Alberta Commercial Drivers License Air Brakes Practice Test 4

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Created by Commercial Driver HQ

Alberta Air Brakes Practice Test 4

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

1 / 20

System air loss should be measured by applying the brake for how long?

2 / 20

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

3 / 20

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

4 / 20

Before inspecting for air brake chamber leaks, you must __________.

5 / 20

What is the best way to inspect an air compressor?

6 / 20

Where is the brake lining fastened?

7 / 20

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

8 / 20

When you are testing your spring brakes, the test is considered a success when?

9 / 20

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

10 / 20

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

11 / 20

If brake chambers on opposite side of an axle are different sizes, this may cause?

12 / 20

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

13 / 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?

14 / 20

When brakes become overheated they also become?

15 / 20

When inspecting your brakes, you must?

16 / 20

To make sure the air tanks are securely attached to the vehicle you should?

17 / 20

When can you adjust your own air brakes?

18 / 20

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

19 / 20

The supply tank should discharge more moisture than any other tank?

20 / 20

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

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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.