The best hydraulic cross section for a rectangular open channel is one whose fluid height is (a) half, (b) twice, (c) equal to, or (d) one-third the channel width.

1. Determine the depth (yo), bearing area (A), and wet circumference (P) of a trapezoidal shaped channel with the following known data mi = 2,5 m2 = 3,5 b = 5,5 m 1. mi Q = 24,5 m³/s m2 n= 0,014 So = 0,0003 %3D

1. In a steady spatially varied flow in a prismatic open channel, the (a) depth does not change along the channel length (b) discharge is constant along its length (c) discharge varies along the length of channel (d) discharge varies with respect to time.

A hydraulic jump is shown in figure below. The depth of flow z₂ after the hydraulic jump is 5 m larger than z₁. The total flow rate in the channel is 450 m³/s and the channel width is 50 m. The length / over which the jump occurs is 0.4 m. ax= If the depth, z₁, is 6 m then what is the average acceleration (ing's) of the liquid as is flows across the jump. 0.21 Hydraulic jump g's V₂