Quebec Air Brake Test 01

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1 / 30

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

Just the tractor

To the tractor and trailer

To the trailer

To the first trailer only

2 / 30

What happens when you pull on the parking brake control?

Nothing happens

Air is released from the vehicle's brake chambers

The brakes grab

The wheels lock instantly

3 / 30

Heavy vehicles have at least how many compressed air reservoirs?

Two

Six

Five

Three

4 / 30

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

110 psi

60 psi

80 psi

50 psi

5 / 30

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

Every 48 hours

Weekly

Every 72 hours

Daily

6 / 30

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

Parking brakes

Emergency brakes

Cable brakes

Service brakes

7 / 30

Your service brakes will not work properly unless...

The compressed air reservoirs are adequately filled

You turn off the compressor

You unblock the wheels

All of these

8 / 30

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

All of these

To keep your hands nimble

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

To allow the air to flow smoothly

9 / 30

The compressor is driven by...

Air force

The vehicle's engine

A separate generator

A battery

10 / 30

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

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

They are less costly than hydraulic brakes

They are usually more powerful than hydraulic systems

11 / 30

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

It may cause brake fade

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

12 / 30

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

Yellow circle

Yellow triangle

Red diamond

Yellow diamond

13 / 30

What is the air purifier also referred to as?

Air filter

Air dryer

Air bleeder

Air sensor

14 / 30

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

Yes

Depending on the vehicle

Only uphill braking

15 / 30

The compressed air provides the power required to do what?

Start the engine

Activate the service brake and release the parking brake

Turn on the compressor

Apply the parking brake

16 / 30

The air pressure gauge measures...

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

The air pressure in the spring brakes

The air pressure in the service line

The air pressure in the brake chambers

17 / 30

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

Yes

With certain vehicles only

Only while towing trailers

18 / 30

The first reservoir is referred to as the...

Supply

None of these

Primary

Secondary

19 / 30

The first reservoir receives compressed air directly from...

The service reservoir

The service lines

The secondary reservoir

The compressor

20 / 30

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

All of these

The driver

The type of pedal being used

The vehicle's load

21 / 30

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

125 psi

65 psi

105 psi

75 psi

22 / 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 sends it to the governor

It forces it into the supply lines

23 / 30

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

Brake chambers

Outside air flow

Its own compressor

The service reservoirs of the truck or tractor

24 / 30

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

Installed on the dashboard

Beside the driver's seat

None of these

In the ceiling of the cab

25 / 30

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

None of these

The trailer lever

The trailer valve

The brake pedal

26 / 30

How many types of warning devices for low air pressure?

One

Four

Two

Three

27 / 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 vehicle stops

The air pressure gauge drops to zero

The wheels lock

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

28 / 30

Where is the air purifier located?

Beside the two-way valve

Under the foot valve

In front of the one-way valve

Between the air compressor and the supply reservoir

29 / 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...

65 psi

30 psi

25 psi

55 psi

30 / 30

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

Yes

Not if there are multiple reservoirs

Only if towing a trailer

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Quebec Air Brake Test 01

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