GATE CE 2017 Set 1 — Question 31
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Water Resources Engineering → Hydraulic Jump & Varied Flow → Classification of GVF Profiles
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Question
A wide rectangular channel has a bed slope of and the Manning's roughness coefficient is . Uniform flow takes place in the channel at a flow depth of . At a particular section, gradually varied flow (GVF) is observed and the flow depth is measured as . The GVF profile at that section is classified as
Correct answer
(C) M₁
Solution
1.Calculate Normal Depth (): Given as .
2.Calculate Discharge (): Using Manning's equation
- Since (), the slope is Mild ().
- The actual depth .
- Since (), the profile is in Zone 1, hence .
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