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  • Question

  • A river training work is generally required when the river is


  • Options
  • A. meandering
  • B. aggrading
  • C. degrading
  • D. all the above.

  • Correct Answer
  • meandering 

    • Irrigation problems

    Search Results

    • 1. If the straight sides of a triangular section of a lined canal with circular bottom of radius R, make an angle ? with horizontal, the perimeter of the canal is

    • Options
    • A. R(? + tan ?)
    • B. 2R(? + tan ?)
    • C. R(? + cos ?)
    • D. 2R(? + cos ?)
    • E. none of these.
      • Discuss
    • 2. Side slopes generally kept for canals in loam soil, are :

    • Options
    • A. 1 : 1 in cutting and : 1 in filling
    • B. : 1 in cutting and 2 : 1 in filling
    • C. Neither (a) nor (b)
    • D. Both (a) and (b)
      • Discuss
    • 3. For the conditions enumerated to provide a crossing at C1 You will probably provide

    • Options
    • A. an aqueduct
    • B. a super-passage
    • C. a syphon aqueduct
    • D. none of these.
      • Discuss
    • 4. Groynes are generally built

    • Options
    • A. perpendicular to the bank
    • B. inclined up stream up to 30°
    • C. inclined down stream upto 30°
    • D. all the above.
      • Discuss
    • 5. The difference in level between the top of a bank and supply level in a canal, is called

    • Options
    • A. berm
    • B. free board
    • C. height of bank
    • D. none of these.
      • Discuss
    • 6. The length of a meander is the distance along the river between the tangent point of one curve to the tangent point of

    • Options
    • A. reverse curve
    • B. next curve of the same order
    • C. reverse curve plus the width of the river
    • D. none of these.
      • Discuss
    • 7. The main function of a diversion head works of a canal from a river, is

    • Options
    • A. to remove silt
    • B. to control floods
    • C. to store water
    • D. to raise water level
    • E. all the above.
      • Discuss
    • 8. When a canal and a drainage approach each other at the same level, the structure so provided, is

    • Options
    • A. an aqueduct
    • B. a syphon
    • C. a level crossing
    • D. inlet and outlet.
      • Discuss
    • 9. If B and d are the bed width and depth of a channel in metres, the combined losses due to evaporation and seepage in cumecs per kilometre length of the channel, is

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 10. According to G.W. Pickles the effect of confining the flood water of a river between levee, is to increase

    • Options
    • A. rate of flood wave
    • B. water surface elevation during floods
    • C. maximum discharge
    • D. velocity and scouring action
    • E. surface slope of streams above the leveed portion.
      • Discuss

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