1.A water pipe gradually changes from 6" to 8" diameter accompanied by an increase of elevation of 10'. If the pressures at 6" and 8" sections are 9 psi and 6 psi respectively, what is the direction of flow: (a) for 3 cfs and (b) for 4 cfs?
2.For a triangular channel of z=2 side slopes tha tcarries a discharge of 100 cfs at a depth of 5 ft, determine the channel slope S under the assumption that normal flow exists and that n equals 0.022. Assume that the channel is dug in sand, check if it is susceptible or deposition.
3.Determine the energy loss due to the gradual enlargement from a 25 mm pipe to a 75 mm pipe when the velocity of flow is 3 m/s in the smaller pipe and the cone angle of enlargement is 20°C.