A stable channel is to be designed for a discharge of Q m 3 /s with silt factor f as per Lacey's method. The mean flow velocity (m/s) in the channel is obtained by

A stable channel is to be designed for a discharge of Q m 3 /s with si

1.	A stable channel is to be designed for a discharge of Q m 3 /s with silt factor f as per Lacey's method. The mean flow velocity (m/s) in the channel is obtained by
A.	( Qf 2 /140) 1/6
B.	( Qf /140) 1/3
C.	( Q 2 f 2 /140) 1/6
D.	0.48 ( Q / f ) 1/3
Answer» B. ( Qf /140) 1/3

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A stable channel is to be designed for a discharge of Q m 3 /s with silt factor f as per Lacey's method. The mean flow velocity (m/s) in the channel is obtained by

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