Newfoundland Commercial Drivers License Air Brakes Practice Test 3

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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

Newfoundland Air Brakes Practice Test 3

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

1 / 20

Cut in pressure level must never fall below __________.

2 / 20

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

3 / 20

Spring brake controls are usually what color?

4 / 20

Most air brake systems will use automatic valves to?

5 / 20

Where are the vehicles air tanks located?

6 / 20

Activation of trailer spring brakes can be checked by?

7 / 20

Why are their two service tanks?

8 / 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?

9 / 20

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

10 / 20

A vehicle should have wheel chocks or blocks securing it in place during inspection if...?

11 / 20

What is the service brake used for?

12 / 20

Which of these significantly decreases the brake force produced at the wheel?

13 / 20

What should you do when the air brakes low pressure warning comes on?

14 / 20

What is the "cut-out" level?

15 / 20

When inspecting your brakes, you must?

16 / 20

Th design of the wedge brake system allows them to?

17 / 20

What does a governor do in an air brake system?

18 / 20

You should be looking for this when checking your brake chambers?

19 / 20

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

20 / 20

Who can perform adjustments and maintenance on your air brake system?

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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.