Exam (elaborations)
HEAVY TRUCK BRAKES MICHIGAN MECHANIC STUDY QUESTIONS & ANSWERS
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An engine brake (jacobs brake) - correct answer 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 compr...
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