Allied & ICAR Exam Bank • ALLIED_3249 NAT • 2 Marks

Section 4: Soil and Water Conservation Engineering

Hydrology

Subtopic: Flood routing, hydrological reservoir and channel routing

Question Statement:

A watershed of area A = 25 ha has runoff coefficient C = 0.4. For design rainfall intensity I = 50 mm/h, the peak runoff rate by Rational formula Q = C*I*A / 360 in m^3/s is approx:

Answer Key:

1.39

Step-by-Step Solution & Explanation

Q = 0.4 * 50 * 25 / 360 = 1.39 m^3/s.
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