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  • Question

  • Estimates of a water supply project depends upon the rate of water supply per capita consumption and probable population estimated at the end of the design period of


  • Options
  • A. 5 to 10 years
  • B. 10 to 15 years
  • C. 15 to 20 years
  • D. 20 to 30 years
  • E. 25 years.

  • Correct Answer
  • 20 to 30 years 

    • Water Supply Engineering problems

    Search Results

    • 1. Pick up the incorrect statement from the following. The source of surface water is from

    • Options
    • A. streams and rivers
    • B. storage reservoirs
    • C. springs
    • D. ponds and lakes
    • E. none of these.
      • Discuss
    • 2. If P is population of a city in thousands and Q is fire demand in litres per minute, for proper estimate of water, the Empirical formula is suggested by

    • Options
    • A. National Board of fire under-writers
    • B. Freeman
    • C. Kuichling
    • D. None of these.
      • Discuss
    • 3. The storage capacity of a reservoir may be divided into three zones. The lowest zone is

    • Options
    • A. Dead storage
    • B. Useful storage
    • C. Surcharge storage
    • D. None of these.
      • Discuss
    • 4. The efficiency of a pumping set, is generally assumed

    • Options
    • A. 50%
    • B. 55%
    • C. 60%
    • D. 65%
    • E. 70%.
      • Discuss
    • 5. To pump water from a water reservoir 3 m deep and maximum water level at 135 m, a pump is installed to lift water up to R.L. 175 m at a constant rate of 36, 00, 000 litres per hour. If the length of the pipe is 1506 m and f = 0.01, ignoring other minor losses and assuming the economical diameter from Lea's formula D = 1.2 Q, the water horse power of the pump is

    • Options
    • A. 400
    • B. 450
    • C. 500
    • D. 580
    • E. 600
      • Discuss
    • 6. Surcharge storage zone of a reservoir, is

    • Options
    • A. below dead storage
    • B. between dead storage and useful storage
    • C. above useful storage
    • D. also known as valley storage.
      • Discuss
    • 7. In a rapid gravity filter

    • Options
    • A. raw water from the source is supplied
    • B. disinfected raw water is supplied
    • C. raw water passed through coagulation tank is supplied
    • D. none of these.
      • Discuss
    • 8. Surface water may

    • Options
    • A. contain large amount of impurities
    • B. be contaminated by impurities
    • C. contain disease producing bacterias
    • D. all the above.
      • Discuss
    • 9. 135 litres of water per person per day, is provided in

    • Options
    • A. nurses homes
    • B. hostels
    • C. residential schools
    • D. all the above.
      • Discuss
    • 10. The type of joint generally used in cast iron pipes, is

    • Options
    • A. socket and spigot joint
    • B. flanged joint
    • C. dresser coupling joint
    • D. flexible joint
    • E. all the above.
      • Discuss

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