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

Yellow

Red

Blue

Black

2 / 30

What do brake drums do at high temperature?

They come away from the pads

Nothing

They expand

They reduce size

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

Hooks

Calipers

Diaphragms

4 / 30

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

R-cam

B-cam

D-cam

S-cam

5 / 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

35 psi

45 psi

6 / 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

None of these

A dummy brake hose coupler

A hook at the rear of the cab

7 / 30

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

You can adjust the brakes while pumping the brake pedal

None of these

It can be adjusted electronically

You will have to adjust the brakes manually

8 / 30

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

80 psi

60 psi

90 psi

70 psi

9 / 30

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

The size of the brake chamber

The pressure of the compressed air

The width of the slack adjuster

The length of the slack adjuster

10 / 30

Brake linings lose their effectiveness if...

Put in upside down

Tires are under-inflated

Bought cheaply

They become overheated through misuse or overuse

11 / 30

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

Tripled

Doubled

Quadrupled

The same

12 / 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?

90 psi

110 psi

80 psi

100 psi

13 / 30

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

Grab the rotor

Push against the shoes

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

Block excess air from entering the chamber

14 / 30

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

The same

Quadrupled

Doubled

Tripled

15 / 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°

45°

60°

70°

16 / 30

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

1/2 second

3/4 second

1/4 second

1 second

17 / 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

None of these

Lock the wheels

18 / 30

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

An electromagnetic retarder

An engine compression brake

An exhaust brake retarder

A hydrodynamic (or hydraulic) retarder

19 / 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...

Make sure the brakes are hot

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

Release the parking brake

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

20 / 30

Will supplemental brake systems bring your vehicle to a stop?

It will at low speed

With certain types of vehicles

Yes

21 / 30

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

A powerful spring

A large clamp

A thick cable

Hydraulic fluid

22 / 30

To alleviate overheating, you can...

Pump the brakes

Increase stopping distance

None of these

Brake harder to shorten the distance

23 / 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?

Nothing

Only the trailer releases

They release

They lock

24 / 30

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

Wear power

Force

Air

Oil

25 / 30

What happens when the air enters the brake chambers?

It locks the wheels

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

None of these

It gets vented into the atmosphere

26 / 30

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

Two

Four

Three

Six

27 / 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 trailer wheels

All of these

The drive wheels

28 / 30

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

A switch or lever

With a hand valve

With a foot valve

By changing gears

29 / 30

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

Through the two-way valve

Into the brake lines

Into the atmosphere

Back into the brake chamber

30 / 30

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

Switches

Increased in size

All of these

Valves

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Quebec Air Brake Test 02

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