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Home ‣ Civil Engineering ‣ Irrigation Comments
  • Question

  • A hydraulic structure is designed to withstand


  • Options
  • A. seepage forces
  • B. hydraulic jump
  • C. hydraulic pressure
  • D. all the above.

  • Correct Answer
  • all the above. 

    • Irrigation problems

    Search Results

    • 1. In Montague type fall

    • Options
    • A. a straight glacis is provided
    • B. a circular glacis is provided
    • C. a parabolic glacis is provided
    • D. no glacis is provided.
      • Discuss
    • 2. If the irrigation efficiency is 80%, conveyance losses are 20% and the actual depth of watering is 16 cm, the depth of water required at the canal outlet, is

    • Options
    • A. 10 cm
    • B. 15 cm
    • C. 20 cm
    • D. 25 cm
    • E. 30 cm
      • Discuss
    • 3. According to Khosla, the exist gradient of surface flow

    • Options
    • A. depends upon the b/d ratio
    • B. is independent of the b/d ratio
    • C. is independent of the depths of d/s cut off walls
    • D. none of these.
      • Discuss
    • 4. The down stream expansion head of a guide bank is extended to subtend an angle at the centre, equal to

    • Options
    • A. 30°
    • B. 45°
    • C. 60°
    • D. 90°
      • Discuss
    • 5. If V0 is the critical velocity of a channel, its silt transporting power, according to Kennedy, is proportional to

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
      • Discuss
    • 6. Useful soil moisture for plant growth, is

    • Options
    • A. capillary water
    • B. gravity water
    • C. hygroscopic water
    • D. chemical water
    • E. all the above.
      • Discuss
    • 7. Solution of Laplacian equation in three dimensions of water in a syphon, is done by

    • Options
    • A. analytical method
    • B. Khosla's method
    • C. method of relaxation
    • D. Unwin's method.
      • Discuss
    • 8. If D is the depth of water upstream of the throat above its sill, B is the width of the throat, to achieve critical flow in an open venturi flume, the theoretical maximum flow Q, is

    • Options
    • A. Q = 1.71 BD1/2
    • B. Q = 1.71 BD
    • C. Q = 1.71 BD3/2
    • D. Q = 1/71 BD2/3
    • E. none of these.
      • Discuss
    • 9. In gravity canals, F.S.L. is

    • Options
    • A. always at the ground level
    • B. always below the ground level
    • C. generally 4 to 5 metres above the ground level
    • D. only a few cm above the ground level.
      • Discuss
    • 10. According to Bligh's creep theory, percolating water flows along

    • Options
    • A. straight path under the foundation of the dam
    • B. circular path under the foundation of the dam
    • C. the outline of the base of the foundation of the dam
    • D. none of these.
      • Discuss

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