Consider the three-reservoir problem shown. Pipes from three reservoir meet at point D which is at elevation 370m and the pressure at this junction is 175 kPa. Solve for the discharge and the elevation of reservoir C. El. 470m A El. 410m L2=1500m L1=2500m D1=400mm f1=0.025 D2=200mm f2=0.022 El. 370m L3 =2000m D3=450mm f3=0.018

What is pipe roughness? A pump is located 5 m above the surface = 8170 M/m¹) in a closed tank. The pressure in the space above liquid surface is 35 Kpa. The suction line to the pump is 15 m of 15 cm diameter pipe (/= 0.025). The discharge from the pump is 60 m of 20 cm diameter pipe (/= 0.03). The pipe discharges in a submerged fashion to an open tank whose free liquid surface is 3 m lower than the liquid surface in the pressure tank. If pump puts 1.5 kW Into the liquid, determine the flow rate and the pressure in the pipe on the suction side of the pump. Assume turbulent flow.

Water flows through the branching pipe shown in the figure below. The flowrate at section (1) is Q₁ = 1.1 m³/s, and the velocity at section (2) is V₂ = 17 m/s. A₁ = 0.1 m² P1 = 300 kPa 21 = 0 P3 = -147.2 A3 = 0.035 m² Z3 = 10 m (1) (2) If viscous effects are negligible, determine the pressure at section (2) and the pressure at section (3). P2 = i 315.3 kPa kPa (3) A₂ = 0.03 m² 22 = 0

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