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  • Question
  • In a centrifugal pump, the regulating valve is provided on the


  • Options
  • A. casing
  • B. delivery pipe
  • C. suction pipe
  • D. impeller

  • Correct Answer
  • delivery pipe 


  • Hydraulic Machines problems


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    • 1. Which of the following pump is suitable for small discharge and high heads?

    • Options
    • A. Centrifugal pump
    • B. Axial flow pump
    • C. Mixed flow pump
    • D. Reciprocating pump
    • Discuss
    • 2. A jet of water enters and leaves a fixed curved vane tangentially. The force of the jet along normal to the vane is (where ? and ? = Inlet and outlet angles of the jet respectively)

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 3. In an outward flow reaction turbine

    • Options
    • A. the water flows parallel to the axis of the wheel
    • B. the water enters at the centre of the wheel and then flows towards the outer periphery of the wheel
    • C. the water enters the wheel at the outer periphery and then flows towards the centre of the wheel
    • D. the flow of water is partly radial and partly axial
    • Discuss
    • 4. The water in a jet propelled boat is drawn through the openings facing the direction of motion of the boat. The efficiency of propulsion is given by

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 5. In an impulse turbine, the pressure of water both at entering and leaving the vanes, is atmospheric.

    • Options
    • A. Agree
    • B. Disagree
    • Discuss
    • 6. Which of the following is not an impulse turbine?

    • Options
    • A. Girad turbine
    • B. Turgo turbine
    • C. Pelton wheel
    • D. Kaplan turbine
    • Discuss
    • 7. Which of the following pump is sucessfully used for lifting water to the boilers?

    • Options
    • A. Centrifugal pump
    • B. Reciprocating pump
    • C. Jet pump
    • D. Air-lift pump
    • Discuss
    • 8. The specific speed of a centrifugal pump may be defined as the speed of an imaginary pump, identical with the given pump, which will discharge one litre of water, while it is being raised through a head of one metre.

    • Options
    • A. True
    • B. False
    • Discuss
    • 9. In a reaction turbine, the water enters the wheel under pressure and flows over the vanes.

    • Options
    • A. Correct
    • B. Incorrect
    • Discuss
    • 10. A hydraulic press is a device used

    • Options
    • A. to store pressure energy which may be supplied to a machine later on
    • B. to increase the intensity of pressure of water by means of energy available from a large quantity of water at a low pressure
    • C. to lift larger load by the application of a comparatively much smaller force
    • D. all of the above
    • Discuss


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