in most economical Trapezoidal section, half of the Top width is equal to _________________?
Correct answer: C. Sloping side of channel
- A. Bottom width of channel
- B. Depth of channel
- C. Sloping side of channel
- D. None of these
Explanation
For the most economical trapezoidal channel, the half top width equals the length of one sloping side. This condition gives the minimum wetted perimeter for the required area and therefore the greatest hydraulic efficiency.
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