Exam (elaborations)
Heavy Truck Brakes Michigan Mechanic Updated Exam Questions And Correct Answers
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an engine brake (jacobs brake)a. is a self-energizing servo type. b. is normally used in place of a spring brake. c. restricts the intake port and causes a build up of 30-45 lbs of pressure. d. opens the exhaust valves near the top of the compression stroke to release the compressed air. (corr...
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