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Hydrology & Irrigation

Methods of Maximum Flow Calculation-Part-2

A catchment a...

Question

A catchment area of 60 ha has a runoff coefficient of 0.40. If a storm of intensity 3 cm/h and duration longer than the time of concentration occurs in the catchment, then what is the peak discharge?

A

2.0 m^{3} / s

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B

3.5 m^{3} / s

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C

4.5 m^{3} / s

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D

2.5 m^{3} / s

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Solution

The correct option is A $2.0 m^{3} / s$
The peak discharge is given by
$Q_{p} = \frac{AIR}{360}$

$= \frac{60 \times 3 \times 10 \times 0.4}{360}$
$= 2.0 m^{3} / s$

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