The hydraulic radius for flow in a rectangular duct of cross-sectiona – McqOptions

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1.	The hydraulic radius for flow in a rectangular duct of cross-sectional dimension H, W is
A.	√(HW/π)
B.	HW/2(H + W)²
C.	HW/4(H + W)²
D.	2HW/(H + W)²
Answer» C. HW/4(H + W)²

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