Alberta Commercial Drivers License Class 3 Practice Test 3

Commercial Driver HQ is a website focused on helping new commercial drivers in all provinces and territories in Canada.

Our FREE practice tests are designed to help you succeed when it comes time to write the real test.

Each license type has 5 tests to help you study and become familiar with the rules and regulations of commercial driving. The tests are not identical to the license test you will need to pass, but the questions are similar to what you will find on the real deal.

Compatible on desktop, mobile, and tablet, you can take these tests anywhere you have internet access.

Take the practice test!

Created by Commercial Driver HQ

Alberta Class 3 Practice Test 3

A 20 question practice test to help prepare you for the Class 3 knowledge test in Alberta

1 / 20

Cut out pressure level must never exceed __________.

2 / 20

What kind of response should you expect from ABS braking systems?

3 / 20

What is the correct use of an ABS system during a braking emergency?

4 / 20

What does this yellow sign mean?

5 / 20

What is this sign for?

6 / 20

What does a driver need to transport dangerous goods?

7 / 20

When can your vehicle be inspected on a highway?

8 / 20

The low air pressure warning device needs to be replaced or adjusted if it does not trigger at a minimum level of?

9 / 20

Which of these vehicle driver’s are exempt from the Hours of Service Regulations?

10 / 20

How many previous days must a drivers log keep track of?

11 / 20

The pushrod stroke occurs when compressed air enters the?

12 / 20

The spring brake is designed for which situation?

13 / 20

What does this directional sign tell you?

14 / 20

Trailer air brake systems must apply a spring brake when the pressure drops below?

15 / 20

At vehicle inspection stations, axles are inspected for?

16 / 20

When is an engine retarder most efficient?

17 / 20

Which tank should be drained first when draining the air tanks on an air brake system?

18 / 20

What does this sign mean?

19 / 20

Who is allowed to refuel a propane hauling truck?

20 / 20

What does this sign mean?

Thanks for taking the practice test!

Enter your info to sign up for our mailing list or click "See Result" to move on.

Your score is

The average score is 80%


Ready to finish earning your license? Walk through your final steps with our guide to obtaining your Class 3 license in Alberta

We do our best to keep the questions current and accurate. The testing centres may change the questions on the knowledge tests at any time. Always be prepared for surprises.

Many of the answers to the questions can be found in the driver hand books or learning materials your province provides.

DISCLAIMER:CDHQ is not affiliated with the provinces or any test centres. These practice tests should not be considered official tests and you are not granted a license for completing them. Our tests are simply a practice tool to help prepare yourself for the real test.