Civil Engineering - Water Resources Engineering

Exercise :: Water Resources Engineering - Section 2

41. 

The Dupuit formula is based on

A. one observation well
B. two observation wells
C. three observation wells
D. no observation well
E. none of these.

Answer: Option D

Explanation:

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42. 

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

A. 2/3
B. 5/4
C. 4/5
D. 7/8
E. 8/7

Answer: Option E

Explanation:

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43. 

Evaporation losses depend upon

A. area of the water surface and depth of the water
B. nature of precipitation and type of vegetation
C. humidity and wind velocity
D. atmospheric temperature
E. all the above.

Answer: Option E

Explanation:

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44. 

Phytometer method is generally used for the measurement of

A. interception
B. evaporation
C. transpiration
D. none of these.

Answer: Option C

Explanation:

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45. 

In the estimate of design flood, Dickens assumes that high flood in cumecs, is proportional to catchment area raised to the power

A.
B.
C.
D.

Answer: Option C

Explanation:

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