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  • Question

  • The rate of rainfall for successive 10 minute periods of a 60 minute duration storm, are shown in the below figure. If the value of ?index is 3 cm/hour, the run off will be
    The rate of rainfall for successive 10 minute periods of a 60 minute duration storm, are shown in th


  • Options
  • A. 2 cm
  • B. 3 cm
  • C. 4 cm
  • D. 5 cm.

  • Correct Answer
  • 3 cm 

    • Water Resources Engineering problems

    Search Results

    • 1. Rain simulators are used for the determination of

    • Options
    • A. evaporation
    • B. precipitation
    • C. run off
    • D. infiltration capacity
    • E. none of these.
      • Discuss
    • 2. Pick up the correct statement from the following :

    • Options
    • A. The throat of the section of a control meter is either rectangular or trapezoidal
    • B. The floor of the control meter throat is almost level
    • C. The floor of the expanding outlet of the control meter is given a steep slope
    • D. A properly designed control meter is associated with the phenomena of hydraulic jump
    • E. All the above.
      • Discuss
    • 3. Pick up the incorrect statement from the following :

    • Options
    • A. At two meteorologically homogeneous stations, the average annual precipitation is same
    • B. If the average annual precipitation at two places is same these are meteorologically homogeneous stations
    • C. Neither (a) nor (b)
    • D. Both (a) and (b).
      • Discuss
    • 4. The equation which is used for determining the velocity of ground water flow in metres per day is known as

    • Options
    • A. Meinzer's formula
    • B. Slichter's formula
    • C. Darcy's formula
    • D. Hazen formula.
      • Discuss
    • 5. The rainfall cycle period in India is taken as

    • Options
    • A. 15 years
    • B. 20 years
    • C. 25 years
    • D. 30 years
    • E. 35 years.
      • Discuss
    • 6. Pick up the correct statement from the following :

    • Options
    • A. The specified duration of unit hydrograph, is called unit duration
    • B. The rain during specified duration, is called unit storm
    • C. A unit hydrograph for a particular unit duration may be utilised for evaluating the run off hydrographs of other storms of like durations
    • D. The number of unit hydrographs for a given basin, is theoretically infinite
    • E. All the above.
      • Discuss
    • 7. If total run off of a basin of 50 hectares is 0.8 cm, the ordinate of Bernard's distribution graph, may be calculated by the formula (where Q is the discharge in cumecs at the given time)

    • Options
    • A. y = 50 Q
    • B. y = 100 Q
    • C. y = 150 Q
    • D. y = 200 Q
    • E. y = 250 Q
      • Discuss
    • 8. A well is sunk in an unconfined aquifer having a saturated depth of 100 m. Assuming the equilibrium flow conditions and a homogeneous aquifer and radius of influence to be same, the ratio of discharges at 20 m and 40 m draw downs, is

    • Options
    • A. 2/3
    • B. 5/4
    • C. 4/5
    • D. 7/8
    • E. 8/7
      • Discuss
    • 9. Pick up the correct statement from the following :

    • Options
    • A. A confined bed of impervious material laid over an acquifer, is known as an aquiclude
    • B. The top most water bearing strata having no acquifer, is known as non-artesion acquifer
    • C. The ordinary gravity wells which supply water from the top most water bearing strata, are called water table wells
    • D. A permeable stratum which is capable to yield appreciate quantities of ground water, is known as an aquifer
    • E. All the above.
      • Discuss
    • 10. Discharge curve may be extended by logarithmic method if

    • Options
    • A. cross section of river is uniform
    • B. river is broader and shallower
    • C. river is of any type
    • D. none of these.
      • Discuss

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