A channel is said to be of most economical cross-section, if

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📊 Hydraulics and Fluid Mechanics

Q. A channel is said to be of most economical cross-section, if

(A) it gives maximum discharge for a given cross-sectional area and bed slope
(B) it has minimum wetted perimeter
(C) it involves lesser excavation for the designed amount of discharge
(D) all of the above

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✅ Correct Answer: (D) all of the above

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