Engineering, 03.09.2019 18:30 babycakesmani

Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within an inch of the tailpipe moith. technician a say if the paper is vibrating due to a puffing output from the tailpipe, this signals a smoothly running engine. technician b says that if the paper is being draw toward the tailpipe, this could indicate burned exhaust valves. who is correct

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Two technicians are discussing how to test a car's exhaust by holding a small piece of paper within...