What is the hydraulic radius of a stable canal

What is the hydraulic radius of a stable canal carrying a discharge of 27 m3/s using Lacey’s method? (Assume silt factor is 1.0) [A] 1.44 m [B] 2

What is the hydraulic radius of a stable canal carrying a discharge of 27 m3/s using Lacey’s method? (Assume silt factor is 1.0)





ANSWER= [A] 1.44 m

Detailed Solution for Civil Engineering Exam

Hydraulic radius (R) = 0.47(Q/f)1/3

R = 0.47(27/1)1/3

R = 1.41 m

Here closest answer is option A 1.44 m


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