New Brunswick Commercial Drivers License Air Brakes Practice Test 1

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.

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Created by Commercial Driver HQ

New Brunswick Air Brakes Practice Test 1

A 20 question practice test to help prepare you for your air brakes knowledge test in New Brunswick

1 / 20

Where are the vehicles air tanks located?

2 / 20

Most air brake systems will use automatic valves to?

3 / 20

How long should it take for the air pressure to rise from 587kPa to 690 kPa after the pressure had fallen below 552 kPa?

4 / 20

If the outer layer of an airline is damaged, but the inner layer is ok, what should you do?

5 / 20

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

6 / 20

Why are their two service tanks?

7 / 20

Any commercial vehicle with air brakes must not lose system pressure with the brakes applied at a rate of more than?

8 / 20

When you are going twice the speed, your brakes will need to work ________ time harder to stop your vehicle.

9 / 20

Where are the air brake chambers located?

10 / 20

When inspecting your brakes, you must?

11 / 20

Test the low pressure alarm with the air pressure above __________.

12 / 20

Which type of trailer can be towed before the service tanks are full?

13 / 20

What is an ABS system?

14 / 20

To measure the time it takes to build up pressure in the air system, the engine should be idling between _______________.

15 / 20

Spring brake controls are usually what color?

16 / 20

How much air loss is allowed for a tractor and a trailer when the brakes are engaged?

17 / 20

A commercial vehicle with air brakes engaged must not lose air pressure faster than?

18 / 20

Correct belt tension for an air compressor can be determined by

19 / 20

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

20 / 20

It is important to me to be home at a regular time and have a set schedule.

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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.