Saskatchewan Class 4 Licence Test 6

If you're planning to drive a small bus/school bus (up to 24 passengers), a taxi, or an ambulance in Saskatchewan, you'll need a Class 4 commercial driver's licence. The transportation industry in SK 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 Saskatchewan 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 SK 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.

What to expect on the official exam

questions

correct answers to pass

passing score

Helpful links

SK Driver and Vehicle Services

Official Saskatchewan 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)

When approaching a narrow bridge from a curve, you should
When approaching an intersection at which you intend to turn, you should
What should you do to prevent a vehicle fire?
When adjusting a manual slack adjuster, how can you tell whether you are turning the adjusting bolt in the correct direction?
When are water-cooled brakes used?
When backing up a large vehicle, you should
When braking, just before you come to a stop, you should
When can a vehicle with just one occupant (the driver) use this lane?
When can you drive side by side with a motorcycle in one lane?
When driving behind a large commercial vehicle, you must make sure that you can see
When driving in fog, you should use
When driving in heavy fog, you should use
When driving in the United States, you may drive no more than ____ hours during your on-duty time.
When driving in the Yukon or Northwest Territories, you can be on duty for no more than ____ hours at a time.
When can you refuse to transport a passenger?
When driving at night, you should do which of the following?
When driving in the Yukon or Northwest Territories, you may drive no more than ____ hours during your on-duty time.
When driving, the holder of a Class 5–GDL (Probationary) licence must not have a blood alcohol concentration greater than
When fuelling a vehicle, you should NOT
When is it especially important to look out for wild animals on the road?
When must you yield the right-of-way to an emergency vehicle that is sounding a siren?
When parking a vehicle with a manual transmission facing uphill, you should always leave the parking brake on and the transmission in
When passing parked cars in a bus, what should you do?
When pulling away from the curb in a bus, you should
When pulling out from an alley, you must
When refuelling a school bus, you must
When refuelling your vehicle, you should
When should the bus driver perform a safety check of the bus?
When should you check the tire pressures?
When transporting persons with disabilities, you should do all of the following EXCEPT
When traveling down a steep hill, you should NOT
When travelling downhill, what can you do to prevent your brakes from overheating?
When travelling slower than the other traffic, you should
When turning left from one two-way street onto another, where should you begin your turn?
When using the applied stroke method to check pushrod stroke, how much pressure should you apply to the service brakes?
When you are following a motorcycle, allow extra space between your vehicle and the motorcycle because
When you are preparing to make a right turn from the right lane, you should shoulder check to the right to make sure
When you encounter a flashing yellow signal at an intersection, what should you do?
When you press down on the clutch in a vehicle with manual transmission, what does it do?
When you see a potential hazard in your danger zone, you should
When you're driving in an urban area, you should scan ahead about
Where are a large vehicle's blind spots?
Where would an air dryer be installed in an air brake system?
Which of the following are advantages of a dual air brake system?
Which of the following are true about a humpback railway crossing?
Which of the following are true about brake fade?
Which of the following can impair your ability to safely operate a vehicle?
Which of the following can impair your driving?
Which of the following can increase the danger of crossing railway tracks?
Which of the following factors determine the sharpness of your large vehicle’s turn?