©JOSHCLAY 2024/2025. YEAR PUBLISHED, 2024.
CDL Air Brakes Endorsement Exam
Questions and Answers 100% Solved
To check the slack adjusters on S cam brakes, you should: - ✔✔Wear
gloves and pull hard on each slack adjuster.
To test the low pressure warning signal, you should (3): - ✔✔* Shut the
engine off
* Turn the electrical power on
* Step on and off the brake pedal to reduce air pressure.
With dual air systems, the air pressure should build: - ✔✔From 85 to 100
psi in 45 seconds.
With single air systems, the air pressure should build: - ✔✔From 50 to
90 psi in 3 minutes.
To test air leakage rate you should: - ✔✔Turn off the engine and release
the service brake.
To check the air compressor governor "cut in" and "cut out" pressures (3): -
✔✔* Run the engine at a fast idle
* Pump the brake to reduce tank pressure
CDL Air Brakes Endorsement Exam
Questions and Answers 100% Solved
To check the slack adjusters on S cam brakes, you should: - ✔✔Wear
gloves and pull hard on each slack adjuster.
To test the low pressure warning signal, you should (3): - ✔✔* Shut the
engine off
* Turn the electrical power on
* Step on and off the brake pedal to reduce air pressure.
With dual air systems, the air pressure should build: - ✔✔From 85 to 100
psi in 45 seconds.
With single air systems, the air pressure should build: - ✔✔From 50 to
90 psi in 3 minutes.
To test air leakage rate you should: - ✔✔Turn off the engine and release
the service brake.
To check the air compressor governor "cut in" and "cut out" pressures (3): -
✔✔* Run the engine at a fast idle
* Pump the brake to reduce tank pressure
