Allied & ICAR Exam Bank • ALLIED_0479 NAT • 2 Marks

Section 4: Soil and Water Conservation Engineering

Watershed Morphometry

Subtopic: Watershed Morphometry

Question Statement:

A watershed has area $A = 78.54\text{ km}^2$ (so diameter of equivalent circle $D_c = 2 \sqrt{A/\pi} = 2 \sqrt{25} = 10.0\text{ km}$). The maximum basin length is $L_b = 12.5\text{ km}$. The elongation ratio $R_e = D_c / L_b = 10.0 / 12.5$ is:

Answer Key:

0.8

Step-by-Step Solution & Explanation

$R_e = 10.0 / 12.5 = 0.80$.
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