If the velocity of flow through a wide rectangular channel is 2m s and – McqOptions

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1.	If the velocity of flow through a wide rectangular channel is 2m s and the rate of change of depth is 3 10^-5m, calculate the manning s constant of the channel if the uniform flow depth is 1m and y_n=0.6m. Given: Critical depth = 0.5m.
A.	0.38 10<sup>-3</sup>
B.	1.38 10<sup>-3</sup>
C.	2.38 10<sup>-3</sup>
D.	3.38 10<sup>-3</sup>
Answer» D. 3.38 10<sup>-3</sup>

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