Civil Engineering - Water Resources Engineering

Exercise :: Water Resources Engineering - Section 2

46. 

For high flood estimates the average value of the constant C in Dicken's formula Q = CA3/4, is

A. 6.5
B. 8.5
C. 9.5
D. 10.5
E. 11.5

Answer: Option E

Explanation:

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47. 

Pettis formula Q = C (P.B)5/4 cumecs, is based upon

A. rainfall and drainage area
B. run off and drainage area
C. drainage area and its shape
D. drainage area.

Answer: Option A

Explanation:

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48. 

Boston society of Civil Engineer's formula in cumecs/square km is based upon

A. rainfall and drainage area
B. total run off and drainage area
C. drainage area and its shape
D. drainage area.

Answer: Option B

Explanation:

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49. 

For predicting floods of a given frequency, the best reliable method is

A. Unit hydrograph method
B. Gumbel's analytical method
C. California method
D. None of these.

Answer: Option A

Explanation:

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50. 

The earthen embankments constructed parallel to the river banks at some suitable distance for flood control, are known as

A. floods walls
B. river walls
C. levees
D. dikes
E. both (c) and (d).

Answer: Option E

Explanation:

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