British Columbia Commercial Drivers License Air Brakes Practice Test 5

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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

British Columbia Air Brakes Practice Test 5

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

1 / 20

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

2 / 20

Where are the air brake chambers located?

3 / 20

Spring brake controls are usually what color?

4 / 20

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

5 / 20

Finding a small bit of oil during an inspection is no cause for concern if its coming from the _____________?

6 / 20

What is not a factor in how well your air brake system works?

7 / 20

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

8 / 20

Cut in pressure level must never fall below __________.

9 / 20

The pushrod stroke occurs when compressed air enters the?

10 / 20

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

11 / 20

Cut out pressure level must never exceed __________.

12 / 20

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

13 / 20

What is a "glad hand"?

14 / 20

Which colour usually means the air line is a service line?

15 / 20

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

16 / 20

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

17 / 20

Activation of trailer spring brakes can be checked by?

18 / 20

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

19 / 20

The spring brake is designed for which situation?

20 / 20

What does a governor do in an 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.