Alberta Class 4 Practice Test | Free 20 Question Quiz

Alberta Class 4 Driver Licence Practice Test

Prepare for your Alberta Class 4 commercial driver knowledge exam with this
free 20-question practice quiz.
This is an unofficial practice test created to help learners review key concepts before attempting the real exam.
The questions are written in a similar style to the exam and are based on the
2023 Alberta Commercial Driver Guide, but actual exam questions may use different wording or scenarios.

Who this practice test is for:
Taxi drivers, ride-share drivers, ambulance drivers, shuttle drivers, and small bus operators.

Read each question carefully, choose the best answer, and review the explanations at the end.
This practice test is designed to support understanding and safe driving decisions, not to memorize exact exam questions.

No time limit. Take your time and learn at your own pace.

Important: This practice quiz is not affiliated with, endorsed by, or administered by Alberta Transportation.
It is intended solely as a study aid. The real exam may differ in wording, structure, and scenarios.

Help us improve this practice test

This practice test is continuously improved based on real user feedback.
Because online practice tests may phrase questions differently, some answers can appear inconsistent depending on wording or context.

If you found a question unclear, noticed a possible issue, or have a suggestion,
please leave a rating, write a short review, or add a comment below.
We review feedback carefully and use it to improve clarity, explanations, and overall learning value.

1. What pressure should your spare tire be inflated to?

Lower than other tires

The same as your highest pressure tire

Same as rear tires

Same as front tires

2. A yellow hazard marker with stripes slanting down to the left means:

Hazard on the right, pass on the left

One lane bridge

Sharp curve

Visual marker only

3. Your right wheels drop off the pavement. What do you do?

Ease off the gas and gently steer back

Brake hard and steer sharply left

Drive until you find a driveway

Stop on the shoulder first

4. What should you do first during a front tire blowout?

Brake hard

Lift off the accelerator and hold the wheel straight

Steer immediately off the road

Accelerate

5. A broken yellow centre line means:

No passing

Pass anytime

Pass only when safe

Pass during daylight only

6. What can you legally drive with an Alberta Class 4 licence?

Any bus or motorcoach

A motorcycle

An ambulance or taxi

Any air brake vehicle without a Q endorsement

7. Your vehicle has no ABS. How do you stop quickly on slippery roads?

Brake hard and hold

Release the brake and coast

Brake normally

Pump the brakes

8. Snow removal vehicles in Alberta must use:

Flashing green lights

Flashing amber lights

Flashing blue lights

Flashing red lights

9. A bus driver should choose speed based on:

Passenger count

Schedule

Brake condition

Road and weather conditions

10. When an emergency vehicle approaches with lights and siren you must:

Slow to 15 kmh

Keep driving

Pull right and stop

Speed up to get out of the way

11. A diamond symbol for an HOV lane means:

Vehicles with at least 2 people

Trucks only

Buses and ride share only

Requires two passengers excluding the driver

12. What lights should you use when driving in fog?

Parking lights

Low beam headlights

High beams

Parking lights plus high beams

13. Roads are most slippery:

After one hour of rain

After the rain stops

In the first 10 to 15 minutes

Rain does not affect traction

14. When keeping a daily log, you must also carry:

Inspection reports

Shipping or passenger documents

Fuel or accommodation receipts

All of the above

15. Why do hours of service rules exist?

Union rules

More family time

Avoid overtime

Prevent fatigue related crashes

16. A “Share the Road” sign reminds drivers to:

Watch for cyclists

Watch for pedestrians

Watch for farm vehicles

All of the above

17. When operating a school or small bus, you must NOT:

Fuel with passengers inside

Tailgate

Drive with doors open

Do any of these

18. When is a shoulder check NOT needed?

Leaving the curb

Merging

Checking how close a vehicle is behind you

Changing lanes

19. A sign with two cars side by side and a red slash means:

Lane ending

Road too narrow

No carpooling

No passing

20. Total stopping distance is:

Time to stop at a stop sign

Painted stop line

Distance from a light brake tap

Distance from seeing a hazard to full stop

Ready to review your results?

After you submit, you will see your score along with a clear explanation for each question.
The explanations are meant to help you understand the reasoning behind the correct answers and reinforce safe driving decisions.

Tip: Focus on understanding the concepts rather than memorizing exact wording.
Practice tests often phrase questions differently than the real exam.

Help us improve this practice test

This practice test is improved continuously based on real user feedback.
If you noticed a confusing question, unclear wording, or something that could be improved,
your input helps make the quiz more useful for future learners.

Please leave a rating, write a short review, or add a comment below.
We read all feedback carefully and use it to improve clarity and accuracy.