3 Questions
What is the correct procedure to test the Low Air Warning system in a truck?
Start the truck, ensure the air pressure is above 90 psi, pump the brakes until the low air warning comes on at a specific PSI, and then inform the examiner
How do you test the Slow Air Pressure Buildup in a truck?
Pull out the trailer air supply, reduce air pressure to 80 PSI, inform the examiner that the RPMs are between 600 and 900, time the air pressure buildup from 85 to 100 PSI, and then inform the examiner
What is the correct way to test the Tractor Protection System in a truck?
Ensure the trailer air supply button is pulled out, exit the truck, pull out the service line, get back in the truck, and keep the window open and do a full break application for 5 seconds and listen to if air leaks, if it does the truck is defected
Test your knowledge of air brake systems with this quiz on exterior inspections. Learn about low air warning activation, air pressure requirements, and more.
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