Problem
A triangular shaped channel is to be designed to carry 700 L/s on a slope of 0.0001. Determine what Vertex Angle and depth of water over the vertex will be necessary to give a section with minimum perimeter, assuming the channel is made of timber, n = 0.012. Use Manning’s formula.
| A. θ = 45°, h = 1.425 m | C. θ = 45°, h = 2.125 m |
| B. θ = 90°, h = 2.215 m | D. θ = 90°, h = 1.215 m |
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