Head developed by a centrifugal pump depends on

A. Impeller diameter

B. Speed

C. Fluid density

D. Both (A) and (B) above

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  1. The angle of taper on draft tube is
  2. The efficiency of a Pelton wheel working under constant head ________ with the increase in power.
  3. The impeller of a centrifugal pump may have
  4. Impulse turbine is generally fitted
  5. The overall efficiency for a Pelton wheel lies between
  6. Head developed by a centrifugal pump depends on
  7. The discharge of a double acting reciprocating pump is (where L = Length of stroke, A = Cross-sectional…
  8. A Pelton wheel develops 1750 kW under a head of 100 metres while running at 200 r.p.m. and discharging…
  9. A hydraulic accumulator is a device used to store ________ energy which may be supplied to a machine…
  10. Which type of the pump is different from others in the same group?
  11. The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves…
  12. The speed of a turbine runner is
  13. Which of the following pump is suitable for small discharge and high heads?
  14. Francis turbine is best suited for
  15. The optimum value of vane exit angle for a centrifugal pump impeller is
  16. Medium specific speed of a pump implies it is
  17. The discharge through a reaction turbine ________ with the increase in unit speed.
  18. In reaction turbine, draft tube is used
  19. The mechanical efficiency of an impulse turbine is
  20. Low specific speed of a pump implies it is
  21. The jet ratio is defined as the ratio of the
  22. Motion of a liquid in a volute casing of a centrifugal pump is an example of
  23. The cavitation in a hydraulic machine
  24. The hydraulic efficiency of an impulse turbine is the
  25. Which of the following statement is wrong?
  26. Which of the following turbine is preferred for a specific speed of 60 to 300 r.p.m.?
  27. In a Francis turbine runner, the numbers of blades are generally between
  28. The gross or total head of the turbine is the ________ of the water levels at the head race and tail…
  29. The static head of a centrifugal pump is equal to the ________ of suction head and delivery head.
  30. A Pelton wheel working under a constant head and discharge, has maximum efficiency when the speed ratio…