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  • Question
  • A unit hydrograph is a hydrograph of a rain storm of a specified duration resulting from a run-off of


  • Options
  • A. 15 mm
  • B. 20 mm
  • C. 25 mm
  • D. 30 mm.

  • Correct Answer
  • 20 mm 


  • Water Resources Engineering problems


    Search Results


    • 1. Pick up the correct statement from the following :

    • Options
    • A. The zone below water table, is called zone of saturation
    • B. The zone above water table, is called zone of aeration
    • C. The water which exists in the zone of saturation, is called ground water
    • D. Water in the zone of saturation, remains under hydrostatic pressure
    • E. All the above.
    • Discuss
    • 2. The Dupuit formula is based on

    • Options
    • A. one observation well
    • B. two observation wells
    • C. three observation wells
    • D. no observation well
    • E. none of these.
    • Discuss
    • 3. According to Thiem, the permeability of an aquifer may be obtained from the equation

    • Options
    • A.
    • B.
    • C.
    • D.
    • E. all the above.
    • Discuss
    • 4. The polythene bottles are used for collecting rain water and. their capacities is

    • Options
    • A. 2 litres
    • B. 4 litres
    • C. 10 litres
    • D. all the above.
    • Discuss
    • 5. Hydrology is the science which deals with

    • Options
    • A. rain water
    • B. river water
    • C. sea water
    • D. surface and underground water
    • E. flood water.
    • Discuss
    • 6. The average mean velocity of a stream having depth h, may be obtained by taking the average of the readings of a current meter at a depth of

    • Options
    • A. 0.1 h and 0.9 h
    • B. 0.2 h and 0.8 h
    • C. 0.3 h and 0.7 h
    • D. 0.4 h and 0.6 h.
    • Discuss
    • 7. In nature water may occur as

    • Options
    • A. liquid
    • B. solid
    • C. vapours
    • D. all the above.
    • Discuss
    • 8. For high flood estimates the average value of the constant C in Dicken's formula Q = CA3/4, is

    • Options
    • A. 6.5
    • B. 8.5
    • C. 9.5
    • D. 10.5
    • E. 11.5
    • Discuss
    • 9. Izzard formula for the time of concentration in minutes for the plots having no channels, is (where Lo is the length of overland flow in metres and Kp rainfall intensity in cm/hour)

    • Options
    • A.
    • B.
    • C.
    • D.
    • Discuss
    • 10. Pick up the correct statement from the following :

    • Options
    • A. The intensity of rain is the rate at which it falls
    • B. The duration of rain is the time for which it falls with a given intensity
    • C. The frequency of rain is the number of times, if falls
    • D. All the above.
    • Discuss


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