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

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

Release the parking brake

Make sure the brakes are hot

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

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

2 / 30

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

A thick cable

A powerful spring

A large clamp

Hydraulic fluid

3 / 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

100 psi

110 psi

80 psi

4 / 30

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

By changing gears

With a hand valve

A switch or lever

With a foot valve

5 / 30

What happens when the air enters the brake chambers?

It locks the wheels

None of these

It gets vented into the atmosphere

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

6 / 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

7 / 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°

70°

45°

60°

8 / 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

25 psi

15 psi

9 / 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

70 psi

60 psi

90 psi

10 / 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

11 / 30

Will supplemental brake systems bring your vehicle to a stop?

Yes

With certain types of vehicles

It will at low speed

12 / 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

13 / 30

What do brake drums do at high temperature?

They reduce size

Nothing

They come away from the pads

They expand

14 / 30

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

The same

Tripled

Doubled

Quadrupled

15 / 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

You will have to adjust the brakes manually

It can be adjusted electronically

16 / 30

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

S-cam

B-cam

D-cam

R-cam

17 / 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

18 / 30

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

Two

Four

Three

Six

19 / 30

To alleviate overheating, you can...

None of these

Increase stopping distance

Pump the brakes

Brake harder to shorten the distance

20 / 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 length of the slack adjuster

The size of the brake chamber

The pressure of the compressed air

21 / 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

Lock the wheels

Shorten the stopping distance

None of these

22 / 30

Brake linings lose their effectiveness if...

Put in upside down

Bought cheaply

They become overheated through misuse or overuse

Tires are under-inflated

23 / 30

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

Air

Oil

Force

Wear power

24 / 30

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

3/4 second

1/2 second

1 second

1/4 second

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 lock

They release

Only the trailer releases

Nothing

26 / 30

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

Tripled

The same

Doubled

Quadrupled

27 / 30

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

Into the atmosphere

Through the two-way valve

Back into the brake chamber

Into the brake lines

28 / 30

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

Black

Red

Yellow

Blue

29 / 30

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

A dummy brake hose coupler

A hook at the rear of the cab

A safety box

None of these

30 / 30

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

Increased in size

Switches

Valves

All of these

Your score is

Quebec Air Brake Test 02

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