Allied & ICAR Exam Bank • ALLIED_0392 NAT • 2 Marks

Section 4: Soil and Water Conservation Engineering

Open Channel Flow

Subtopic: Open Channel Flow

Question Statement:

A trapezoidal irrigation channel has bed width $b = 2.0\text{ m}$, side slope $z = 1.5$ (horizontal to 1 vertical), and flow depth $y = 1.0\text{ m}$. The cross-sectional flow area $A = (b + z y) y$ in $\text{m}^2$ is:

Answer Key:

3.5

Step-by-Step Solution & Explanation

$A = (2.0 + 1.5 \times 1.0) \times 1.0 = (2.0 + 1.5) \times 1.0 = 3.5\text{ m}^2$.
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