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  • Question
  • 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

  • Correct Answer
  • 600 


  • Water Supply Engineering problems


    Search Results


    • 1. Pick up the correct statement from the following :

    • Options
    • A. The precipitation during its travel in atmosphere dissolves certain gases
    • B. Rain water which percolates through the ground, is free from suspended materials
    • C. Under ground water may dissolve minerals and salts present in the earth's layers
    • D. Small quantities of iron, calcium and magnesium dissolved in water, may be useful for human health
    • E. All the above.
    • Discuss
    • 2. Grade aqueducts are not allowed to run

    • Options
    • A. full
    • B. th full
    • C. full
    • D. th full.
    • Discuss
    • 3. Disappearance of pink colour of water of a well due of KMnO4 indicates that water contains

    • Options
    • A. acidity
    • B. alkalinity
    • C. turbidity
    • D. organic matter
    • E. all the above.
    • Discuss
    • 4. Pick up the correct statement from the following :

    • Options
    • A. Large solids carried along the river bed, is known as bed load
    • B. The bigger suspended particles get deposited in the head reaches of the reservoir
    • C. The fine sediment deposits are generally near the face of the dam
    • D. Deposition of sediment in the reservoir, reduces the capacity of the reservoir
    • E. All the above.
    • Discuss
    • 5. The gaseous form of chlorine gets converted into liquid form when subjected to a pressure of

    • Options
    • A. 5 kg/cm2
    • B. 6 kg/cm2
    • C. 7 kg/cm2
    • D. 8 kg/cm2
    • E. 10 kg/cm2.
    • Discuss
    • 6. The efficiency of a pumping set, is generally assumed

    • Options
    • A. 50%
    • B. 55%
    • C. 60%
    • D. 65%
    • E. 70%.
    • Discuss
    • 7. 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
    • 8. 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
    • 9. 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
    • 10. 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.
    • Discuss


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