Saskatchewan Class 4 Licence Test 6

Perfect for first-time and renewal commercial applicants, and those adding endorsements
Based on 2024 SK commercial driver's licence manual
Triple-checked for accuracy
Updated for December 2024

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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 2024 SK commercial driver's manual. Good luck and drive safely!

What to expect on the official exam

questions

correct answers to pass

passing score

Helpful links

SK Motor Vehicle Department website

Official Saskatchewan commercial driver's manual (2024)

More resources

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?