If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by

If is the rugosity coefficient, is the bed slope of sewer, the velocit

1.	If is the rugosity coefficient, is the bed slope of sewer, the velocity of flow in m/sec may be obtained by the formula V = (1/n) r2/3 s1/2 evolved by
A.	Chezy
B.	Manning
C.	Bazin
D.	Kutter
Answer» C. Bazin