Water flows at a rate of 12 L/s in an 80 mm diameter of galvanized pipe installed in a vertical plane shown in Figure Q2(c). The pipe length from point 1 to point 2 is 85 m, and the 90degree elbow has km = 1.0, while the globe valve has km = 10. Given friction factor, f = 0.0070. Calculate the pressure at point 2.

Water flows at a rate of 500 gal/min through a 400-ft-long line. The first and last 100 ft of the line are 6-in-diameter cast iron pipes, while the middle 200 ft consists of two 4.24-in-diameter cast iron pipes. Find: a. Provide a diagram b. the average velocity in each section of pipe, c. the pressure drop in each length of pipe, and d. the total pressure drop.

As shown in Fig. 4.33, the pipe diameter is d = 25 mm. l1 = 8 m; l2 = 1 m;H = 5 m. The nozzle diameter is d0 = 10 mm, and the minor loss coefficientsof inlet and elbow are f1 = 0.5 and f2 = 0.1 respectively. For nozzle, f3 =0.1 (relative to the outflow velocity of nozzle). The friction factor is k = 0:03.Try to determine jet height h.

Question 3 A pipe of 150mm bore is delivering water at the rate of 7500 dm/min at a pressure of 820 kN/m?.It connects by a gradually expanding pipe to a main of 300 mm bore which runs 3m above it. Find the pressure in the 300mm main?