Civil Engineering MCQAE Level Civil Engineering
A triangular DRH due to a storm has a time base of 40 h and peak flow of 20 m^3/s occurring at 20 h from start. If catchment area is 14.4 sq. km, rainfall excess is
HydrologyHydrologyMEDIUM
Choose the correct answer
A
5 cm
B
10 cm
C
20 cm
D
14.4 cm
Correct Answer
B. 10 cm
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Runoff volume = 0.5 x 40 x 3600 x 20 = 1.44 million m^3; over 14.4 km^2 this is 0.10 m = 10 cm
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This MCQ belongs to WBPSC AE Previous Years Questions Series. Full tests include timed attempts, rank comparison and subject-wise analysis.