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  • Question
  • A circular gravity aqueduct is not generally preferred to because of


  • Options
  • A. its maximum hydraulic mean depth
  • B. maximum area per unit of wetted perimeter
  • C. minimum cost of construction
  • D. its proper support on the ground.

  • Correct Answer
  • its proper support on the ground. 


  • Water Supply Engineering problems


    Search Results


    • 1. Dissolved carbon dioxide, can be removed from the supply main by

    • Options
    • A. sedimentation
    • B. aeration
    • C. chlorination
    • D. coagulation
    • E. none of these.
    • Discuss
    • 2. The ratio of total capacity and dead storage is kept

    • Options
    • A. 8
    • B. 6
    • C. 4
    • D. 3
    • E. 2
    • Discuss
    • 3. If n is porosity, y is specific yield and r is specific retention of any soil, the relationship which holds good, is

    • Options
    • A. n + y + r = 1
    • B. n + y = r
    • C. n + r = y
    • D. y + r = n
    • E. n + r + y = 0
    • Discuss
    • 4. If L, B and D length, breadth and depth of water in a rectangular sedimentation tank of total discharge Q, the settling velocity, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E.
    • Discuss
    • 5. The process of passing water through beds of granular materials, is called

    • Options
    • A. screening
    • B. sedimentation
    • C. filtration
    • D. none of these.
    • Discuss
    • 6. An aquiclude is

    • Options
    • A. a non artesian aquifer
    • B. an artesian acquifer
    • C. a confined bed of impervious material between acquifers
    • D. a large water body under ground.
    • Discuss
    • 7. Pick up the incorrect statement from the following :

    • Options
    • A. The net amount of water which joins the surface streams in a catchment, is known as surface run-off
    • B. The amount of water which joins the stream from the underground water, is called base flow
    • C. The yearly run off in cm depth over the catchment, is termed as the yield of the drainage basin
    • D. The yield of drainage in cm depth multiplied by the area of the catchment gives the annual volume of water
    • E. None of these.
    • Discuss
    • 8. In an artesian acquifer, the draw downs in two observation wells at distances 100 m, and 200 m were found same after one hour and x hours respectively. The value of x, is

    • Options
    • A. 2 hours
    • B. 4 hours
    • C. 9 hours
    • D. 16 hours.
    • Discuss
    • 9. Reciprocating pumps

    • Options
    • A. are not suitable for variable heads
    • B. are four times costlier than centrifugal pumps
    • C. are not suitable for pumping water containing sediments
    • D. single stroke produce pulsating flow
    • E. none of these.
    • Discuss
    • 10. Specific yield of a well is

    • Options
    • A. quantity of water than can be drawn from the well
    • B. flow of water per unit time
    • C. total quantity of water available in the well
    • D. quantity of water per unit time per unit draw-down.
    • Discuss


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