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

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

Lose their effectiveness

Shorten the stopping distance

Lock the wheels

None of these

2 / 30

Will supplemental brake systems bring your vehicle to a stop?

Yes

With certain types of vehicles

It will at low speed

3 / 30

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

The same

Tripled

Doubled

Quadrupled

4 / 30

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

None of these

You will have to adjust the brakes manually

You can adjust the brakes while pumping the brake pedal

It can be adjusted electronically

5 / 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

None of these

A hook at the rear of the cab

6 / 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

All of these

The drive wheels

The trailer wheels

7 / 30

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

All of these

Valves

Increased in size

Switches

8 / 30

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

An electromagnetic retarder

A hydrodynamic (or hydraulic) retarder

An engine compression brake

An exhaust brake retarder

9 / 30

Brake linings lose their effectiveness if...

They become overheated through misuse or overuse

Bought cheaply

Put in upside down

Tires are under-inflated

10 / 30

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

Oil

Air

Force

Wear power

11 / 30

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

Tripled

Quadrupled

The same

Doubled

12 / 30

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

A large clamp

A thick cable

Hydraulic fluid

A powerful spring

13 / 30

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

Yellow

Red

Blue

Black

14 / 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

15 / 30

To alleviate overheating, you can...

Brake harder to shorten the distance

Pump the brakes

None of these

Increase stopping distance

16 / 30

What do brake drums do at high temperature?

Nothing

They reduce size

They expand

They come away from the pads

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 width of the slack adjuster

The size of the brake chamber

18 / 30

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

Into the brake lines

Through the two-way valve

Into the atmosphere

Back into the brake chamber

19 / 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

20 / 30

What happens when the air enters the brake chambers?

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

It locks the wheels

None of these

It gets vented into the atmosphere

21 / 30

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

Four

Two

Three

Six

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

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

Hooks

Diaphragms

Clamps

Calipers

24 / 30

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

D-cam

R-cam

B-cam

S-cam

25 / 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

Nothing

They lock

26 / 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

100 psi

90 psi

80 psi

27 / 30

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

With a hand valve

A switch or lever

By changing gears

With a foot valve

28 / 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°

29 / 30

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

35 psi

15 psi

45 psi

25 psi

30 / 30

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

Push against the shoes

Grab the rotor

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

Block excess air from entering the chamber

Your score is

Quebec Air Brake Test 02

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