Georgia Commercial Driver License Air
Brakes Test Questions with Complete
Solutions (Latest 2025)
A parking or emergency brake on a heavy vehicle can only be
held in position by something that cannot leak away. An
example would be: - Correct Answers ✅Spring pressure
A straight truck or bus air brake system should not leak at a
lower rate of more than how many psi per minute with the
engine off and the break released? - Correct Answers ✅2
psi per minute.
The air rate loss for a straight truck or bus with the engine off
and the brakes on should NOT be more than: - Correct
Answers ✅3 psi in one minute.
Your vehicle has a dual air brake system. The low air pressure
warming signal comes on for the secondary system. What
should you do? - Correct Answers ✅Bring the vehicle to a
safe stopping continue only when the system has been fixed.
If your vehicle has an alcohol evaporate or, why is it there? -
Correct Answers ✅To reduce the risk of ice in air brake
valves in cold weather.
Air braking Teague's more time than hydraulic braking
because: - Correct Answers ✅Eric takes more time to flow
through the lines then hydraulic fluid.
, Georgia Commercial Driver License Air
Brakes Test Questions with Complete
Solutions (Latest 2025)
Total stopping distance for air brakes is longer than 4
hydraulic brakes due to ___________ distance. - Correct
Answers ✅Break lag
The brake pedal is an air brake system: - Correct Answers
✅That controls the air pressure applied to put on the brakes.
If your truck or bus had dual parking control vows, you use
pressure from a separate tank for what purpose? - Correct
Answers ✅To release the Spring emergency/ parking brake
to move a short distance.
Modern air brake systems combine 3 different systems. They
are the service brake system, the parking brake system and
what other system? - Correct Answers ✅Emergency brake
system
To check the free play of manual flak adjusters on s-cam
breaks you should: - Correct Answers ✅Park on level
ground, c*** the wheels and turn off parking brake.
Which of these is the 1st thing you should do when a low air
pressure warning comes on? - Correct Answers ✅Stop and
safely park as soon as possible.
Brakes Test Questions with Complete
Solutions (Latest 2025)
A parking or emergency brake on a heavy vehicle can only be
held in position by something that cannot leak away. An
example would be: - Correct Answers ✅Spring pressure
A straight truck or bus air brake system should not leak at a
lower rate of more than how many psi per minute with the
engine off and the break released? - Correct Answers ✅2
psi per minute.
The air rate loss for a straight truck or bus with the engine off
and the brakes on should NOT be more than: - Correct
Answers ✅3 psi in one minute.
Your vehicle has a dual air brake system. The low air pressure
warming signal comes on for the secondary system. What
should you do? - Correct Answers ✅Bring the vehicle to a
safe stopping continue only when the system has been fixed.
If your vehicle has an alcohol evaporate or, why is it there? -
Correct Answers ✅To reduce the risk of ice in air brake
valves in cold weather.
Air braking Teague's more time than hydraulic braking
because: - Correct Answers ✅Eric takes more time to flow
through the lines then hydraulic fluid.
, Georgia Commercial Driver License Air
Brakes Test Questions with Complete
Solutions (Latest 2025)
Total stopping distance for air brakes is longer than 4
hydraulic brakes due to ___________ distance. - Correct
Answers ✅Break lag
The brake pedal is an air brake system: - Correct Answers
✅That controls the air pressure applied to put on the brakes.
If your truck or bus had dual parking control vows, you use
pressure from a separate tank for what purpose? - Correct
Answers ✅To release the Spring emergency/ parking brake
to move a short distance.
Modern air brake systems combine 3 different systems. They
are the service brake system, the parking brake system and
what other system? - Correct Answers ✅Emergency brake
system
To check the free play of manual flak adjusters on s-cam
breaks you should: - Correct Answers ✅Park on level
ground, c*** the wheels and turn off parking brake.
Which of these is the 1st thing you should do when a low air
pressure warning comes on? - Correct Answers ✅Stop and
safely park as soon as possible.
