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

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

Push against the shoes

Grab the rotor

2 / 30

What do brake drums do at high temperature?

They expand

Nothing

They reduce size

They come away from the pads

3 / 30

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

Into the atmosphere

Into the brake lines

Back into the brake chamber

Through the two-way valve

4 / 30

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

None of these

A hook at the rear of the cab

A dummy brake hose coupler

A safety box

5 / 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

70 psi

80 psi

60 psi

6 / 30

Will supplemental brake systems bring your vehicle to a stop?

Yes

With certain types of vehicles

It will at low speed

7 / 30

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

Two

Four

Three

Six

8 / 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?

90°

60°

45°

70°

9 / 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 front wheels

The drive wheels

All of these

The trailer wheels

10 / 30

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

An exhaust brake retarder

An engine compression brake

An electromagnetic retarder

A hydrodynamic (or hydraulic) retarder

11 / 30

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

Tripled

The same

Quadrupled

Doubled

12 / 30

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

B-cam

R-cam

S-cam

D-cam

13 / 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?

They release

Only the trailer releases

They lock

Nothing

14 / 30

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

Tripled

The same

Quadrupled

Doubled

15 / 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

16 / 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...

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

Make sure the brakes are hot

Release the parking brake

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

17 / 30

Brake linings lose their effectiveness if...

Tires are under-inflated

They become overheated through misuse or overuse

Put in upside down

Bought cheaply

18 / 30

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

All of these

Increased in size

Switches

Valves

19 / 30

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

The width of the slack adjuster

The size of the brake chamber

The pressure of the compressed air

The length of the slack adjuster

20 / 30

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

Red

Yellow

Blue

Black

21 / 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

Lose their effectiveness

Lock the wheels

Shorten the stopping distance

22 / 30

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

3/4 second

1/2 second

1 second

1/4 second

23 / 30

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

Wear power

Air

Oil

Force

24 / 30

To alleviate overheating, you can...

None of these

Brake harder to shorten the distance

Pump the brakes

Increase stopping distance

25 / 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?

110 psi

80 psi

100 psi

90 psi

26 / 30

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

With a foot valve

With a hand valve

A switch or lever

By changing gears

27 / 30

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

None of these

You can adjust the brakes while pumping the brake pedal

You will have to adjust the brakes manually

It can be adjusted electronically

28 / 30

What happens when the air enters the brake chambers?

It locks the wheels

It gets vented into the atmosphere

None of these

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

29 / 30

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

A thick cable

Hydraulic fluid

A powerful spring

A large clamp

30 / 30

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

25 psi

15 psi

45 psi

35 psi

Your score is

Quebec Air Brake Test 02

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