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  • Question

  • Barometres are used to measure


  • Options
  • A. pressure in water channels, pipes etc.
  • B. difference in pressure at two points
  • C. atmospheric pressure
  • D. very low pressure
  • E. very high pressure.

  • Correct Answer
  • atmospheric pressure 

    • Hydraulics problems

    Search Results

    • 1. The discharge through a 100 mm diameter external mouth piece fitted to the side of a large vessel is 0.05948 m3/s. The head over the mouth piece is

    • Options
    • A. 2 m
    • B. 2.5 m
    • C. 3.0 m
    • D. 4.0 m.
      • Discuss
    • 2. Non-over flow double curvature concrete arch, is provided in

    • Options
    • A. Bhakra dam
    • B. Hirakund dam
    • C. Nagarjuna Sagar dam
    • D. Idukki dam.
      • Discuss
    • 3. To avoid the force of surface tension in an inclined manometer, the minimum angle of inclination is

    • Options
    • A. 2°
    • B. 3°
    • C. 4°
    • D. 5°
      • Discuss
    • 4. A closed cylindrical vessel of 100 cm diameter and 200 cm high is completely filled with a liquid (sp. weight 1600 kg/m3) when rotated about its vertical axis at 100 r.p.m. The total pressure on its lid, is

    • Options
    • A. 459 kg
    • B. 549 kg
    • C. 945 kg
    • D. 954 kg
    • E. 95.4 kg.
      • Discuss
    • 5. When water flows over a rectangular suppressed weir, the negative pressure created beneath the nappe

    • Options
    • A. increases the discharge
    • B. decreases the discharge
    • C. does not effect the discharge
    • D. none of these.
      • Discuss
    • 6. In flow, the liquid particles may possess

    • Options
    • A. potential energy
    • B. kinetic energy
    • C. pressure energy
    • D. all the above.
      • Discuss
    • 7. In pipe lines, a surge tank is provided

    • Options
    • A. to relieve the pressure due to water hammer
    • B. to provide additional water head
    • C. to overflow the pipe line when suddenly closed
    • D. to remove the frictional loss in pipe.
      • Discuss
    • 8. A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the weight of the cylinder is 2000 kgf, the vertical reaction at A is

    • Options
    • A. 14,137 kgf
    • B. 5,863 kgf
    • C. 20,000 kgf
    • D. 18,000 kgf.
      • Discuss
    • 9. An orifice is taken as large if

    • Options
    • A. (H2 - H1) > H
    • B. (H2 - H1) > H/4
    • C. (H2 - H1) > H/2
    • D. (H2 - H1) > H/3
      • Discuss
    • 10. If Re is the Renold's number, the coefficient of friction for laminar flow is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss

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