Free Connecticut CDL Air Brakes Test 2024

Your knowledge of air brakes will be tested by answering 30 multiple-choice questions that will allow you to get a less restricted CDL for driving with air brakes and to help you become a safer driver today. These questions, which each include a hint and explanation, are carefully written based on the Connecticut Commercial Driver’s Manual and local laws. Review each question and explanation carefully so that you will be fully prepared for the DMV air brake exam, and so that you understand the workings of your vehicle’s air brakes, which will help you become a safe driver. Good luck on your upcoming exam and drive safely!

Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
Triple-checked for accuracy

What you need to know

9 min to complete

Available in EN and ES

Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.

What to expect on the actual CT DMV exam

questions

correct answers to pass

80%

passing score

Helpful links

CT DMV website

List of questions (classic view)

How would you check your truck's slack adjusters?
After the initial pressure drop, the maximum acceptable leakage rates per minute are
Which of the following is NOT part of the braking process when you're driving a tractor-trailer with an antilock braking system (ABS)?
The purpose of a supply pressure gauge is
Which vehicles must have low air pressure warning signals?
Which of the following can cause brakes to fade or fail?
If the air tanks are not drained,
When should you use the parking brake?
Which of the following are true about a dual air brake system?
Why must you pass a knowledge test on air brakes?
When should you drain your air tanks?
Under which conditions are front wheel brakes good to use?
How do brakes work on a long, steep downgrade?
Which of the following should you do before leaving your vehicle unattended?
The tractor protection valve
Which of the following will be true about your brake function if your antilock braking system (ABS) fails?
Which of the following is NOT part of the drum brake?
What is the best way to test if your vehicle's spring brakes come on automatically?
An antilock braking system (ABS)
How can you tell if your vehicle is equipped with an antilock braking system (ABS)?
Spring brakes are
Slack adjusters are
At what measurement is the safety valve USUALLY set to open?
Which of the following is NOT part of the air brake system?
What is the best way to test your vehicle's low air pressure warning signal?
The low air pressure warning signal will come on before the pressure in the air tanks falls below
A low pressure warning signal is required on
All vehicles equipped with air brakes have
With air brake-equipped vehicles, the parking brakes should be used
The use of air brakes on a downgrade is only a supplement to the

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Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.

Written by Andrei Zakhareuski Updated over a week ago

At Driving-Tests.org, we understand the importance of reliable and accurate practice tests to help you prepare for your DMV exam. That's why we've developed a meticulous process to create and continually update our practice questions, ensuring they reflect the most current driving laws and regulations.

Here's an inside look at how we maintain the highest quality in our practice tests.

Content Creation and Verification Process

Alignment with Official Manuals:
Every question we develop is based on the most recent version of each state's official driving manual. Our team regularly monitors each state DMV's website for the latest updates to ensure our practice tests are always aligned with the most current information.
Community Feedback Integration:
We leverage feedback from our vast community of users to understand which topics are most frequently tested. This helps us focus on the areas that are most relevant and beneficial for your preparation.
Expert Content Creation:
Our in-house editor, Steven, who has extensive experience in driver education, crafts each question with precision. He conducts a thorough review of each question against the official manuals to ensure accuracy.
Rigorous Review Process:
Once Steven has finalized a set of questions, our team conducts a joint review session. This second level of scrutiny involves content accuracy, proofreading, and fact-checking to eliminate any errors.
User Feedback Mechanism:
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