Allied & ICAR Exam Bank • ALLIED_0407 NAT • 2 Marks

Section 4: Soil and Water Conservation Engineering

Hydrology and Runoff

Subtopic: Hydrology and Runoff

Question Statement:

If $L = 900\text{ m}$ ($900^{0.77} \approx 188.75$) and $S = 0.04$ ($0.04^{-0.385} \approx 3.456$), the value of $t_c$ in minutes is (rounded off to one decimal place):

Answer Key:

12.7

Step-by-Step Solution & Explanation

$t_c = 0.01947 \times 188.75 \times 3.456 = 12.70\text{ min}$.
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