- Updated for October 2024
- Based on 2024 WA commercial driver's license manual
Free Washington CDL Air Brakes Test 2024 | WA
Today, you can start preparing for something that will enrich your career and make you stand out in the trucking field in Washington: your air brake qualification. This will broaden your options, and you will be able to drive a much wider range of commercial vehicles. The 30 question multiple-choice format practice exam you are about to take is closely based on the questions featured in the Washington Department of Licensing Commercial Driver Guide, and features necessary safety information about driving and maintaining an air brake vehicle. Read each hint and explanation to gather all of the information we’ve condensed from the driver guide into your practice exam. Study early and practice as often as you need to until you achieve a score that you feel comfortable with. Good luck on your practice exam, your future CDL air brake exam, and you’ll soon be driving safely with air brakes!
- Perfect for first-time and renewal CDL/CLP applicants, and those adding endorsements
- Triple-checked for accuracy
What you need to know
What to expect on the actual WA DOL exam
questions
correct answers to pass
passing score
Helpful links
List of questions (classic view)
- Which of the following will be true about your brake function if your antilock braking system (ABS) fails?
- When should you use the parking brake?
- What is the best way to test your vehicle's low air pressure warning signal?
- How would you check your truck's slack adjusters?
- Which of the following is NOT part of the braking process when you're driving a tractor-trailer combination vehicle with an antilock braking system (ABS)?
- What is the best way to test if your vehicle's spring brakes come on automatically?
- Which of the following is NOT part of the drum brake?
- The purpose of a supply pressure gauge is
- Why must you pass a knowledge test on air brakes?
- Under which conditions are front wheel brakes good?
- Which of the following should you do before leaving your vehicle unattended?
- How can you tell if your vehicle is equipped with an antilock braking system (ABS)?
- An antilock braking system (ABS)
- Which vehicles must have low air pressure warning signals?
- Slack adjusters are
- After the initial drop, the maximum acceptable leakage rates per minute are
- Which of the following can cause brakes to fade or fail?
- Spring brakes are
- If the air tanks are not drained,
- Which of the following is NOT part of the air brake system?
- Which of the following are true about a dual air brake system?
- How do brakes work on a long, steep downgrade?
- When should you drain your air tanks?
- At what measurement is the safety valve USUALLY set to open?
- The tractor protection valve
- 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
- Alabama: Test 1 / Test 2
- Alaska: Test 1 / Test 2
- Arizona: Test 1 / Test 2
- Arkansas: Test 1 / Test 2
- California: Test 1 / Test 2
- Colorado: Test 1 / Test 2
- Connecticut: Test 1 / Test 2
- Delaware: Test 1 / Test 2
- District of Columbia: Test 1 / Test 2
- Florida: Test 1 / Test 2
- Georgia: Test 1 / Test 2
- Hawaii: Test 1 / Test 2
- Idaho: Test 1 / Test 2
- Illinois: Test 1 / Test 2
- Indiana: Test 1 / Test 2
- Iowa: Test 1 / Test 2
- Kansas: Test 1 / Test 2
- Kentucky: Test 1 / Test 2
- Louisiana: Test 1 / Test 2
- Maine: Test 1 / Test 2
- Maryland: Test 1 / Test 2
- Massachusetts: Test 1 / Test 2
- Michigan: Test 1 / Test 2
- Minnesota: Test 1 / Test 2
- Mississippi: Test 1 / Test 2
- Missouri: Test 1 / Test 2
- Montana: Test 1 / Test 2
- Nebraska: Test 1 / Test 2
- Nevada: Test 1 / Test 2
- New Hampshire: Test 1 / Test 2
- New Jersey: Test 1 / Test 2
- New Mexico: Test 1 / Test 2
- New York: Test 1 / Test 2
- North Carolina: Test 1 / Test 2
- North Dakota: Test 1 / Test 2
- Ohio: Test 1 / Test 2
- Oklahoma: Test 1 / Test 2
- Oregon: Test 1 / Test 2
- Pennsylvania: Test 1 / Test 2
- Rhode Island: Test 1 / Test 2
- South Carolina: Test 1 / Test 2
- South Dakota: Test 1 / Test 2
- Tennessee: Test 1 / Test 2
- Texas: Test 1 / Test 2
- Utah: Test 1 / Test 2
- Vermont: Test 1 / Test 2
- Virginia: Test 1 / Test 2
- Washington: Test 1 / Test 2
- West Virginia: Test 1 / Test 2
- Wisconsin: Test 1 / Test 2
- Wyoming: Test 1 / Test 2
Your go-to, trusted source
Experience the Driving-Tests differenceOur commitment to accuracy and quality in our practice tests
Explore our rigorous, multi-tiered verification process that ensures each question mirrors the official manual for unparalleled accuracy.
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:
After a question goes live on our site, we keep the lines of communication open. Each question features a feedback button, inviting users to report any issues or errors. This continuous feedback loop allows us to address and rectify any concerns promptly. - Responsive Updates:
In line with our commitment to accuracy, we quickly update our practice questions to reflect any changes in the DMV manuals. Additionally, we update the free electronic copy of the state's driver's license manuals on our site, typically within a few days after the DMV publishes them.
Our thorough quality control process ensures that you have access to practice tests that are as accurate and up-to-date as possible. We believe in the power of well-prepared drivers and are dedicated to providing you with the best study tools to help you succeed on your DMV exam.
Clear your Challenge Bank?
This will clear your Challenge Bank and delete all questions.
This cannot be undone.