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The mechanical efficiency of an impulse turbine is

A. Ratio of the actual power produced by the turbine to the energy actually supplied by the turbine

B. Ratio of the actual work available at the turbine to the energy imparted to the wheel

C. Ratio of the Work done on the wheel to the energy of the jet

D. None of the above

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  1. The gross or total head of the turbine is the ________ of the water levels at the head race and tail…
  2. A hydraulic accumulator is a device used to store ________ energy which may be supplied to a machine…
  3. High specific speed of a pump implies it is
  4. For 450 m head of water, _________ shall be used.
  5. The working of which of the following hydraulic units is based on Pascal's law?
  6. Which of the following turbine is preferred for 0 to 25 m head of water?
  7. The impeller of a centrifugal pump may have
  8. In an outward flow reaction turbine
  9. In a reaction turbine, the draft tube is used
  10. According to fan laws, for the fans having constant wheel diameters, the power demand varies
  11. In an inward flow reaction turbine
  12. A turbine is required to develop 1500 kW at 300 r.p.m. under a head of 150 m. Which of the following…
  13. Which of the following pump is successfully used for lifting water to the boilers?
  14. Multistage centrifugal pumps are used to obtain
  15. Multistage centrifugal pumps are used to
  16. Which of the following statement is correct?
  17. The flow rate in gear pump
  18. Any change in load is adjusted by adjusting following parameter on turbine
  19. The power developed by a turbine is (where H = Head of water under which the turbine is working)
  20. The power produced by the reaction turbine is ________ to the head of water.
  21. Maximum impulse will be developed in hydraulic ram when
  22. Motion of a liquid in a volute casing of a centrifugal pump is an example of
  23. Which of the following pump is generally used to pump highly viscous fluid?
  24. The maximum number of jets, generally, employed in an impulse turbine without jet interference are
  25. The force exerted by a jet of water impinging normally on a plate which due to the impact of jet, moves…
  26. If the ratio's of the corresponding forces acting at corresponding points are equal, then the model…
  27. The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet)
  28. The efficiency of a hydraulic press is given by (where W = Weight lifted by ram, P = Force applied on…
  29. The width of the bucket for a Pelton wheel is generally ________ the diameter of jet.
  30. A turbine pump is basically a centrifugal pump equipped additionally with