GATE CE 2015 Set 1 — Question 55

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NAT+2 / -0HardGradually Varied FlowHydraulic Jump & Varied FlowWater Resources Engineering

Water Resources Engineering → Hydraulic Jump & Varied Flow → Gradually Varied Flow

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A short reach of a 2 m2\text{ m} wide rectangular open channel has its bed level rising in the direction of flow at a slope of 11 in 1000010000. It carries a discharge of 4 m3/s4\text{ m}^3/\text{s} and its Manning's roughness coefficient is 0.010.01. The flow in this reach is gradually varying. At a certain section in this reach, the depth of flow was measured as 0.5 m0.5\text{ m}. The rate of change of the water depth with distance, dy/dxdy/dx, at this section is ——————————————— (use g=10 m/s2g = 10\text{ m}/\text{s}^2).
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