4.(b) A pipe ABC connecting two reservoirs is 80 mm in diameter. From A to B the pipe is horizontal as shown in the following figure, and from B to C it falls by 3.5 metres. The length AB and BC are 25 and 15 m respectively. If the water surface in the reservoir at A is 4 m above the centre line of the pipe and at C 1 m above the centre line of the pipe, calculate the quantity of flow and also the pressure head in the pipe at B. Neglect the loss at the bend but consider all other losses. Take Darcy f = 0.024. Draw the energy and hydraulic grade lines. 4 m 3.5 m C Ilm

Three reservoirs A, B and C are connected by a pipe system as shown in the following figure. The length and diameter of pipe 1, 2 and 3 are 2000m, 1000m, 500m and 30cm, 25cm, 20cm respectively. Find the discharge into or from the reservoir B and C if the rate of flow from reservoir A is 50 lit/s. Find the height of water level in the reservoir C. Take coefficient of friction = 0.005  for all three pipes.

The flowrate of the flow is 0.20 + a/10 m3 /s in a pipe placed on a horizontal plane. The pipe diameters are D1= 0.30 m and D2= 0.20. Please find the force acting to the pipe by the flow. The gauge pressure at (1) is p1 =200 + b*10 kN/m2 . (g=9,81 m/s2, g=10kN/m3 ) a= 4 b=3

A 40 cm diameter pipe 600 m long carries 260 liters per second of water from reservoir A, discharging into two pipes each 500 m long. One pipe is 30 cm in diameter and leads to reservoir B, in which the water surface is 5 m lower than in A. If the water surface in reservoir C is 7 m lower than that at reservoir A, determine the diameter of the pipe leading to reservoir C. Use Darcy-Weisbach formula with f = 0.022.