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Home Civil Engineering Water Supply Engineering Comments

  • Question
  • Open channels supported over tres-les, are generally known as


  • Options
  • A. raised canals
  • B. acqueducts
  • C. syphons
  • D. flumes.

  • Correct Answer
  • flumes. 


  • Water Supply Engineering problems


    Search Results


    • 1. P.V.C. pipes can withstand pressure bead of water upto

    • Options
    • A. 25 m
    • B. 50 m
    • C. 75 m
    • D. 100 m
    • E. 125 m.
    • Discuss
    • 2. Plain chlorination is used for water

    • Options
    • A. with turbidities less than 20 mg/litre
    • B. obtained from clear lakes
    • C. consumed during emergencies
    • D. supplies to armies during war
    • E. all the above.
    • Discuss
    • 3. The intake opening is generally covered by a screen to prevent entry of debris etc. and its level is kept

    • Options
    • A. at the level of water of the source
    • B. at the bottom of water of the source
    • C. at about 2.5 m above the bottom
    • D. none of these.
    • Discuss
    • 4. Cast iron pipes

    • Options
    • A. are widely used in city water supplies
    • B. resist corrosion satisfactorily
    • C. may last for 100 years
    • D. are normally manufactured in lengths of about 3.5 m
    • E. all the above.
    • Discuss
    • 5. Pick up the correct statement from the following :

    • Options
    • A. The pH value of neutral water is 7
    • B. The maximum acidity is obtained when pH value is zero
    • C. The maximum alkalinity is obtained when pH value is 14.
    • D. All the above.
    • Discuss
    • 6. The maximum non-verticality of the bore of a well 200 m deep, may be permitted up to

    • Options
    • A. 25 cm
    • B. 50 cm
    • C. 75 cm
    • D. 100 cm
    • E. 150 cm.
    • Discuss
    • 7. Pick up the correct statement from the following :

    • Options
    • A. The ratio of the total sediment deposited in the reservoir to the total sediment flowing in the river, is called trap efficiency
    • B. The ratio of the reservoir capacity to the total inflow of water in it, is generally called capacity inflow ratio
    • C. Small capacity reservoirs on large rivers generally, silt less
    • D. Large capacity reservoirs on small rivers generally silt more
    • E. All the above.
    • Discuss
    • 8. From the surface of reservoir, evaporation may be minimised by sprinkling

    • Options
    • A. Spirit
    • B. Hydrochloric acid
    • C. Acetyl alcohol
    • D. Methane
    • E. None of these.
    • Discuss
    • 9. According to Godrich the ratio of peak demand rate to mean demand is

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. All the above.
    • Discuss
    • 10. Alkalinity in water may be caused due to

    • Options
    • A. calcium and magnesium bicarbonates
    • B. sodium carbonate
    • C. potassium carbonate
    • D. calcium hydroxide
    • E. all the above.
    • Discuss


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