Physics · Fluid Mechanics
For a given cross-sectional area and slope, the most efficient or best economic section for an open channel flow is generally a trapezoidal section (or semi-circular if unrestricted, but among standard practical cross-sections, trapezoidal is the best polygonal section). Considering standard fluid mechanics nomenclature for open channels, the most efficient open channel section of a given shape is:
Verified Solution4 OptionsUpdated: October 2026👁️1 View
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- 1Trapezoidal✓
- 2Rectangular
- 3Triangular
- 4Semi-circle
Correct answer
Trapezoidal
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