Allied & ICAR Exam Bank • ALLIED_1155 NAT • 2 Marks

Section 4: Soil and Water Conservation Engineering

Hydrology and Runoff

Subtopic: SCS Curve Number Method

Question Statement:

For a watershed with an SCS Curve Number $CN = 80$, the maximum potential soil water retention $S$ in mm is

Answer Key:

63.5

Step-by-Step Solution & Explanation

$S = \frac{25400}{80} - 254 = 317.5 - 254 = 63.5\text{ mm}$.
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