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  • Question

  • In estimating the rate of evaporation from the reservoir surface, a pan 1.5 metres in diameter, was filled upto 8.0 cm. During a specified period of time, the rainfall recorded was 5 cm. 3 cm of water was removed from the pan to keep the depth of water. At the end of the time, the depth was 9 cm. If the pan coefficient is 0.6, the evaporation loss is


  • Options
  • A. 2 mm
  • B. 4 mm
  • C. 6 mm
  • D. 6 mm.

  • Correct Answer
  • 6 mm 

    • Water Resources Engineering problems

    Search Results

    • 1. If the loss due to friction in pipes is 4 m, the total losses in strainer and bends may be taken as

    • Options
    • A. 0.10 m
    • B. 0.20 m
    • C. 0.5 m
    • D. 1.0 m.
      • Discuss
    • 2. From the pattern of the rainfall shown in the below figure, the total precipitation is

    • Options
    • A. 4 cm
    • B. 4.5 cm
    • C. 5 cm
    • D. 5.5 cm
    • E. 6 cm.
      • Discuss
    • 3. Boston society of Civil Engineer's formula in cumecs/square km is based upon

    • Options
    • A. rainfall and drainage area
    • B. total run off and drainage area
    • C. drainage area and its shape
    • D. drainage area.
      • Discuss
    • 4. In the estimate of design flood, Dickens assumes that high flood in cumecs, is proportional to catchment area raised to the power

    • Options
    • A.
    • B.
    • C.
    • D.
      • Discuss
    • 5. Isohytes are the imaginary lines joining the points of equal

    • Options
    • A. pressure
    • B. height
    • C. humidity
    • D. rainfall.
      • Discuss
    • 6. If the slope of a line for infiltration capacity curve is , the value of constant k in Horton's equation of infiltration capacity curve, is

    • Options
    • A. 2.0
    • B. 2.5
    • C. 3.0
    • D. 3.5
    • E. 4.0.
      • Discuss
    • 7. The radius of influence is

    • Options
    • A. radius of the main well
    • B. distance from the wall of main well to the point of zero draw down
    • C. distance from the centre of main well to the point of zero draw down
    • D. none of these.
      • Discuss
    • 8. The respective storm totals at three surrounding stations A, B and C are 110, 90 and 70 mm. If the normal annual precipitation amounts at stations X, A, B and C are respectively 1000, 1100, 1200 and 1250 mm, the estimated storm precipitation at X is

    • Options
    • A. 75 mm
    • B. 77 mm
    • C. 79 mm
    • D. 81 mm.
      • Discuss
    • 9. Sharp crested weirs are generally used

    • Options
    • A. for large flows
    • B. for small flows
    • C. for streams carrying high sediment loads
    • D. for rivers carrying floating debris
    • E. none of these.
      • Discuss
    • 10. The area of a drainage basin whose axial length is 100 km is 2500 sq. km. Its form factor is

    • Options
    • A. 0.10
    • B. 0.20
    • C. 0.25
    • D. 0.30
    • E. 0.35
      • Discuss

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