Allied & ICAR Exam Bank • ALLIED_0421 NAT • 2 Marks

Section 4: Soil and Water Conservation Engineering

Hydrology and Runoff

Subtopic: Hydrology and Runoff

Question Statement:

Total precipitation $P = 85\text{ mm}$, total runoff $R = 35\text{ mm}$, initial abstraction $I_a = 10\text{ mm}$, and storm duration $t_r = 5\text{ h}$. The $W$-index in mm/h is:

Answer Key:

8

Step-by-Step Solution & Explanation

$W = \frac{85 - 35 - 10}{5} = \frac{40}{5} = 8.0\text{ mm/h}$.
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