Alberta Commercial Drivers License Air Brakes Practice Test 5

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Alberta Air Brakes Practice Test 5

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

1 / 20

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

Dust mask, safety glasses

Shorts and Crocs

Steel toe boots, safety glasses, hard hats

Sandals and shorts

2 / 20

Which of these is not part of an air brake system?

Drum

Rotors

Shoe

Lining

3 / 20

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

A school bus

A pickup truck

A hearse

A compact car

4 / 20

Most air brake systems will use automatic valves to?

Increase pressure at the back wheels

Increase pressure at the front wheels

Reduce pressure at the back wheels

Reduce pressure at the front wheels

5 / 20

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

Stop safely and immediately

Call the police to let them know

Check it at the nearest garage

Slow down but keep driving

6 / 20

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

380 kPa (55 psi)

242 kPs (35 psi)

413 kPa (60 psi)

551 kPa (80 psi)

7 / 20

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

Wear a helmet in the cab

Ride the brake pedal all the time

Follow other vehicles at a safe distance

Drive on highways only

8 / 20

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

Beside the supply tank

Beside the air compressor

On each wheels brake

On the vehicle dashboard

9 / 20

The air system pressure range must be between _________.

690 kPa (100 psi) and 1380 kPa (200 psi)

413 kPa (60 psi) and 828 kPa (120 psi)

551 kPa (80 psi) and 1000 kPa (145 psi)

483 kPa (70 psi) and 1138 kPa (165 psi)

10 / 20

What powers the air brakes air compressor system?

The rotation of the wheels

Overhead wires

The trucks engine

The battery

11 / 20

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

Weekly

Quarterly

Monthly

Daily

12 / 20

Which can contaminate a brake systems air lines?

Dust

Grease and oil

Dirt

Water and salt

13 / 20

What is the "cut-out" level?

The safest pressure level you can turn off the truck at

The pressure level that triggers the governor to turn on the air compressor

The pressure level that triggers the governor to cut off the air compressor

The maximum speed the air brakes can stop at

14 / 20

What does a governor do in an air brake system?

Tells the other brakes what do to

Limits the speed by using automatic braking

Regulates the tire pressure

Regulates the air pressure

15 / 20

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

The air valve opens letting more air into the brakes

The air valve closes, leaving the brake pressure the same

The air valve is operated by the gas pedal

The air valve signals the compressor to turn on

16 / 20

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

So you're not suprised

Because you should know your truck

Because it can be dangerous

In case anyone ever asks

17 / 20

What is the service brake used for?

None of these

Emergency braking

Drifting

Normal braking

18 / 20

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

Exceeding the vehicles weight limit

Driving the speed limit

Driving too slow

Proper maintenance

19 / 20

Any commercial vehicle with air brakes must not lose system pressure with the brakes applied at a rate of more than?

19 kPa / minute

50 kPa / minute

37 kPa / minute

21 kPa / minute

20 / 20

The spring brake is designed for which situation?

Skids and emergencies

Parking and emergencies

Loading skids into the trailer

Skids and parking

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More Alberta Commercial Driving Practice Tests

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Alberta Class 1 Practice Tests

Alberta Class 3 Practice Tests

Alberta Class 4 Practice Tests

Alberta Road Signs Test

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.