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  • Question
  • A strainer type well sunk through three pervious layers intervened by three impervious aquicludes, draws water from


  • Options
  • A. top most pervious layer
  • B. central pervious layer
  • C. lowest pervious layer
  • D. all the pervious layers.

  • Correct Answer
  • all the pervious layers. 


  • Water Supply Engineering problems


    Search Results


    • 1. Water to the consumers may be supplied from

    • Options
    • A. infiltration galleries connected to sump well
    • B. infiltration well dug out on the banks of rivers
    • C. ranney wells sunk to the water level
    • D. all the above.
    • Discuss
    • 2. Perched acquifers are generally found

    • Options
    • A. on the surface of the ground
    • B. below the surface of the ground but above water table
    • C. below the water table
    • D. all the above.
    • Discuss
    • 3. The formula for pipe flows, suggested by, Hazen-William is

    • Options
    • A.
    • B. V = 0.85 CH R0.63 . S0.54
    • C.
    • D. None of these.
    • Discuss
    • 4. The discharge for the confined tube well is obtained from

    • Options
    • A. Thiem's formula
    • B. Darcy's formula
    • C. Tolman's formula
    • D. Dupuits formula.
    • Discuss
    • 5. Water having pH value as 6, is

    • Options
    • A. alkaline
    • B. acidic
    • C. neutral
    • D. none of these.
    • Discuss
    • 6. If the average daily demand of a city of 50, 000 population, is 20 m.l.d., the maximum daily demand is

    • Options
    • A. 24 mld
    • B. 30 mld
    • C. 36 mld
    • D. 54 mld.
    • Discuss
    • 7. Steel pipe are

    • Options
    • A. suitable for withstanding high internal pressure
    • B. connected by riveted or welded joints
    • C. generally laid under ground and no expansion joint is required
    • D. likely to last 100 years under ordinary conditions
    • E. None of these.
    • Discuss
    • 8. Alum is chemically

    • Options
    • A. Copper sulphate
    • B. Aluminium sulphate
    • C. Ferrous sulphate
    • D. Ferric sulphate.
    • Discuss
    • 9. The chlorine supply cylinders are generally kept at 38°C to 40°C to prevent

    • Options
    • A. conversion into crystals
    • B. it from burning
    • C. it from explosion
    • D. none of these.
    • Discuss
    • 10. The ratio of discharge and plan area of a continuous flow type settling tank, is known

    • Options
    • A. surface loading
    • B. overflow
    • C. overflow rate
    • D. all the above.
    • Discuss


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