Design the water distribution network given below by using the Hardy-Cross method. Use the Darcy-Weisbach equation for head losses. £= 0.015 E= v=1.14 x 10 m²/s Pipe Length (m) Diameter (mm) AB 500 250 BD 150 AC 300 CD 250 CE EF DF 400 400 500 400 500 400 1.325 [Ln (3.70D+54) Re 150 lit/s 35 lit/s A C E 250 150 200 LV² D2g B D F 35 lit/s 35 lit/s 45 lit/s

Quo Put a Circle around the CORRECT Answer 1- Given: *Length of Secondary open drain Lopen = 2400 (m). *Tile Drains Spacing, S = 80 (m). * Flow Rate of Secondary Open Drain, Qopen = 5580 (m³/d). (a) Qrile 200 (m³/s) (b)QTile = 300 (m³/s) (c) Qrile = 186 (m³/s) 2- Given: * Effective depth of the impermeable layer below Tile Drain level, *de = 12 (m). *Hydraulic conductivity of soil layer located above Tile Drains level, Ka = 6 (m/d). * Hydraulic conductivity of soil layer located below Tile Drains level, Kb = 0.5 (m/d). * Maximum height of W.T. above Tile Drains level at mid-distance Ho = 0.8 (m) *Drain Spacing S = 45 (m) Drainage Coefficient R. is: (a) 0.001 (m of water/d) (b) 0.015 (m of water/d) (c) 0.026(m of water/d) P-12 3- An agricultural farm is cultivated by mixed crops. There is no drainage system in farm. The available data are: *Leaching Requirements of the farm, LR = 37% *Depth of Irrigation Water, (dw)i = 0.081 (m of water/Irrigation) *Depth of drained water (dw) is: (a) 1…

Determine the shaft horsepower for an 80% efficient pump to discharge 30L/s through the system. The system losses, exclusive of pump losses, are 12V2/2g and H = 16m. Ans: 8.75hp H 150mm dia