Newfoundland Commercial Drivers License Air Brakes Practice Test 4

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Created by Commercial Driver HQ

Newfoundland Air Brakes Practice Test 4

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

1 / 20

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

2 / 20

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

3 / 20

Where is the brake lining fastened?

4 / 20

What is the "cut in" level?

5 / 20

Which colour represent the trailer supply line?

6 / 20

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

7 / 20

Doing this will put unnecessary strain on your vehicles braking system.

8 / 20

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

9 / 20

What is an ABS system?

10 / 20

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

11 / 20

What is the "cut-out" level?

12 / 20

When can you adjust your own air brakes?

13 / 20

Spring brakes will begin to apply when the pressure starts to drop below?

14 / 20

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

15 / 20

Cut in pressure level must never fall below __________.

16 / 20

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

17 / 20

The air system pressure range must be between _________.

18 / 20

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

19 / 20

A warning system must alert the driver when the pressure drops below?

20 / 20

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

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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.