Heavy duty truck system Study guides, Class notes & Summaries

HEAVY DUTY TRUCK SYSTEM CHAPTER 31 TEST LATEST UPDATE...

Which of the following is the best practice when instructed to block the wheels on a tractor/trailer combination? Place a pair of wedged wheel chocks on one tractor drive axle and one trailer axle wheel. What is the required amount of slack adjuster free travel on a properly adjusted, manual S-cam brake? 3/8 to 5/8 inch Which of the following foundation brake components are lubricated with chassis grease, either for component life or as part of a lube job? S-cam bushings ...

HEAVY DUTY TRUCK SYSTEM CHAPTER 27 EXAM LATEST UPDATE...

HEAVY DUTY TRUCK SYSTEM CHAPTER 22 EXAM LATEST UPDATE...

HEAVY DUTY TRUCK SYSTEM CHAPTER 25 EXAM 2024....

Which of the following air brake system components functions as a lever? the slack adjuster Which of the following components sets the system cut-in and cut-out pressures? the governor What is the function of a system safety pop-off valve? It relieves pressure from the supply tank in the event of governor cut-out failure. The function of the foot valve or dual-circuit application valve is to: meter air to the service brake circuit The potential energy of an air br...

2024 HEAVY DUTY TRUCK SYSTEMS - CHAPTER 28 EXAM ...

In hydraulic disc brakes, the pads are forced against the rotors by: the pistons As the pressure of fluid received by the wheel cylinder of a drum brake system increases, which of the following happens? The wheel cylinder cups and pistons are forced apart Which of the following safety devices delays application of front disc brakes in a disc/drum system until pressure is built up in the hydraulic system? a metering valve In a typical air-over-hydraulic brake system, -depr...

HEAVY DUTY TRUCK SYSTEM CHAPTER 26 TEST LATEST UPDATE...

HEAVY DUTY TRUCK SYSTEM CHAPTER 15 EXAM LATEST UPDATE...