Free Georgia CDL Air Brakes Practice Test 2023

Do you need an Air Brakes endorsement or an L endorsement for your commercial driving license? The Georgia CDL Air Brake Test has some differences from other endorsements because your license will receive a mark of restriction if you fail the test. So having good preparation before exam day is very necessary. To ensure that our Georgia CDL practice test questions are relevant, all of our practice questions are based on the Georgia CDL manual. Each question has a detailed explanation for you to thoroughly learn the format and the topic. Don't be afraid of having a restriction on your license. Let’s try our CDL practice test to get ready to pass the Georgia CDL Air Brake Test now. 

Our CDL practice tests:
Based on 2021 GA commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
GA CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
If you do not have automatic tank drains, how often should you drain the oil and water from the bottom of compressed air storage tanks?
The driver must be able to see a low air pressure warning which comes on before pressure in the service air tanks fall below ____ psi.
All air brake equipped vehicles have:
At 55 mph on dry pavement, the air brake lag distance is how many feet?
Your truck or bus has a dual air brake system. If a low air pressure warning comes on for only one system, what should you do?
Spring brakes will generally come on at:
Where is the modulating control valve located on some vehicles?
When testing air leakage rates for single vehicles, initial loss rate should be less than:
Another name for the brake pedal is the "foot valve", or:
When does the air compressor governor allow air to start pumping?
If the low air warning comes on while you are driving, you should:
If the spring brakes are on, when should you push the brake pedal?
What must the air pressure be, at minimum, in both parts of a dual air brake system?
If you are driving down a steep downgrade and have reached your safe speed of 40 mph, you would apply the service brake until your speed dropped to ____ mph.
If your vehicle has an alcohol evaporator, every day during cold weather you should:
In order to make contact with the brake drum, the brake pads and linings are pushed outward by the:
Repeatedly partially increasing and pressing the brake pedal may result in:
You should avoid using the parking brake when _______.
The service brake system ________.
What does the air compressor governor control?
What is used to put alcohol into the system and reduce ice risk?
To check the air compressor governor's "cut in" and "cut out" pressures you need to _________.
Air tanks should be drained:
What brake system uses part of the service and parking brake systems to stop the vehicle in the event of a brake system failure?
To avoid damaging the brakes, what should you never do while the spring brakes are applied?