Quebec Air Brake Test 02

With the knowledge gained from the practice test, you will feel more comfortable with the exam format and better equipped to handle any unexpected questions that may arise. When it comes time to take your official exam, you will likely feel more prepared and focused, ultimately resulting in passing with flying colors. So, take advantage of the free Quebec Air Brake practice test and arrive at your official exam with the tools and knowledge necessary for success.

1 / 30

What happens if your vehicle is not equipped with automatic self-adjusting brake levers?

It can be adjusted electronically

You can adjust the brakes while pumping the brake pedal

You will have to adjust the brakes manually

None of these

2 / 30

How long does it take for air to pass through the system?

1/2 second

1/4 second

1 second

3/4 second

3 / 30

A disc brake is made up of a disc installed on the hub and brake linings (or 'pads') that are held in place by...

Clamps

Calipers

Hooks

Diaphragms

4 / 30

In contrast to drum brakes, disc brakes consume less...

Wear power

Force

Air

Oil

5 / 30

A drum brake system is made up of brake shoes equipped with linings that do what?

Block excess air from entering the chamber

Press on the inside surface of a drum mounted on the wheel

Grab the rotor

Push against the shoes

6 / 30

To connect brake hose couplers, you must fit them together at what angle and then rotate them until the hoses are lined up straight?

45°

60°

70°

90°

7 / 30

When you double your speed, the braking power required is...

The same

Doubled

Tripled

Quadrupled

8 / 30

What do brake drums do at high temperature?

They come away from the pads

They expand

Nothing

They reduce size

9 / 30

Brake linings lose their effectiveness if...

They become overheated through misuse or overuse

Tires are under-inflated

Bought cheaply

Put in upside down

10 / 30

What is the most popular kind of supplemental brake on the market?

An exhaust brake retarder

A hydrodynamic (or hydraulic) retarder

An engine compression brake

An electromagnetic retarder

11 / 30

When two or more vehicles are hitched together, each vehicle has how many brake hose couplers?

Four

Three

Two

Six

12 / 30

To ensure that air brakes will react as quickly as possible, air brake lines have...

Valves

Increased in size

Switches

All of these

13 / 30

If the load you are carrying doubles the total weight of your vehicle, the stopping or braking distance is...

The same

Doubled

Quadrupled

Tripled

14 / 30

The emergency brake is activated automatically in an emergency situation when the air pressure in the service brake system drops below...

35 psi

45 psi

15 psi

25 psi

15 / 30

What are the most common kind of brake found on heavy vehicles?

R-cam

B-cam

S-cam

D-cam

16 / 30

Engine brakes and retarders are activated by means of...

With a foot valve

By changing gears

With a hand valve

A switch or lever

17 / 30

Which statement is false? The amount of braking power produced results from the combined effect of several mechanical factors, such as...

The pressure of the compressed air

The length of the slack adjuster

The size of the brake chamber

The width of the slack adjuster

18 / 30

The excess heat created by friction between the linings and the drums or discs causes the linings (or the brake) to...

None of these

Lock the wheels

Lose their effectiveness

Shorten the stopping distance

19 / 30

If you pull up on the parking brake control knob, what happens to the wheels of the tractor and the wheels of the trailer or semi-trailer?

Only the trailer releases

Nothing

They release

They lock

20 / 30

No matter what kind of engine brake or retarder is installed on your vehicle, the braking power is always applied to which wheels?

The drive wheels

The trailer wheels

The front wheels

All of these

21 / 30

Some vehicle manufacturers go beyond this standard and calibrate the low air pressure warning threshold at what pressure to give the driver more warning time?

100 psi

80 psi

110 psi

90 psi

22 / 30

Will supplemental brake systems bring your vehicle to a stop?

Yes

With certain types of vehicles

It will at low speed

23 / 30

What happens when the air enters the brake chambers?

It gets vented into the atmosphere

It locks the wheels

None of these

It pushes on the diaphragm that is attached to a push rod

24 / 30

What is the parking brake equipped with that allows the brake to be applied mechanically when the vehicle is parked?

Hydraulic fluid

A powerful spring

A thick cable

A large clamp

25 / 30

When the emergency brakes are activated, the wheels equipped with brake chambers begin to lock as soon as the air pressure falls to...

90 psi

80 psi

60 psi

70 psi

26 / 30

Which statement is false? There is a simple procedure you can use to optimize the play or space between the linings and drums, including...

Fully depress the brake pedal for five seconds and then release it completely

Make sure the brakes are hot

Release the parking brake

Bring the system up to maximum air pressure (120 psi)

27 / 30

If your road tractor is not hitched to a semi-trailer or trailer, you must hook up each brake hose coupler to...

A safety box

A dummy brake hose coupler

A hook at the rear of the cab

None of these

28 / 30

To alleviate overheating, you can...

Brake harder to shorten the distance

None of these

Increase stopping distance

Pump the brakes

29 / 30

When you release the parking brake, where does the air flows?

Into the brake lines

Into the atmosphere

Through the two-way valve

Back into the brake chamber

30 / 30

What colour are the brake hoses that are used to supply air to the brake chambers for the service brakes?

Blue

Yellow

Red

Black

Your score is

Quebec Air Brake Test 02

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