Question 5 Determine the most efficient section of a trapezoidal channel with side slopes 1 vertical to 2 horizontal, carrying a discharge of 11.25 m3 /s with a velocity of 0.75 m/s. What should be

Question 4 An open rectangular channel laid at a constant slope is required to carry a maximum discharge of 5 m3 /s and a minimum discharge of 1 m3 /s at a constant velocity of

Trapezoidal Channel Question 3 A canal is to have a trapezoidal section with one side vertical and the other sloping at 45 degrees. It has to carry 30 m3 of water per second with a

Discharge formula for a trapezoidal channel Question 2 Show that the discharge formula for a trapezoidal channel, having Manning’s coefficient n = 0.0126 and carrying maximum flow is given by where Q is discharge in

Maximum flow in trapezoidal channel Question 1. Show that for a trapezoidal channel of given area of flow, the condition of maximum flow requires that hydraulic mean depth is equal to one half the depth