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  • Question
  • The U.C. (uniformity coefficient) The U.C. (uniformity coefficient) for the best filter media sand should be 2 3 4 5 for the best filter media sand should be


  • Options
  • A. 2
  • B. 3
  • C. 4
  • D. 5
  • E. none of these.

  • Correct Answer



  • Water Supply Engineering problems


    Search Results


    • 1. Permanent hardness of water can be removed by

    • Options
    • A. adding alum
    • B. adding lime
    • C. adding chlorine
    • D. boiling
    • E. zeolite process.
    • Discuss
    • 2. Filtration of water is done to remove

    • Options
    • A. colour
    • B. odour
    • C. turbidity
    • D. pathogenic bacteria
    • E. all the above.
    • Discuss
    • 3. Pick up the incorrect statement from the following. In take of water supply should

    • Options
    • A. be nearer to the treatment plant
    • B. receive water from purer zone of the source
    • C. be located downstream of waste water disposal point
    • D. remain easily accessible during floods.
    • Discuss
    • 4. Pick up the correct statement from the following :

    • Options
    • A. Head loss in smaller size pipes at equal velocities, is less
    • B. Cost of pumping is less in smaller size pipes
    • C. Cost of smaller pipes is comparatively more
    • D. None of these.
    • Discuss
    • 5. The most ideal disinfectant used for drinking water throughout the world, is

    • Options
    • A. alum
    • B. lime
    • C. chlorine
    • D. nitrogen
    • E. ammonia.
    • Discuss
    • 6. Total flow in stream is known

    • Options
    • A. run off
    • B. stream flow
    • C. discharge
    • D. all the above.
    • Discuss
    • 7. Alum is a

    • Options
    • A. coagulant
    • B. flocculant
    • C. catalyst
    • D. disinfectant.
    • Discuss
    • 8. The requirement of water per capita per day, is

    • Options
    • A. 90 litres
    • B. 150 litres
    • C. 250 litres
    • D. 400 litres.
    • Discuss
    • 9. Generally, first portion of a logistic curve for the population growth of a developing city, represents the growth of

    • Options
    • A. increasing
    • B. decreasing
    • C. constant
    • D. all the above.
    • Discuss
    • 10. Pick up the correct statement from the following :

    • Options
    • A. Deposition of calcium carbonate on the inside of the well pipe, causes incrustation of the pipe
    • B. Incrustation of the pipe reduces the discharge
    • C. Acidic waters cause corrosion of the pipes
    • D. Corrosion results due to excessive withdrawal of sand along with water
    • E. All the above.
    • Discuss


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