- Based on 2025 AB commercial driver's licence manual
- Updated for January 2025
AB Air Brake Test 8
Alberta's landscapes can be as diverse as they are beautiful. From the open plains to bustling urban centers like Calgary, a commercial driver needs to be prepared. Test 8 is designed to deepen your understanding of air brake systems. This 50-question practice test will help you get there. Keep in mind; Alberta's road conditions can change rapidly, especially during winter. This 2025 updated practice test is all about making sure you're prepared, based on the Alberta commercial driver's manual.
- Perfect for first-time and renewal commercial applicants, and those adding endorsements
- Triple-checked for accuracy
This test is a Premium member exclusive. You'll get
What you need to know
Verified by Steven Litvintchouk, M.S., Chief Educational Researcher, Member of ACES. See our detailed commitment to accuracy and quality in our practice tests.
Ensuring the accuracy and quality of our program is paramount. Learn more about our rigorous standards in our Commitment to Accuracy article.
What to expect on the official exam
50
questions
40
correct answers to pass
80
passing score
Our 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.
Written by Andrei Zakhareuski Updated over a week ago
At Tests.ca, we understand the importance of reliable and accurate practice tests to help you prepare for your driver's knowledge 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 Driving Handbooks:
Every question we develop is based on the most recent version of each province's official driving manual. Our team regularly monitors each province's official 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 provincial government 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 government 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 driver's knowledge exam.
More resources
Are you in another province?
List of questions (classic view)
- Polarized gladhands on a tractor
- ln vehicles with three dash-mounted push-pull valve buttons, how are the valve buttons usually coloured?
- If a vehicle lacks brake stroke indicators, what must be done?
- Adjusting the manual slack adjusters incorrectly can result in what outcome?
- While adjusting the manual slack adjusters, how can you confirm the right wrench rotation?
- Which statement is not true when it comes to safely operating a 'bobtailed' tractor?
- What is the ideal re-adjustment specification for slack adjusters?
- Which of the following will not aid drivers in braking smoothly?
- When braking with a 'bobtailed' tractor, where does the weight shift toward?
- If the slack adjuster has a square adjusting bolt, what type of wrench is required?
- Why should the rotors of air disc brakes be regularly inspected?
- The term 'bobtailing' refers to what kind of operation?
- How much adjustment is involved with slack adjusters other than the Meritor?
- If S-cam brakes are correctly adjusted and applied, which statement is false?
- Which statement is incorrect when brakes are adjusted improperly?
- Upon preparing the vehicle for examining the brake adjustment, what should be the air pressure range?
- When should automatic slack adjusters be adjusted?
- What role do auxiliary retarders play in vehicle operation?
- What wrench type is necessary for a slack adjuster with a hexagonal adjuster?
- Automatic slack adjusters use which of the following methods to automatically adjust pushrod stroke?
- With the free stroke measurement method, pushrod travel on a typical Type 30 brake chamber should not exceed
- When you're measuring pushrod stroke with the applied stroke methodology, which statement is false?
- On all automatic slack adjusters, the brake system is adjusted accurately if…
- What's the function of a brake drum?
- In essence, what is the function of engine retarders?
- By what trait are Meritor slack adjusters identifiable?
- With the S-cam brakes incorrectly regulated and applied, which assertion is false?
- To what extent should one back off when regulating manual slack adjusters?
- When adjusting manual slack adjusters, how deeply does the locking sleeve need to be pressed?
- What potential issue may arise while applying brakes on combination vehicles?
- What condition is signified by a consistent ABS dashboard light?
- At which point do air brakes produce the maximum continuous heat?
- What is the primary cause of nearly all brake failures and runaway crashes?
- Pertaining to ABS, which statement is not correct?
- When utilizing tire chains, what is discouraged?
- If the brakes of an empty semi-trailer receive the same amount of application air pressure as the tractor's drive wheel brakes, what can occur?
- What is the largest challenge for combination units that results in loss of brake balance?
- To brake safely with ABS, which action should be avoided?
- When should the driver examine the ABS light on the trailer?
- What is the function of Automatic Traction Control (ATC)?
- What does an Electric Driveline Retarder do?
- When descending unfamiliar slopes, which claim is untrue?
- What do exhaust retarders essentially achieve?
- ABS brakes equipped trailers have an ABS warning light. Where is this light positioned?
- When are auxiliary retarders most effective?
- If the vehicle's speed increases on a downhill slope, what should you avoid doing?
- If you come across a significant amount of water on the road, what should you avoid doing?
- What does a blinking ABS dashboard light represent?
- While braking on frozen roads, what action is not advised?
- What is the function of ABS brakes?
- What is another term for a jackknife incident?
- What adverse effect can water in the brake drums result in?