1. Find: a) Top width T, area A, wetted perimeter P, and hydraulic radius R of Figure 1. b) If Q = 2.4 m/s, determine the state of flow. c) If longitudinal length L = 50 m, find the cost to construct the channel. Given excavation cost = RM 3.50/m³ and lining cost = RM 5.30/m². 1m Az A 2 m 2m 1m 2m 4 m 3 m Figure 1

Please write legibly, complete solutions, avoid rounding off intermediate values, thanks.

At a well the ground elevation is 1510.0 (m asl), the depth to the water is 5.0 (m) and the lithology is 0-10 m sand; 10-12 m grey clay. What is the hydraulic head in m asl and the hydraulic gradient?

3. A rectangular box culvert has a 90º headwall with 33.7º bevels, and the inlet is mitered. The width of the culvert is b = 4 ft and the height is d=5 ft. The culvert is 100 m long with a slope of S = 0.01. Prepare a plot of HW versus Q for this culvert if it is to operate under inlet control.