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  • Question
  • Pick up the incorrect statement from the following. The underground sources of water, is from


  • Options
  • A. wells
  • B. springs
  • C. infiltration wells
  • D. storage reservoirs
  • E. none of these.

  • Correct Answer
  • storage reservoirs 


  • Water Supply Engineering problems


    Search Results


    • 1. If V is total consumption of water in litres for a population of N individuals, per capita consumption or water allowance for the water supply Q, is given by

    • Options
    • A.
    • B.
    • C.
    • D. none of these.
    • Discuss
    • 2. The factor affecting per capita demand, is

    • Options
    • A. size of the city
    • B. climatic conditions
    • C. pressure in water mains
    • D. cost of water
    • E. all the above.
    • Discuss
    • 3. Disinfection of drinking water, is done to remove

    • Options
    • A. odour
    • B. bacterias
    • C. turbidity
    • D. colour.
    • Discuss
    • 4. Acidity in water is caused due to

    • Options
    • A. Mineral acids
    • B. Free CO2
    • C. Iron sulphate
    • D. Aluminium sulphate
    • E. All the above.
    • Discuss
    • 5. B.O.D. of treated water should be

    • Options
    • A. 10 ppm
    • B. 25 ppm
    • C. 20 ppm
    • D. 30 ppm
    • E. Nil.
    • Discuss
    • 6. Pick up the correct statement from the following :

    • Options
    • A. Excess quantities of iron and manganese in water, cause discolouration of clothes
    • B. Lead and barium salts have toxic effect
    • C. Arsenic and selenium are poisonous to human health
    • D. Higher copper content affects the lungs
    • E. All the above.
    • Discuss
    • 7. The R.L. of ground water table on the sides of a valley is 1505 m whereas R.L. of the stream water is 1475 m. If 60° slope consists of pervious soil between R.L. 1485 m to 1500 m, the gravity spring may be expected at the point of reduced level

    • Options
    • A. 1500 m
    • B. 1505 m
    • C. 1475 m
    • D. 1485 m.
    • Discuss
    • 8. In distribution pipes, drain valves are provided at

    • Options
    • A. lower point
    • B. higher point
    • C. junction points
    • D. any where.
    • Discuss
    • 9. Distribution mains of any water supply, is normally designed for its average daily requirement

    • Options
    • A. 100%
    • B. 150%
    • C. 200%
    • D. 225%.
    • Discuss
    • 10. Corrosion of well pipes may not be reduced by

    • Options
    • A. reducing the draw down and the pumping rate
    • B. reducing the flow velocity
    • C. using thicker pipes
    • D. using screens having larger area of openings
    • E. none of these.
    • Discuss


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