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The discharge through a reaction turbine with increase in unit speed

A. Increases

B. Decreases

C. Remain unaffected

D. First increases and then decreases

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  1. In a reaction turbine, the draft tube is used
  2. One horsepower is equal to
  3. Reciprocating pumps are no more to be seen in industrial applications (in comparison to centrifugal…
  4. The cavitation in reaction turbines is avoided, to a great extent by
  5. Discharge (Q) of a centrifugal pump is given by (where D = Diameter of impeller at inlet, b = Width…
  6. According to fan laws, for fans having constant wheel diameter, the pressure varies
  7. By fitting an air vessel to the reciprocating pump, there is always a saving of work done and subsequently…
  8. Which of the following statement is correct?
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  10. Francis turbine is best suited for
  11. In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly…
  12. Which of the following pump is suitable for small discharge and high heads?
  13. The specific speed of a hydraulic turbine depends upon
  14. The unit speed of the turbine runner is
  15. Mechanical efficiency of a centrifugal pump is the ratio of
  16. The force exerted (in Newton) by a jet of water impinging normally on a fixed plate is (where w = Specific…
  17. According to fan laws, at constant weight of air or gas, the speed, capacity and pressure vary
  18. The efficiency of jet propulsion for a ship with inlet orifices at right angles to the direction of…
  19. The Thomson's turbine is __________ reaction turbine.
  20. The depth of the bucket for a Pelton wheel is generally ________ the diameter of jet.
  21. Overall efficiency of a centrifugal pump is the ratio of
  22. Which of the following statement is wrong?
  23. In reaction turbine, draft tube is used
  24. The specific speed of a turbine is the speed of an imaginary turbine, identical with the given turbine,…
  25. The function of guide vanes in a reaction turbine is to
  26. Head developed by a centrifugal pump is
  27. Which place in hydraulic turbine is most susceptible for cavitations?
  28. Kinematic similarity is said to exist between the model and the prototype, if both of them
  29. Air vessels in reciprocating pump are used to
  30. Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w =…