The discharge in a rectangular channel of width 7m and max depth of 3m is 10 m3/s. The normal depth is 2.55m. Determine the depth of flow downstream of a section in which the bed rises by 0.5m over a distance of 1m.

5. A tar coated (n = 0.014) triangular channel has 45ᵒ sides and slope of 0.0004. Compute the normal depth for a discharge of 140 ft3/s.

Water flows in a channel of the shape of isosceles triangle of bed width 'a' and sides making an angle of 45° with the bed. Determine the relation between depth of flow 'd' and the bed width 'a' for maximum velocity and for maximum discharge condition. Use manning's formula and note that 'd' is less than 0.50a.

2- A 6-m wide concrete-lined trapezoidal channel (n = 0.013) has a sidewall slope of 1V:1.5H, a longitudinal slope of 0.0005, and carries a discharge of 20 m³/s. Calculate: a) normal depth, Yni b) critical depth, yo c) determine the flow regime based on comparison of yn and yc

The velocity and depth of flow in a 3.0 m wide rectangular channel are 2.0 m/s and 2.5 m/s respectively. If the channel has it's width enlarged to 3.5 m at a section, the discharge past section is

6.8.11. A diversion gate backs up flow in a 5-ft wide rectangular irrigation channel (So = 0.001, 0.015). The discharge in the channel is 50 cfs. If the depth of flow at the gate is 5 ft, deter- mine the channel and flow classification (e.g., M-2, S-1) upstream of the gate and explain your supporting logic. Then determine the water surface profile by finding the depth of flow at distances of 200 ft, 500 ft, and 1,000 ft upstream of the gate. Use a spreadsheet or appropriate computer software to perform the computations. (See the book's preface for computer software suggestions.) %3D n%3D

A 3 metre wide rectangular channel flowing at its normal depth of 0.8m carries a discharge of 9.5m³/s. The bed slope of the channel is (a) steep (b) critical (c) mild (d) adverse

A triangular channel has a vertex angle of 90o and carries a flow at critical depth of 0.3m. The discharge in the channel is? (a) 0.11 m3/s (b) 0.21 m3/s (c) 0.31 m3/s (d) 0.41 m3/s