AIR BRAKES EXAM QUESTIONS | TESTED AND
PROVEN ANSWERS | LATEST UPDATE 2024/2025
100% (GRADE A+)
Your vehicles single brake system need adjustment if....
Ans>> The compressor cuts out between 70 to 90 psi
In air brake vehicles, the parking brakes should be used:
Ans>> Whenever the vehicle is parked.
All vehicles with air brakes are required to have low pressure warning signals. This could be.....
Ans>> A wig wag, red light or a buzzer
T0 check the air compressor governor "cut in" and "cut out" pressures...
Ans>> Monitor the air pressure gauge, run the engine at fast idle and step on and off the brake
to reduce tank pressure
To check the slack adjusters on S Cam brakes, you should...
Ans>> Wear gloves and pull hard on each slack adjuster
1
, When the low pressure warning is activated, you should...
Ans>> Bring the vehicle to a safe stop while you still control the brakes
You should know that your brakes are fading when...
Ans>> You have to push harder on the brake pedal to control your speed on a downgrade
To test the air leakage rate you should....
Ans>> Turn off the engine and release the service brake
The governor allows the air to start pumping again when it reaches the cut in level, or around...
Ans>> 100 psi
The driver must be able to see a warning that is given before air pressure in the service air tanks
falls below:
Ans>> 60 psi
2
PROVEN ANSWERS | LATEST UPDATE 2024/2025
100% (GRADE A+)
Your vehicles single brake system need adjustment if....
Ans>> The compressor cuts out between 70 to 90 psi
In air brake vehicles, the parking brakes should be used:
Ans>> Whenever the vehicle is parked.
All vehicles with air brakes are required to have low pressure warning signals. This could be.....
Ans>> A wig wag, red light or a buzzer
T0 check the air compressor governor "cut in" and "cut out" pressures...
Ans>> Monitor the air pressure gauge, run the engine at fast idle and step on and off the brake
to reduce tank pressure
To check the slack adjusters on S Cam brakes, you should...
Ans>> Wear gloves and pull hard on each slack adjuster
1
, When the low pressure warning is activated, you should...
Ans>> Bring the vehicle to a safe stop while you still control the brakes
You should know that your brakes are fading when...
Ans>> You have to push harder on the brake pedal to control your speed on a downgrade
To test the air leakage rate you should....
Ans>> Turn off the engine and release the service brake
The governor allows the air to start pumping again when it reaches the cut in level, or around...
Ans>> 100 psi
The driver must be able to see a warning that is given before air pressure in the service air tanks
falls below:
Ans>> 60 psi
2
