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Hydraulics problems

  • 1. 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
  • 2. 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
  • 3. 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
  • 4. 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
  • 5. 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.
    • 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
    Civil Engineering Hydraulics: A cylinder 3 m in diameter and 4 m long retains water one side as shown in the below figure. If the

  • 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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