Problem 1 Along a 50-m pipeline, there is a half-open globe valve (K = 10), four 90-degree smooth bends (K = 0.45), and six 45-degree elbows (K = 0.15). Ignoring the major head loss, what will be the pressure drop in this pipe if the flow velocity is 1 m/s? Fluid is water: Specific weight = 9810 N/m³. Assume a = 1.0 throughout.

5.) A horizontal pipe gradually reduces from 250 mm to 150 mm diameter section, the pressures are 90 kPa and 70 kPa, respectively. If the flow rate is 15 L/s of water, compute the head lost (m) between the two sections.

Water flows in a l-in-diameter pipe at 10 ft/s. If a pitot-static tube of 0.5-in diameter is inserted, what velocity will be indicated? Assume one- dimensional frictionless flow. Find the pitot-static-tube diameter needed reduce the above error to 1 percent.

Reservoirs A and B with water levels at 72 m and 57 m respectively above datum are connected to a junction J located at 43 m above datum. A third pipeline connects a third reservoir with the junction. The pipeline parameters are as follows. Pipe reach Diameter (mm) 400 Length (m) The friction factor for all the pipes may be assumed as f = 0.02. If a pressure gauge at the junction reads 90 kN/m², determine the distribution of discharges in the three pipes and also the water surface elevation in the reservoir C. Neglect local losses. A AJ BJ CJ 800 600 1000 750 850 C +72.00 400 mm 1000 m H, = +43.00 850 m 300 mm 750 m 600 mm B +57.00 Pressure head +elevation head

Consider the water distribution network. Given the information below, find the flow rate between A and В. A pipe has an absolute roughness of 0.0008 ft. 1.5 MGD of 50 deg F water (kinematic viscosity is 1.410 x 10-5 ft2/s) enters at junction A and leaves at junction B. The acceptable pressure at point D is 40 psig (280 kPa). Elev. 570 ft A 2000 ft. 10in B Elev. 580 ft 1000 ft. 12in 1100 ft. 10in Elev. 590 ft 1500 ft. 8in Elev. 610 ft

Problem 3 Water needs to flow from one large tank with water surface elevation of 120 m to another large tank with water surface elevation of 100 m. The pipe length is 300 m. Determine the minimum required diameter of pipe (ε = 0.41 mm, CH = 120) for the following cases: (a) Darcy Weisbach equation, flowrate must be at least 5000 Lpm; (b) Hazen Williams equation, flowrate must be at least 1 m3/s. Assume available pipe diameters start at 100 mm, are available in increments of 25 mm to 250 mm, then available in increments of 50 mm for larger sizes (i.e., 100, 125, 150, 175, ..., 225, 250, 300, 350, etc)

A circular conduit is to satisfy the following conditions: Capacity when flowing full is 0.13 m³.sec¹, velocity when the depth is one quarter of the diameter is 0.6 m.sec¹¹. Assume the flow is uniform and determine the diameter and the slope of the pipe if you know that Chezy's coefficient is 58 mº.5 sec¹? Answer// D= 460 mm; S= 0.00158

Fluid flows at the rate of 0.272 m/s in a 925 mm diameter pipeline 588 m. long. Specific gravity of fluid is 0.57. Neglecting minor losses and f= 0.012. Compute the head loss in m.   A. 2.684 B. 0.594 C. 3.92 D. 0.064   A system of pipes consists of a 10 inches pipe 2,500 ft. long and an 8 inches pipe 3,600 ft. Long. If Q = 650 gpm and f = 0.013, find the equivaient diameter of the pipes when the pipes are in series.   A. 0.811 ft B. 0.911 ft C. 0.711 ft D. 1.11 ft ft

A discharge of 600 liters/sec. flows through a pipe having a diameter of 400 mm Ø. length of 40 m. long, compute the head loss of the pipeline using: Mannings Equation with n = 0.013 a) 1.39 m. b) 2.84 m. c) 3.32 m. d) 4.47 m. - @Darcy Weishback f = 0.012. a) 1.39 m. b) 2.84 m. - Hazen C = 100. a) 1.39 m. b) 2.84 m. Williams formula with c) 3.32 m. d) 4.47 m. Formula with c) 3.32 m. d) 4.47 m.

In the parallel system shown, pipe 1 has a length of 3000 ft and 20-inch in diameter. Pipe 2 is 5000 ft long and 15-inch in diameter. The pipe is commercial steel with roughness 0.00015 ft. Water temperature is 50°F (kinematic viscosity is 1.41 x 105 ft?/s), and the total discharge is to be 4 ft /s? Use g = 32.2 ft/s?. Determine: The velocity, friction factor, and flow rate of water in pipes 1 and 2. (1) A B