Question An irrigation channel of trapezoidal section, having side slopes 3 horizontal to 2 vertical, is to carry a flow of 10 cumec on a longitudinal slope of 1 in 5000. The channel is to

Problem on rectangular section Question 15.5, State the conditions under which the rectangular section of an open channel will be most economical. Derive these conditions. Solution

Question 6 An open channel is to be constructed of trapezoidal section and with side slopes 1 vertical to Find the proportions (i.e., relation between bottom width and depth of flow) for minimum excavation (i.e.,

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