Free Connecticut CDL Air Brakes Practice Test 2022

Do you need an Air Brakes endorsement or an L endorsement for your commercial driving license? The CDL Air Brake 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 questions are relevant, all of our Connecticut CDL Practice test questions are based on the CT 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 free CDL Practice Test to get ready to pass the Connecticut CDL Air Brake Test now. 

Our CDL practice tests:
Based on 2022 CT commercial driver's license manual
Full answers + detailed explanations
Perfect for first-time, renewal applicants
CT CDL Air Brakes Test format:
25 questions
20 correct answers to pass
80% passing score
List of questions
1.
The reduced stopping power caused by overuse of the service brakes and excessive heat is called:
2.
Air tanks need to be drained ______.
3.
At 55 mph on dry pavement, the air brake lag distance is how many feet?
4.
On a long or steep downgrade, the foot brakes should be used:
5.
What negatively affects the braking power of a spring brake?
6.
When the air system is low ________.
7.
When increased application pressure to maintain the same speed becomes necessary, you should ______.
8.
When you need to apply more pressure to help your brakes work normally effectively, this means that your brakes are fading. Which of the following can cause fading brakes?
9.
The parking brake knob is usually:
10.
The parking brake should not be used when wet in freezing temperatures, or:
11.
The trailer air supply knob is usually:
12.
Which of the following helps the stop light switch work?
13.
Stop light switches are necessary because ________.
14.
Stab braking should only be used:
15.
Brake drums or discs _______.
16.
If the air compressor has its own oil supply you should do what before driving?
17.
During a normal drive, the spring brakes are held back by _____.
18.
How often should alcohol containers be checked during cold weather?
19.
The parking brake should be used:
20.
Vehicles with ABS have malfunction lamps that are what color?
21.
Manual air tank drains require:
22.
On a long or steep downgrade, how should vehicle speed be primarily controlled?
23.
What is an alternative name for a brake pedal?
24.
The warning light and buzzer will come on when the air pressure in either system drops below what psi?
25.
Water and oil _______.