New Brunswick Commercial Drivers License Class 3 Practice Test 5

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.

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Created by Commercial Driver HQ

New Brunswick Class 3 Practice Test 5

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

1 / 20

Your truck or other commercial vehicle must be have?

2 / 20

What is the gross weight of your vehicle?

3 / 20

Don't use the differential lock when __________?

4 / 20

What does this sign tell you about the road ahead?

5 / 20

What is the wheel base of a vehicle?

6 / 20

What does this construction sign mean?

7 / 20

As an operator you are required to have vehicles and trailers inspected how often?

8 / 20

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

9 / 20

What is the first thing to look at when inspecting an air brake system?

10 / 20

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

11 / 20

You test a tractor protection valve by removing the service line and?

12 / 20

When is a pre-trip inspection required?

13 / 20

What is the "cut in" level?

14 / 20

How do you define Gross Weight?

15 / 20

What does this sign mean?

16 / 20

What does this sign mean?

17 / 20

What does this yellow diamond sign mean?

18 / 20

A broken yellow line on the pavement to the left of you means what?

19 / 20

What happens to the air valve when you press down the brake?

20 / 20

What is the most frequent reason a vehicle is removed from service?

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The average score is 84%


Want to know more? Learn all about getting your Class 3 drivers license in New Brunswick

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.