades B. backward curved blades C. vaned diffusion casing D. inlet guide blades E. totally submerged operation facility...
  10. In a centrifugal pump casing, the flow of water leaving the impeller, is___________________?
    A. rectilinear flow B. radial flow C. free vortex motion D. forced vortex E. none of the above...
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