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7. An operator makes one complete cycle per second interval using the hand pump of the figure. Each complete cycle consists of two pump strokes(intake and power). The pump has a l.3-n diameter piston and the load cylinder has a 4-in.-diameter piston. If the average hand force is 30 lb during the power stroke, SG-0.9 a) How much load can be lifted? b) How many cycles are require to lift the load 15 in. assuming no oil leakage? The pump piston has a 2.5-in. stroke. c) What is the output HP assuming 87% efficiency? 8 in 3 in a tn
engineering   Mechanical-Engineering   
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