The lawn sprinkler consists of four arms that rotate in the horizontal plane (Figure 1). The diameter of each nozzle is 8 mm, and the water is supplied through the hose at 0.005 m /s and is ejected through the four nozzles into the atmosphere.

A submersible, multi-stage centrifugal deep well pump 260 gpm capacity is installed in a well 27 feet below the static water level. Drawndown when pumping at rated capacity is 10 feet. The pump delivers the water into a 25,000 gallons capacity overhead storage tank. Total discharge head developed by pump, including friction in piping is 243 feet. Calculate the diameter of the impeller of this pump in inches if each impeller diameter developed at a head of 38 ft. .

Part 1 Part 2 Part 3 hp A centrifugal pump having a 7.5-in-diameter impeller and the characteristics shown in the figure below is to be used to pump gasoline through 4000 ft of commercial steel 3-in.-diameter pipe. The pipe connects two reservoirs having open surfaces at the same elevation. Determine the flowrate. Do you think this pump is a good choice? This figure is referred to as the pump performance characteristics. 500 8 in. dia 400 7 出300 6 Head, ft 200 100 65 60 55 50 40 bhp 30 25 20 80 ° 40 120 160 200 240 280 320 Capacity, gal/min Write the system equation for this flow system as function of the friction factor f and volume flowrate Q in gal/min. (Use 2 significant digits on coefficients. Do not enter units as a part of your response.)