Figure shows 40 cm sprinkler with unequal arms. The jets issuing out of the sprinkler arm of 0.8 cm in diameter and the total discharge is 1.2 l/s. (a) Assuming zero friction, determine the rotational speed of the sprinkler. (b) What torque would be required to hold the sprinkler stationary? 60 20 cm V2
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- A sprinkler with unequal arms and jets of area 75 mm² facing in the same direction as shown. A flow of 0.002 m³/s enters the assembly normal to the rotating arm. (a) Assuming the frictional torque to be 0.115 Nm, (a) Calculate the speed of rotation (b) What torque is required to hold it from rotating?Questions #1 The water system in a suburban area consists of old 9-inch pipeline 2,280 ft. long which conveys water from a pump to a reservolr whose water surface as 326 ft. higher than the pump. Water is pumped at the rate of 3.09 cfs. Determine the horsepower saved by replacing the old pipe with a new 12-inch pipe. Assume the values of f as equal to 0.050 and 0.012. respectively, for the old and new pipes. Neglect Losses of head except friction head. A. 38.17 B. 42.89 C. 50.27 D. 54.56 Questions #2 A new cast iron pipe must carry 3.945 mm/s at a head loss of 9.8 m per 4 km length of pipe. Compute the diameter of the pipe in m using Darcy Weishback Formula with f = 0.038. A. 1.98 B. 2.062 C. 1.744 D. 1.819Given a portion of a water supply pipe network system below. Determine the actual flow in each pipe and the respective head losses. Assume flow in pipes AB and DE in loop I and II respectively equal to 0.10 m3/s clockwise for the first trial. Use Darcy-Weisbach Formula with f = 0.02. Pipes Length (m) Diameter (cm) AB 500 20 BC 600 15 CD 500 20 DE 400 20 EA 700 25 AC 1000 15
- Show all problem solution's steps. Direct formula substitution solutions will have NO CREDIT POINTS. 1. A 75 mm diameter fire hose discharges water through a nozzle having a jet diameter of 25 mm. The lost head in the nozzle is 25% of the velocity head in the jet. If the pressure at the base of the nozzle is 625 KPa: compute the discharge in m3/min; the maximum horizontal range to which the stream can be thrown; the maximum vertical reach, and the diameter of the jet at a point two-third of the maximum vertical reach from the tip of the nozzle. Neglect air resistance.A pump draws 52 lit/sec of water from reservoir A to reservoir B as shown. Assuming f = 0.041 for all pipes, compute the horsepower delivered by the pump Elevation of reservoir A = 13 m Elevation of reservoir B = 89 m Pipeline 1 : 236 mm, 712 m (diameter, length) Pipeline 2 : 156 mm, 1595 m (diameter, length) Round your answer to 3 decimal places.The venture meter shown carries oil (sg=0.80). Calculate the volume flow rate of the system
- An open cylindrical tank 2m in diameter and 4m high contains water to a depth of 3m. It is rotated about its own vertical axis with a constant angular speed w. If w = 4 rad/sec, what is the volume of liquid spilled? Unit of the Correct Answer: rpm Decimal Places required in the final answer: 2An open cylindrical tank 60 cm in diameter and 60 cm high is 2/3 full of water. If the tank is rortated about its axis at the center, a.) what is the maximum speed it can have without spilling? b.)what speed must it have so that there is no water within 15 cm. from the axis of rotation? At this speed, how much volume is spilled?Calculate the diameter of a pipe that must carry 140 L/min at a velocity of 5 m/s *.
- Questions #1 Water flows at the rate of 0.16 L/s through a 200 mm diameter pipe. If its Viscosity is 1.15x10^6 m^2/s what is the type of flow? A. Subcritical B. Turbulent C. Supercritical D. Laminar Questions #2 From the steel pipe network shawn in Figure, the supply of water is 350 lit/sec. Calculate the following: a) Rate of flow of water in pipe 2 in Lit/s ( A. 151.7 , B. 198.3 C. 167.2 , D. 175.1) b) Rate of flow of water in pipe 4 in Lit/s ( A. 151.7 , B. 198.3 C. 175.1 , D. 198.3)diameter of pipe = 200mm Cc = 0.61Cv = 0.97 Considering the figure, what is the flow of water?A 12-inch by 6-inch Venturi meter is installed in a vertical pipeline carrying water as shown inthe Figure C. The flow is upward through the meter. A differential manometer containing fluid,with sp.gr 1.67, is attached to inlet and throat, the difference z in gage levels being 5.76 ft.Neglecting loss of head, write energy equation from inlet to throat of meter. Also write stepby step equation of the differential gage between inlet and throat and combine the twoequations to compute the discharge