Question

Which among the following is the Manning’s equation?

(a) Q = A/v

(b) Q = vA

(c) Q = v+A

(d) Q = v-A

I had been asked this question during a job interview.

My query is from Characteristics of Surface Profiles topic in division Non Uniform Flow in Channels of Fluid Mechanics

Answer 1

The correct answer is (b) Q = vA

The explanation: Manning’s equation is one of the most commonly used equations governing the open channel glow. It is an alternative to the Chezy’s equation. It is an empirical equation that applies to uniform flow in open channels.