In a reciprocating pump, air vessels are used to

A. Smoothen the flow

B. Reduce suction head

C. Increase delivery head

D. Reduce acceleration head

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  1. Indicator diagram of a reciprocating pump is a graph between
  2. The hydraulic efficiency of an impulse turbine is the
  3. Hydraulic accumulator is used for
  4. The ratio of actual work available at the turbine to the energy imparted to the wheel is known as ________…
  5. A centrifugal pump will start delivering liquid only when the pressure rise in the impeller is equal…
  6. In a single casing, multistage pump running at constant speed, the capacity rating is to be slightly…
  7. If the ratio's of the corresponding forces acting at corresponding points are equal, then the model…
  8. If a pump is handling water and is discharging a certain flow Q at a constant total dynamic head requiring…
  9. Which of the following pump is suitable for small discharge and high heads?
  10. The ratio of the normal force of jet of water on a plate inclined at an angle of 30° as compared…
  11. Dynamic similarity is said to exist between the model and the prototype, if both of them
  12. A turbine develops 10000 kW under a head of 25 metres at 135 r.p.m. Its specific speed is
  13. Maximum impulse will be developed in hydraulic ram when
  14. The Thomson's turbine is __________ reaction turbine.
  15. A Pelton wheel is
  16. In a centrifugal pump casing, the flow of water leaving the
  17. Low specific speed of turbine implies it is
  18. An impulse turbine is used for
  19. The power produced by the reaction turbine is ________ to the head of water.
  20. The cavitation in a hydraulic machine
  21. Impulse turbine is generally fitted
  22. In an outward flow reaction turbine
  23. The static head of a centrifugal pump is equal to the ________ of suction head and delivery head.
  24. A hydraulic accumulator is a device used to store ________ energy which may be supplied to a machine…
  25. The cavitation in a hydraulic machine is mainly due to
  26. Which of the following turbine is preferred for 0 to 25 m head of water?
  27. High specific speed of turbine implies it is
  28. Which of the following pump is generally used to pump highly viscous fluid?
  29. The specific speed of turbine is defined as the speed of a unit
  30. The speed of a turbine runner is