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  • Question

  • A counter berm is


  • Options
  • A. a horizontal benching provided on the inside slope
  • B. a horizontal benching provided on the outside slope
  • C. a vertical benching provided on the outer edge of the bank
  • D. a vertical benching provided on the inner edge of the bank.

  • Correct Answer
  • a horizontal benching provided on the outside slope 

    • Irrigation problems

    Search Results

    • 1. In case of a trapezoidal notch fall

    • Options
    • A. top width of the notch is kept between 3/4 th of full water depth above the sill of the notch
    • B. top length of the piers should not be less than their thickness
    • C. splay up stream from the notch section is 45°
    • D. splay down stream from the notch section is
    • E. all the above.
      • Discuss
    • 2. For cereal crops the most commonly adopted method of irrigation, is

    • Options
    • A. free flowing method
    • B. check method
    • C. furrow method
    • D. sprinkling method.
      • Discuss
    • 3. Which one of the following statements is correct?

    • Options
    • A. The canal system and the drainage system are complementary
    • B. The canal system runs on ridges, gets divided into smaller channels and spreads its water on the land
    • C. The drainage system runs along the lowest line, collects drainage water from the slopes and joins the main stream
    • D. All the above.
      • Discuss
    • 4. Garnett's diagrams are used for graphical solution of design equations of a canal by

    • Options
    • A. Lacey's theory
    • B. Kennedy's theory
    • C. Gibb's theory
    • D. Lindlay theory.
      • Discuss
    • 5. Lacey's equation for calculating flood discharge in rivers, is

    • Options
    • A. V = 10.8 R1/2 S1/2
    • B. V = 10.8 R2/3 S1/2
    • C. V = 10.8 R2/3 S1/3
    • D. V = 10.8 R1/3 S2/3
      • Discuss
    • 6. If D1 and D2 are depths of water upstream and down stream of a hydraulic jump, the loss of head at the jump, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 7. The ratio of the rate of change of discharge of an outlet to the rate of change in level of water surface in a distributary at its normal depth, is known as

    • Options
    • A. efficiency
    • B. sensitivity
    • C. flexibility
    • D. modular limit.
      • Discuss
    • 8. The most suitable section of a lined canal, is

    • Options
    • A. triangular section with circular bottom for small canals
    • B. trapezoidal section with rounded corners for large canals
    • C. rectangular section with rounded corners for large canals
    • D. both (a) and (b)
    • E. both (a) and (c)
      • Discuss
    • 9. In a syphon aqueduct

    • Options
    • A. drainage passes over the canal and F.S.L. of the canal is below the bottom of the drainage trough
    • B. drainage passes over the canal and F.S.L. of the canal is above the bottom of the drainage trough
    • C. canal passes over the drainage and H.F.L. of the drainage is above the bottom of the canal trough
    • D. canal passes over the drainage and H.F.L. of the drainage is below the bottom of the canal trough.
      • Discuss
    • 10. A current meter measures the velocity of flow, if it is held

    • Options
    • A. on the surface of water
    • B. at the bottom of channel
    • C. at any point within the cross-section
    • D. none of these.
      • Discuss

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