Question

The discharge through a trapezoidal channel is maximum when​

Answer 1

Answer:

The discharge through a trapezoidal channel is maximum when the sloping slide is equal to half the width at the top

Answer 2

When a channel section can pass a maximum discharge for a given cross-sectional area, resistance coefficient, and bottom slope, it is considered to be economical.

Discharge, $Q=A\times \frac{1}{n} R^{\frac{2}{3} } S_{0} ^{\frac{1}{2} }$

Hence, when the hydraulic radius$(R)$ is highest and the perimeter$(R=\frac{A}{P})$ is lowest, the discharge is maximum.

#SPJ3