Q1.
(a) 1. Answer all of the following : trapezoidal channel has bed A slope = 1.5, width = 4 m, side bed slope = 0.01 and Manning's n = 0.012. If it is carrying a discharge = 40 m3/s at normal depth = 1.5 m, then classify its slope by computing critical depth. \n What is centrifugal pump efficiency?
(c) briefly Describe forms 0t precipitation. \n4 Design a circular primary settling tank
(d) for a sewage treatment plant. Given data are: 4 Flow rate = 27000 m3/d Retention time = 2.5 hr Weir length = 30 m Total number of tanks = 2 Surface loading rate = 30 m3/m2/d \n A 500 mm diameter sewer pipe has
(e) been installed with an invert slope of 0.008. Determine the capacity of flow when the sewer pipe is flowing half-full. The number of sewer pipes used is 2. roughness coefficient is Manning's 0.012. Assume that flow in the sewer pipe is uniform.