How Many Questions Are on The Air Brakes CDL Test? 2024 Addition

If you’re a car owner, there’s a CDL test you need to know about. It’s the air brakes test, and it’s not as easy as it sounds. There are tons of questions on the exam. But don’t worry – we’re here to help. Please keep reading to learn more about the test and how to prepare for it. Good luck.

The commercial driver’s license (CDL) air brakes test comprises an average of 25-35 questions. Depending on which state you are there could be 50 questions. You must answer 80% of them correctly to pass. The test is taken on a computer at your local DMV office. Read on for some questions, ideas, and tips to pass the exam.

Prossecc of Taking Air Brakes CDL Test

The Air Brake CDL Test is important to becoming a licensed Commercial Driver. Although the test may vary from State-to-State, one can usually take the exam at their local DMV. At the office, inquire about taking the test, and they can provide you with a schedule on when it is offered at the facility. In some states, authorized testing centers are used where applicants must provide their DMV with a valid driver’s license and may need to present their current CDL if already obtained.

Before signing up for the Air Brake CDL Test, ensure you have reviewed in detail all material regarding air brake systems from reliable sources, including online texts and practice tests from third-party vendors, to ensure that you are adequately prepared for success. Also, be aware of any fees associated with taking and passing the exam, as they vary by state. With perseverance, knowledge, and dedication, you will soon be able to feel confident enough in your abilities as an Air Brake certified Commercial Driver.

Some CDL Test Questions Example

Certainly! Here’s an example of a table containing 10 CDL test questions and their corresponding answers:

What should you do if your vehicle starts to hydroplane?Reduce speed and avoid sudden braking or steering movements.
What is the maximum allowable blood alcohol concentration (BAC) for operating a commercial vehicle?0.04% or lower.
What is the proper way to perform a vehicle inspection?Follow the vehicle inspection checklist provided by your company or the state’s requirements.
When should you use the parking brake?Always use the parking brake when parking or leaving your vehicle unattended.
How far ahead should you scan the road while driving?Aim to scan at least 12 to 15 seconds ahead of your vehicle.
What is the purpose of the pre-trip inspection?To ensure your vehicle is safe to operate and identify any potential issues.
What is the minimum tread depth requirement for tires on the front wheels of a commercial vehicle?4/32 of an inch.
What is the proper technique for turning a large vehicle?Make wide turns to ensure clearance for the rear of your vehicle.
How should you approach a railroad crossing?Ensure your vehicle is safe to operate and identify any potential issues.
What is the maximum weight limit for a commercial vehicle operating on interstate highways?80,000 pounds, including cargo and trailer weight.

Please note that these questions are for illustrative purposes only and may not reflect the questions you will encounter in the CDL test. It’s essential to consult the official CDL study guide or your state’s Department of Motor Vehicles (DMV) for accurate and up-to-date information.

Themes Of Test

The first theme focuses on the components necessary to bring together a successful brake system. The second theme covers topics related to both single and dual-air brake systems; some examples may include check valve systems and other emergency shutoff mechanisms.

Understanding the importance of inspecting each component thoroughly is addressed in the third theme while testing for any potential air leaks is key in ensuring overall safety precautions amongst users. All questions within these four themes build upon one another, as proper working knowledge of these areas will prepare individuals to pass their exams with flying colors.

How to Pass the Air Brakes CDL Test?

In most states, passing the air brakes CDL test is essential for obtaining a commercial driver’s license (CDL). The tests vary in difficulty, but learning and understanding the material is key to passing the exam.

Preparation is the most important step when taking any test, especially an important one such as the air brakes CDL test. Before taking the test, studying the material thoroughly and reviewing any notes you may have taken during your classes is important. Additionally, reviewing practice questions can help you become familiar with the questions you may see on the test.

Practicing in a simulated environment, like an online quiz or practice test, is also a good idea. This will give you an idea of how much time you need to spend on each question and how much detail you should provide in your answers. Additionally, practicing in an online quiz will give you a better understanding of the types of questions and allow you to gain more confidence when taking the test.

Finally, arrive at the testing center early and use any available resources, such as study guides or practice tests. This will give you enough time to review and become comfortable with the material before taking the exam.

How Long Does It Take to Get the Air Brakes CDL Test Results?

It usually takes two weeks to get the air brake CDL test results. The Department of Transportation gives the test, usually taken by people applying for a commercial driver’s license. The test consists of multiple-choice questions and covers safety procedures, braking systems, and air brake maintenance.

To obtain a commercial driver’s license with air brake endorsement in Texas, you will be required to take a 25-question test. To pass the test, you must answer at least 20 questions correctly, which is equivalent to getting an 80% score. ake a 25-question test.

Who Needs to Take the Air Brakes CDL Test?

Taking the CDL air brake test is essential for anyone wanting to drive a CMV with air brakes. Those applying for their first commercial driver’s license (CDL) or renewing a current one must take this exam to get the appropriate endorsement. Additionally, those with a CDL but wish to add an endorsement involving air brakes must pass this test before they start driving the associated vehicle. To obtain a TX CDL, one must pass a 25-question air brakes test with a minimum passing score of 80% (20 correct answers).

What if I Fail CDL Test?

If you do not pass the Air Brakes CDL test, your CDL will be issued with a restriction prohibiting you from driving or operating any vehicles with air brakes. If you plan to operate a commercial vehicle with air brakes, it won’t be possible until you successfully pass the test and return to the DMV to remove the restriction. It’s important to note that, while it is difficult not passing the test at first, it is certainly not an impossible situation.

The best way to approach this is by reapplying for the test in the future so that you can obtain a valid license. Although this may require more time and effort, it is ultimately worth your while since having a valid license will open up many more job opportunities and improve road safety. Additionally, if needed, you can take preparatory courses to prepare yourself for success on the day of testing adequately!

Is there a way to retake the air brakes CDL test?

Yes, you can retake the air brakes CDL test for a fee if you fail. If you’re looking to retake the air brakes CDL test, you can do a few things to improve your chances of passing. First, ensure you’ve reviewed all the material and understand the concepts. Secondly, practice as much as possible- many online resources can help you prepare for the test. 

Finally, relax and take your time- rushing through the test will not help you pass. If you follow these tips, you should be able to retake the test and pass with flying colors.

2023 Air Brakes CDL Practice Test (Updated)

How Many Questions Are On The Air Brakes CDL Test [faqs]

What is the air brake test?

An air brake test is a written examination drivers must take to obtain their Commercial Driver’s License (CDL). The test covers knowledge of the operation and maintenance of air brakes and federal and state laws governing their use.

What are the requirements for passing the test?

To pass the air brakes CDL test, you must correctly answer at least 21 out of 25 questions. There are 50 questions on the test, so you must answer at least 42 out of 50 questions correctly to pass. The test is divided into two sections, with 25 questions. To pass the first section of the air brakes CDL test, you must correctly answer at least 21 out of 25 questions. This section covers topics such as how electric brake systems work, Component maintenance, and proper use of air brakes.

What is the cost of the CDL test?

The CDL test cost can vary depending on the state where you take the test. In some states, the fee is as low as $25; in others, it can be as high as $25. The cost of the test may also be affected by whether or not you need to take a skills test in addition to the written exam. In general, however, the CDL test cost should not be a barrier to getting your license.

What are the required skills for the air brake test?

There’s no need to be nervous about the air brake test- after all, it’s just a simple written exam. However, there are a few skills that you’ll need to master in order to pass. First, you’ll need to have a firm understanding of how air brakes work. Second, you’ll need to be able to identify any potential problems with the brakes.


The air brakes CDL test consists of 50 multiple-choice questions, and in order to pass you must answer at least 42 of them correctly. The test cost can vary from state to state, but it should not be a barrier to getting your license. The best way to prepare for the test is by studying the Oklahoma drivers manual and using practice tests.

Rahat Hossain