Quebec Air Brake Test 01

The free practice test is designed to simulate the real exam, giving you a better understanding of what to expect and helping you identify any weak areas requiring extra attention. Additionally, practicing with the free test can help build your confidence and reduce your anxiety on exam day. With the right knowledge, preparation, and a positive mindset, you can pass your air brake exam and take one step closer to your career goals.

1 / 30

The compressed air provides the power required to do what?

Activate the service brake and release the parking brake

Turn on the compressor

Start the engine

Apply the parking brake

2 / 30

In winter, why should you bleed the reservoirs after operating your vehicle while it is still warm?

To avoid the risk of the valves freezing up and remaining stuck in the open position

To keep your hands nimble

All of these

To allow the air to flow smoothly

3 / 30

Where is the air purifier located?

In front of the one-way valve

Between the air compressor and the supply reservoir

Under the foot valve

Beside the two-way valve

4 / 30

The air pressure gauge measures...

The air pressure in the service line

The air pressure in the spring brakes

The air pressure in the brake chambers

The air pressure in the service reservoirs of a bus, truck or tractor

5 / 30

Once the air compressor draws in and stores air from the outside, what does it do with it?

It compresses its volume and then sends the compressed air into the supply reservoir

It compresses its volume and then sends the compressed air into the secondary reservoir

It forces it into the supply lines

It sends it to the governor

6 / 30

Is it essential for the air to be clean if the brake system is to perform well?

Only if towing a trailer

Yes

Not if there are multiple reservoirs

7 / 30

The air compressor generally begins operating when the air pressure in the service reservoirs drops below...

65 psi

125 psi

105 psi

75 psi

8 / 30

The amount of air pressure required may vary from one vehicle to another and is affected by...

The vehicle's load

The type of pedal being used

All of these

The driver

9 / 30

The compressor is driven by...

A battery

Air force

The vehicle's engine

A separate generator

10 / 30

What is used to activate the service brakes on all of the wheels of the trailer or semi-trailer?

The brake pedal

The trailer lever

The trailer valve

None of these

11 / 30

The level at which the low air pressure indicator is activated varies depending on the vehicle's brake system, but is never lower than...

55 psi

25 psi

65 psi

30 psi

12 / 30

How many types of warning devices for low air pressure?

Two

One

Four

Three

13 / 30

Can the handbrake ever be used as a parking brake or, when on the road, as a service brake?

Only while towing trailers

With certain vehicles only

Yes

14 / 30

To eliminate them, how often do the reservoirs need to be emptied completely?

Weekly

Every 72 hours

Daily

Every 48 hours

15 / 30

The hand brake is either attached to the steering column or...

None of these

Beside the driver's seat

Installed on the dashboard

In the ceiling of the cab

16 / 30

Your service brakes will not work properly unless...

You unblock the wheels

The compressed air reservoirs are adequately filled

All of these

You turn off the compressor

17 / 30

What of the following is not an advantage of air brakes?

They are less costly than hydraulic brakes

They are usually more powerful than hydraulic systems

It is easy to connect other vehicles and other air-powered equipment to them. For example, compressed air is now used for the suspension and certain other equipment

They have proven their reliability

18 / 30

Which statement is false? All brake systems include...

Emergency brakes

Cable brakes

Service brakes

Parking brakes

19 / 30

Heavy vehicles have at least how many compressed air reservoirs?

Three

Six

Five

Two

20 / 30

What is the air purifier also referred to as?

Air bleeder

Air filter

Air dryer

Air sensor

21 / 30

If the compressor fails, will the service brakes still work for a while?

Depending on the vehicle

Only uphill braking

Yes

22 / 30

The parking brake control is located on the dashboard and is what colour and shape?

Yellow triangle

Red diamond

Yellow circle

Yellow diamond

23 / 30

What happens when you pull on the parking brake control?

Air is released from the vehicle's brake chambers

The wheels lock instantly

Nothing happens

The brakes grab

24 / 30

What happens if you use the hand brake as a service brake?

It may cease up

It may cause a flat tire

The braking effect will not be equally distributed over all the wheels in the vehicle combination

It may cause brake fade

25 / 30

The pressure regulator starts the air compressor before the air pressure in the reservoirs drops to...

60 psi

50 psi

80 psi

110 psi

26 / 30

The first reservoir is referred to as the...

Primary

None of these

Secondary

Supply

27 / 30

Trailers and semi-trailers have their own compressed air reservoirs that are supplied by...

Its own compressor

Outside air flow

The service reservoirs of the truck or tractor

Brake chambers

28 / 30

What happens if the air pressure drops so low in one of the circuits that the service brakes are unable to work effectively?

The wheels lock

The vehicle stops

A visual warning device is activated to alert the driver, sometimes accompanied by a buzzer

The air pressure gauge drops to zero

29 / 30

The first reservoir receives compressed air directly from...

The compressor

The service reservoir

The secondary reservoir

The service lines

30 / 30

This hand brake control is used to apply the service brakes...

To the first trailer only

Just the tractor

To the tractor and trailer

To the trailer

Your score is

Quebec Air Brake Test 01

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