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  • Question

  • If the chosen diameter of a pipe, is less than the economical diameter


  • Options
  • A. cost of pipe will be less
  • B. head loss will be high
  • C. cost of pumping will be more than saving
  • D. all the above.

  • Correct Answer
  • all the above. 

    • Water Supply Engineering problems

    Search Results

    • 1. The maximum pressure to which cast iron pipes may be subjected to, is

    • Options
    • A. 3 kg/cm2
    • B. 5 kg/cm2
    • C. 7 kg/cm2
    • D. 10 kg/cm2.
      • Discuss
    • 2. Most important source of water for public water supply, is from

    • Options
    • A. lakes
    • B. ponds
    • C. streams
    • D. rivers
    • E. sea.
      • Discuss
    • 3. The type of pipe commonly used in water supply distribution schemes, is

    • Options
    • A. R.C.C. pipes
    • B. Hume pipes
    • C. Cast iron pipes
    • D. G.I. pipes.
      • Discuss
    • 4. Specific capacity or yield of wells, is generally expressed, as

    • Options
    • A. m3 per sec
    • B. m3/hour
    • C. m3/hour/m2
    • D. m3/hour/m2/m
    • E. m3/hour/m2/sec.
      • Discuss
    • 5. Most commonly used section in grade aqueducts, is

    • Options
    • A. circular
    • B. rectangular
    • C. parabolic
    • D. horse shoe section.
      • Discuss
    • 6. When the reduced level of the water source is higher than the reduced level of the consumer's place, water is generally supplied

    • Options
    • A. by pumping system
    • B. by gravitational system
    • C. both (a) and (b)
    • D. all the above.
      • Discuss
    • 7. The fire demand for ascertaining the empirical formula known as

    • Options
    • A. Kuichling's formula
    • B. Buston's formula
    • C. Freeman formula
    • D. Under Writers formula
    • E. None of these.
      • Discuss
    • 8. The prescribed hardness limit of potable water ranges between

    • Options
    • A. 50 to 75 P.P.M.
    • B. 75 to 115 P.P.M.
    • C. 100 to 150 P.P.M.
    • D. 150 to 200 P.P.M.
    • E. none of these.
      • Discuss
    • 9. High pH value of water does not produce

    • Options
    • A. incrustation
    • B. sediment deposits
    • C. turberculation
    • D. corrosion
    • E. both (c) and (d).
      • Discuss
    • 10. According to Buston's formula, fire demand in litres per minute for a population of P thousands, is

    • Options
    • A. 3182 P
    • B.
    • C. 4637 P (1 - 0.01 P)
    • D. 5663 P
    • E. none of these.
      • Discuss

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