Alberta Class 4 Licence Test 12

If you're planning to drive a small bus/school bus (up to 24 passengers), a taxi, or an ambulance in Alberta, you'll need a Class 4 commercial driver's licence. The transportation industry in AB is booming, so now is a great time: Class 4 drivers are in high demand. But in order to drive one or more of those vehicles, you must first learn to drive carefully and safely. So before you can get your Class 4 licence, you must pass both a written and a practical test. The written test (also known as the Alberta Class 4 knowledge exam) has several multiple-choice questions. This 50-question Class 4 practice test is a great way to prepare: all of our questions are based on the official 2025 AB commercial driver's manual. Good luck and drive safely!

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

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questions

correct answers to pass

passing score

Helpful links

AB Driver and Vehicle Services

Official Alberta driver's manual (2025)

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.

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List of questions (classic view)

Why should you use extra caution at railway crossings in rural areas?
You are pulling a trailer equipped with air brakes. How can you tell if you have cross-connected the supply line and the service line?
You are sharing a vehicle with another driver during a trip. The two of you disagree about which defects should be reported. What should you do?
You may be fined as much as _______ for driving a vehicle whose brakes are out of adjustment.
You're approaching an intersection, and you notice that the roadway beyond the intersection is blocked with traffic. What should you do?
You're driving a vehicle equipped with air brakes. If the low air pressure warning signal comes on, what should you do?
You're driving a vehicle equipped with an automatic front-wheel limiting system (ratio valve). If you brake hard during an emergency stop, the air pressure delivered to the front brakes will be approximately _____ of the air pressure to the rear brakes.
Your vehicle's engine will start to lug (strain) if it is operated
A Class 1 driver's licence allows you to drive which of the following?
A Class 2 driver's licence allows you to drive which of the following?
You're driving an ambulance in response to an emergency call. Whenever you exceed the speed limit or drive through stop signals, you must consider which of the following?
A taxi driver must test the brakes on the taxi
Drivers on Cycle 1 must not drive after completing ____ hours of on-duty time in seven consecutive days.
Drivers on Cycle 2 must not drive after completing ____ hours of on-duty time in 14 consecutive days.
During a pre-hill inspection of a vehicle equipped with hydraulic brakes, you should do which of the following?
How are flares, fusees, and reflectors used?
How should you upshift a gasoline-powered vehicle that is not equipped with a governor?
If your passenger vehicle breaks down and you cannot continue the trip, what should you do?
Where can passengers keep their baggage?
While your vehicle is in motion, you should
Who is responsible for making sure that a vehicle's emergency equipment is in working order?
Why are hours of service regulations in place?
Why should you adjust your head restraint so its top is at least level with the top of your head?
Which of the following statements about off-tracking are true?
You're driving a taxi, limousine, ride-hailing (e.g., Uber) vehicle, ambulance or van. Under ideal driving conditions, you should maintain a following distance of at least ________ behind the vehicle ahead.
You're driving on a two-way street when you hear the siren of an approaching emergency vehicle. What must you do?
As air pressure builds during your pre-trip inspection of the air brakes, the low air pressure warning device should deactivate at
After working 120 hours in a 14-day cycle, drivers must take ____ consecutive hours of off-duty time before taking 70 hours of on-duty time.
After you __________, you must take at least eight consecutive hours of off-duty time.
What practices should be avoided while driving?
What is the appropriate protocol for picking up or dropping off passengers?
What's the safest way to handle a phone call while driving?
How can you enhance your alertness at intersections?
What actions should be taken when driving in pedestrian areas?
To avoid a fixed stare, which is focusing on one object for too long, drivers should
When deciding the following distance from the vehicle ahead, consider
Identify the incorrect statement about approaching a crossover with a crossing pedestrian
What does the acronym LPI represent?
Upon encountering a stationary emergency vehicle on a highway, you are required to
Choose the most accurate and correct statement
When is it necessary to visit a collision reporting center after an accident?
How should you react at an intersection when an emergency vehicle is approaching?
Distracted driving as defined in the Highway Traffic Act includes
What does this sign on a vehicle's rear signify?
Define a bike box.
In terms of road safety, what does 'dooring' mean?
The Dutch method instructs individuals exiting a vehicle to
When approaching a halted streetcar with open doors in the center lane while driving in the right lane, you should
As a driver near pedestrians associated with public transit, you must
The maximum penalty for dooring a cyclist is