HEAVY TRUCK BRAKES MICHIGAN MECHANIC STUDY GUIDE | Questions and Correct Answers | Latest Update 2024/2025 | 100% PASS
HEAVY TRUCK BRAKES MICHIGAN MECHANIC STUDY GUIDE | Questions and Correct Answers | Latest Update 2024/2025 | 100% PASS AN ENGINE BRAKE (JACOBS BRAKE) - 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 COMPRESSED AIR. (CORRECT AWNSER) IN THE SYSTEM SHOWN BELOW, THE PART AT C IS: - Answer -A. AN INVERSION VALVE. (POSSIBLE CORRECT AWNSER) B. A SAFETY VALVE. C. A MODULATOR VALVE. (NOT CORRECT AWNSER) D. A RELAY VALVE.A MECHANIC HAS REMOVED A BRAKE DRUM AND FOUND THE BRAKE LININGS SOAKED WITH GREASE. THE BRAKE LININGS SHOULD BE: - Answer -A. REPLACED. (CORRECT AWNSER) B. SANDED TO ROUGHEN UP THE FRICTION SURFAC
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