Nova Scotia Commercial Drivers License Air Brakes Practice Test 4

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Created by Commercial Driver HQ

Nova Scotia Air Brakes Practice Test 4

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

1 / 20

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

2 / 20

What is the "cut-out" level?

3 / 20

Which statement is true of spring brakes?

4 / 20

How do you engage the emergency / parking brake on most air brake systems?

5 / 20

When inspecting an air brake system, the person inspecting should wear?

6 / 20

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

7 / 20

Where is the air pressure gauge for the air brake system?

8 / 20

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

9 / 20

Which of these vehicles would usually have an air brake system?

10 / 20

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

11 / 20

What function does the alcohol evaporator perform?

12 / 20

Which can contaminate a brake systems air lines?

13 / 20

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

14 / 20

What might happen if the air lines are cross connected?

15 / 20

Why is it important to know where your air system releases air pressure from?

16 / 20

Most air brake systems will use automatic valves to?

17 / 20

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

18 / 20

Manufactures recommend draining moisture and oil in an air system on a _______ basis.

19 / 20

What is the "cut in" level?

20 / 20

The best way to reduce rough and abrupt braking is to?

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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.