PEI Commercial Drivers License Air Brakes Practice Test 2

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PEI Air Brakes Practice Test 2

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

1 / 20

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

2 minutes

10 minutes

1 minute

5 minutes

2 / 20

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

The vehicle only moves slightly back and forth

The front wheels are blocked

The wheels can only turn a half revolution

The truck can move 1.5 meters

3 / 20

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

Turn off your air brakes

Leave it alone, it's fine

Cover it with tape

Replace the line

4 / 20

What function does the alcohol evaporator perform?

Prevents freezing

Prevents overheating

Prevents the system from building up too much pressure

Prevents moisture build ups in the brake lines

5 / 20

What can cause the air pressure in the air brake system to drop?

Disconnected supply line

A broken air compressor

All of these

A hole in the supply line

6 / 20

The pushrod stroke occurs when compressed air enters the?

Supply tank

Engine block

Brake chamber

Air compressor

7 / 20

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

In case anyone ever asks

So you're not suprised

Because you should know your truck

Because it can be dangerous

8 / 20

Where are the air brake chambers located?

At the front wheels

At each wheel

At the back wheels

Near the compressor

9 / 20

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

Release the spring brakes and apply the service brake

Cover the chamber in soapy water

Fill the compressor

Start the engine

10 / 20

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

Three

Two

Four

Five

11 / 20

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

Check it at the nearest garage

Slow down but keep driving

Stop safely and immediately

Call the police to let them know

12 / 20

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

827 kPa (120 psi)

413 kPa (60 psi)

551 kPa (80 psi)

620 kPa (90 psi)

13 / 20

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

21 kPa / minute

19 kPa / minute

37 kPa / minute

50 kPa / minute

14 / 20

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

690 kPa (100 psi)

514 kPa (74 psi)

414 kPa (60 psi)

242 kPa (35 psi)

15 / 20

Correct belt tension for an air compressor can be determined by

Finger pressure

Firm hand pressure

A karate chop

A tight squeeze of the hand

16 / 20

What does a governor do in an air brake system?

Regulates the tire pressure

Regulates the air pressure

Tells the other brakes what do to

Limits the speed by using automatic braking

17 / 20

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

Weight of the driver

Driving speed

Brake adjustments

Weight of the vehicle

18 / 20

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

380 kPa (55 psi)

413 kPa (60 psi)

242 kPs (35 psi)

551 kPa (80 psi)

19 / 20

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

Dust mask, safety glasses

Shorts and Crocs

Sandals and shorts

Steel toe boots, safety glasses, hard hats

20 / 20

Which statement is true of spring brakes?

They are as strong as service brakes

They are not as strong as service brakes

They can be used in lieu of service brakes

They are stronger than service brakes

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More PEI Commercial Driving Practice Tests

PEI Class 1 Practice Tests

PEI Class 3 Practice Tests

Air Brakes Practice Tests

PEI Class 4 Practice Tests

PEI 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.