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  • Question
  • Pick up the correct statement from the following :


  • Options
  • A. For determination of small colour intensities, tintometer is generally used
  • B. The odour of water sample is generally measured by a term called odour intensity
  • C. The colour of water sample may be detected by Nessler tube
  • D. Specific conductivity of water measures the amount of dissolved salt
  • E. All the above.

  • Correct Answer
  • All the above. 


  • Water Supply Engineering problems


    Search Results


    • 1. To control the growth of algae in reservoirs, the compound which is used, is

    • Options
    • A. bleaching powder
    • B. copper sulphate
    • C. lime solution
    • D. alum solution
    • E. all the above.
    • Discuss
    • 2. Hardness of water can be removed by boiling if it is due to

    • Options
    • A. calcium bicarbonates
    • B. calcium sulphates
    • C. calcium chloride
    • D. calcium nitrates.
    • Discuss
    • 3. If w is the weight of water per cubic metre, Q is the discharge in cubic metres per sec and H is the total head, the required water horse power of the pump, is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. none of these.
    • Discuss
    • 4. The approximate diameter of a water mains for supplying 7.2 mld with a velocity 1.2 m/sec, is

    • Options
    • A. 24 cm
    • B. 26 cm
    • C. 28 cm
    • D. 30 cm
    • E. 32 cm.
    • Discuss
    • 5. The order of existence of three portions of water in a reservoir from the bottom to top is

    • Options
    • A. useful storage + surcharge storage + dead storage
    • B. useful storage + dead storage + surcharge storage
    • C. dead storage + useful storage + surcharge storage
    • D. surcharge storage + useful storage + dead storage
    • E. none of these.
    • Discuss
    • 6. Pick up the wrong nominal internal diameter of cast iron (spun) pipes in mm from the following :

    • Options
    • A. 300
    • B. 400
    • C. 500
    • D. 550
    • E. 600
    • Discuss
    • 7. Carbonates in water produce

    • Options
    • A. temporary hardness
    • B. permanent hardness
    • C. acidity
    • D. alkanity.
    • Discuss
    • 8. Well treated water is generally supplied for

    • Options
    • A. domestic use
    • B. commercial use
    • C. public use
    • D. waste water
    • E. all the above.
    • Discuss
    • 9. The formula Q = P - K[1.8T + 32] in which Q is runoff, P is annual rain fall in cm, T is mean annual temperature in centigrades and K is a constant, is known

    • Options
    • A. Justin's formula
    • B. Khosla's formula
    • C. English formula
    • D. Vermule's formula.
    • Discuss
    • 10. Pick up the incorrect statement from the following :

    • Options
    • A. Water disinfected with ozone is free from any odour
    • B. Ozone removes bacterias as well as colour and odour
    • C. ozonised water becomes tasteless
    • D. None of these.
    • Discuss


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