The most economical section of a trapezoidal channel is one which has – McqOptions

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1.	The most economical section of a trapezoidal channel is one which has hydraulic mean depth equal to
A.	1/2 depth
B.	1/2 breadth
C.	1/2 sloping side
D.	1/4 (depth + breadth)
Answer» B. 1/2 breadth

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