Quebec Air Brake Test 01

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1 / 30

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

To keep your hands nimble

All of these

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

To allow the air to flow smoothly

2 / 30

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

60 psi

80 psi

110 psi

50 psi

3 / 30

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

Yes

Depending on the vehicle

Only uphill braking

4 / 30

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

75 psi

125 psi

105 psi

65 psi

5 / 30

What happens when you pull on the parking brake control?

The brakes grab

The wheels lock instantly

Nothing happens

Air is released from the vehicle's brake chambers

6 / 30

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

Outside air flow

The service reservoirs of the truck or tractor

Its own compressor

Brake chambers

7 / 30

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

Yes

Only while towing trailers

With certain vehicles only

8 / 30

Heavy vehicles have at least how many compressed air reservoirs?

Three

Five

Two

Six

9 / 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 secondary reservoir

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

It forces it into the supply lines

It sends it to the governor

10 / 30

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

The vehicle's load

All of these

The type of pedal being used

The driver

11 / 30

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

They are less costly than hydraulic brakes

They have proven their reliability

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

12 / 30

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

Yellow diamond

Red diamond

Yellow circle

Yellow triangle

13 / 30

The first reservoir is referred to as the...

None of these

Primary

Supply

Secondary

14 / 30

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

The trailer valve

None of these

The trailer lever

The brake pedal

15 / 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

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

The air pressure gauge drops to zero

The vehicle stops

16 / 30

The first reservoir receives compressed air directly from...

The service reservoir

The service lines

The compressor

The secondary reservoir

17 / 30

Your service brakes will not work properly unless...

You unblock the wheels

All of these

You turn off the compressor

The compressed air reservoirs are adequately filled

18 / 30

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

Beside the driver's seat

In the ceiling of the cab

None of these

Installed on the dashboard

19 / 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...

30 psi

65 psi

25 psi

55 psi

20 / 30

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

It may cease up

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

It may cause a flat tire

It may cause brake fade

21 / 30

The air pressure gauge measures...

The air pressure in the service line

The air pressure in the brake chambers

The air pressure in the spring brakes

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

22 / 30

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

Cable brakes

Emergency brakes

Parking brakes

Service brakes

23 / 30

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

Weekly

Every 72 hours

Daily

Every 48 hours

24 / 30

Where is the air purifier located?

Under the foot valve

Between the air compressor and the supply reservoir

In front of the one-way valve

Beside the two-way valve

25 / 30

How many types of warning devices for low air pressure?

Four

Three

Two

One

26 / 30

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

To the first trailer only

To the trailer

To the tractor and trailer

Just the tractor

27 / 30

What is the air purifier also referred to as?

Air filter

Air bleeder

Air dryer

Air sensor

28 / 30

The compressed air provides the power required to do what?

Turn on the compressor

Apply the parking brake

Start the engine

Activate the service brake and release the parking brake

29 / 30

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

Not if there are multiple reservoirs

Yes

Only if towing a trailer

30 / 30

The compressor is driven by...

The vehicle's engine

Air force

A separate generator

A battery

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Quebec Air Brake Test 01

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