The depth of flow in an alluvial channel is 1.5 m. If critical

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The depth of flow in an alluvial channel is 1.5 m. If critical velocity ratio is 1.1 and Manning’s ‘n’ is 0.018, the critical velocity of the channel as per Kennedy’s method is

1. 0.713 m/s
2. 0.784 m/s
3. 0.879 m/s
4. 1.108 m/s

Correct Option: B

NA