A compressed air system consists of a compressor and receiver, 1500 ft (458 m) of 4-in....

    

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A compressed air system consists of a compressor and receiver, 1500 ft (458 m) of 4-in. (10.2-cm) pipe, two gate valves, six standard elbows, and a manifold. Four rock drills requiring 200 cu ft/min (5.7 m'/min) each are con- nected to the manifold by 1-4-in. (3.2-cm) hoses 100 ft (30.5 m) long. Pressure drop in the manifold is 3 psig (20 kPa) and line leakage is 5%. Determine the pressure at the drill when all four drills are operating simultane- ously and receiver pressure is 100 psig (690 kPa). A compressed air system consists of a compressor and receiver, 1500 ft (458 m) of 4-in. (10.2-cm) pipe, two gate valves, six standard elbows, and a manifold. Four rock drills requiring 200 cu ft/min (5.7 m'/min) each are con- nected to the manifold by 1-4-in. (3.2-cm) hoses 100 ft (30.5 m) long. Pressure drop in the manifold is 3 psig (20 kPa) and line leakage is 5%. Determine the pressure at the drill when all four drills are operating simultane- ously and receiver pressure is 100 psig (690 kPa).

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Given that L1500 Two gate valve a l1oft 2x 10 220 PE Six Standord elb... View the full answer