Class 4 Knowledge Test · Theory

Alberta Class 4 practice test: taxi, Uber and ambulance

Practice questions on inspections, passengers, collisions and the National Safety Code, written from the Alberta Commercial Driver's Guide and explained one by one. Test yourself with a 30 question mock test.

Take the practice test

10 practice questions from the question catalog. How many can you get right?

Question 1 of 10
1Traffic is following your bus as a stop approaches. What does the guide call the safest place for that traffic?

Exactly one answer is correct.

2Before picking up passengers in a bus or taxi, what should you make sure of regarding fuel?

Exactly one answer is correct.

3During a low speed turn in the city, what do the rear tires of a large vehicle do?

Exactly one answer is correct.

4Compared with a level road at the same speed, how does a downhill grade affect stopping distance?

Exactly one answer is correct.

5In Alberta, a bus is defined as a commercial vehicle designed to carry how many persons?

Exactly one answer is correct.

6During your inspection you find a defect that would jeopardize the safety of your passengers. What must you do?

Exactly one answer is correct.

7The yellow lights on this sign are flashing as you approach in your bus. What is required?

Exactly one answer is correct.

8How long after the manufacture date do all fire extinguishers expire?

Exactly one answer is correct.

9You pass this sign at 9:00 a.m. on a school day. No other times are posted. What applies?
MAXIMUM30

Exactly one answer is correct.

10A passenger travels with a pet or service animal. What does the Traffic Safety Act require of the driver?

Exactly one answer is correct.

How the Class 4 knowledge test works

You need a Class 4 licence to drive a taxi, a limousine or a ride for hire vehicle such as Uber, an ambulance, or a bus with up to 24 passengers. You must be at least 18, hold a full Class 5 licence and hand in a medical report.

The knowledge test at a registry agent office has 30 multiple choice questions. You pass with at least 25 correct answers, and the test stops as soon as you get six wrong.

Questions come from the whole Commercial Driver's Guide and from the Driver's Guide for cars and light trucks. Practise the commercial part here and the general rules of the road in our Class 7 trainer.

The topics of the test

The 276 questions in the catalog are spread across these areas. In the trainer you practice all of them until every area sticks.

  • Commercial Licences and Medical Fitness32 questions
  • National Safety Code, Hours and Daily Log32 questions
  • Trip Inspections32 questions
  • Stopping Distance, Mirrors and Fatigue32 questions
  • Turns, Reversing and Railway Crossings30 questions
  • Taxis, Ambulances and Ride for Hire30 questions
  • Transporting Passengers28 questions
  • Emergencies, Collisions and Fuelling28 questions
  • Road Signs and Signals32 questions

How many questions can you get right?

10 practice questions, free and without signing up. At the end you see whether it would already be enough for the test.

How you learn with us

No rote memorizing from start to finish. The trainer remembers what you know and practices exactly the rest with you.

  1. Take the practice test

    10 practice questions, free. Afterwards you know where you stand.

  2. All questions with solutions

    The complete catalog with 276 questions, each with the correct answer.

  3. Tests that adapt to you

    Every round puts the questions together anew. Whatever you got wrong comes back until it sticks.

  4. Pass or get your money back

    If you fail despite practicing, you get your last payment back.

Full access

All questions and answers in the online trainer

Everything you need for the knowledge test in one place. No book, no class, on your phone or computer.

  • 276 questionsAll with solutions
  • 30 in 30 minutesLike in the real test
  • 9 topic areasPractice targeted, one by one

The complete question catalog

All 276 questions that could come up, each with the correct answer. You learn exactly what gets asked.

For every question you see how often others get it wrong and which answer they mix it up with. That way you spot the traps.

Test simulation like the real thing

30 questions, 30 minutes, graded like the real test: at least 25 correct answers out of 30.

Every round is shuffled anew. Afterwards you see right away whether you would have passed and what is still missing.

Practice that adapts to you

The trainer remembers what you already know. Wrong answers come back until they stick, and a question only counts as learned once you have answered it correctly several times with time in between.

You can also practice individual topics or just your weak spots.

Your plan until the test

Enter your test date and the trainer spreads the questions across the remaining days. That way a small round waits for you every day instead of cramming everything the last evening.

Your progress shows you at any time when you are ready for the test.

Short videos to swipe New

Learn like on Instagram or TikTok: Every question comes as a short video, you tap your answer and swipe to the next one. Whatever you got wrong shows up more often.

Ideal for in between, on the train or on a break.

Pricing

Both options include all questions and answers and all trainer features. You only decide whether you pay weekly or once.

Weekly pass

$7.99 CADper week

  • All 276 questions and answers
  • All trainer features
  • Cancel anytime
Start practicing now
No subscription

Permanent access

$39.99 CADone-time

  • All 276 questions and answers
  • All trainer features
  • Pay once, no subscription
Get permanent access

Our money-back guarantee applies to both options.

Money-
back
guarantee

Our money-back guarantee

We are confident that you will pass with the trainer. If not, we refund the last payment of your subscription, or the full price for a one-time purchase.

It is that simple: Within 30 days after the test, send us a short email at [email protected] with proof, for example a photo of your test result. No follow-up questions, no form. The exact conditions are in the terms and conditions.

Frequently asked questions

How many questions are on the Class 4 knowledge test?

30 multiple choice questions. You need at least 25 correct answers, the test stops after six wrong answers.

Do I need a Class 4 licence to drive for Uber in Alberta?

Yes. In Alberta, driving a taxi, a limousine or a ride for hire vehicle needs a Class 4 licence, and so does driving an ambulance or a bus with up to 24 passengers.

Are these the real test questions?

No. Alberta does not publish the test questions. All questions here are our own, written from the Alberta Commercial Driver's Guide.

Is there a road test for Class 4?

No. Since February 1, 2023, you do not need a road test for an Alberta Class 4 licence. You pass the knowledge test, meet the vision standard and hand in a driver medical report.

Is the Class 7 trainer included?

No. The Class 4 trainer covers the Commercial Driver's Guide. The general rules of the road from the Driver's Guide are in our Class 7 trainer, which you unlock separately.