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. The power developed by a turbine is (where H = Head of water under which the turbine is working)
  2. In a centrifugal pump casing, the flow of water leaving the
  3. In a reaction turbine, the draft tube is used
  4. The angle of taper on draft tube is
  5. In an inward flow reaction turbine
  6. The maximum number of jets, generally, employed in an impulse turbine without jet interference are
  7. The maximum hydraulic efficiency of an impulse turbine is (where φ = Angle of blade tip at outlet)
  8. Air vessels in reciprocating pump are used to
  9. If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring…
  10. High specific speed of turbine implies it is
  11. Casting of a centrifugal pump is designed so as to minimize
  12. A turbine develops 10000 kW under a head of 25 metres at 135 r.p.m. Its specific speed is
  13. The relation between hydraulic efficiency (ηh), mechanical efficiency (ηm) and overall efficiency…
  14. The speed of a turbine runner is
  15. Which of the following statement is correct?
  16. Saving of work done and power by fitting an air vessel to double acting reciprocating pump is of the…
  17. The power produced by the reaction turbine is ________ to the head of water.
  18. In reaction turbine, draft tube is used
  19. Which of the following pump is successfully used for lifting water to the boilers?
  20. Braking jet in an impulse turbine is used
  21. The speed ratio in case of Francis turbine varies from
  22. The hydraulic efficiency of a reaction turbine, is the ratio of
  23. Which of the following pump is suitable for small discharge and high heads?
  24. Power required (in watts) to drive a centrifugal pump is (where Hm = Manometric head in metres, w =…
  25. Which of the following pump is generally used to pump highly viscous fluid?
  26. The efficiency of a Pelton wheel working under constant head ________ with the increase in power.
  27. For small discharge at high pressure, following pump is preferred
  28. Discharge of a centrifugal pump is
  29. The runaway speed of a hydraulic turbine is the speed
  30. The ratio of actual work available at the turbine to the energy imparted to the wheel is known as ________…