An exhaust system for a pickup truck is shown in the figure. The weights Wh, Wm, and W₂ of the head-pipe, muffler, and tailpipe are 9, 87, and 41 N, respectively, and act at the indicated points. If the exhaust-pipe hanger at point A is adjusted so that its tensions FA is 69 N, determine the required forces in the hangers at points B, C, and D so that the force-couple system at point O is zero. Why is a zero force-couple system at O desirable? FA FB FC 35° 35° FD WAY B D W = 0.35

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Machining Processes and Machine Tools

Machining is represented as the process in which an excessive amount of substance is eliminated from the particular element in the form of pieces. In machining, cutting tools such as rotary tools, lathe, drill press, grinder, chop saw, welders, and many more are applied to get the desired shape. As compared to other manufacturing processes, machining is precise and versatile.