BC Air Brake Practice Test 05

When preparing to take the British Columbia air brake test, practicing with the air brake practice test is key to success. By taking the time to review and study the material, such as understanding how the air brake system works and the proper way to conduct air brake inspections, individuals can increase their confidence before taking the official exam. Not only does the practice test provide a convenient opportunity to familiarize oneself with the test format and question types, but it also helps to identify areas that may require further attention.

BC Air Brake Test 05

1 / 30

What's the purpose of alcohol evaporators and alcohol injectors?

They are optional devices that introduce a small amount of alcohol vapour into the air system

The remove alcohol from the hydraulic master cylinder

They are optional devices that remove any amount of alcohol vapour from the air system

They add alcohol to the air brake chambers

2 / 30

An air brake-endorsed driver's licence is required to operate most vehicles equipped with air-over hydraulic brakes. What is the only exception?

If the brake system doesn't use an air treadle

If a trailer is not used

If it is a bus

If it is a middleweight truck

3 / 30

What's the purpose of an air dryer?

To help keep the lines dry

To remove any water vapour, oil mist and carbon particles from the air before it's delivered to the first reservoir

None of the above

To dry the governor

4 / 30

Who should adjust wedge brakes?

The driver

The carrier

A qualified mechanic

Anyone

5 / 30

Are manual front wheel limiting systems still being installed on new vehicles?

When the carrier orders it

Only when requested

Yes

6 / 30

If you notice more than a few drops of water when you drain the supply reservoir, what does that mean?

Everything is working as expected

None of the above

The air dryer or compressor may need servicing

The governor needs adjustments

7 / 30

Even if the air brake system includes an alcohol evaporator or alcohol injector, do air reservoirs still need to be drained regularly?

Yes

If asked to do so

Only if problems arise

8 / 30

Which statement is false? Other types of foundation brakes found on air-braked vehicles are...

Wedge brakes

Air disc brakes

Air-over-hydraulic brakes

Hydraulic brakes

9 / 30

Which statement is false?

A tractor with a bobtail proportioning system will stop in a shorter distance and control will be increased

A tractor with a bobtail proportioning system will stop in a longer distance and control will be reduced

A tractor with a bobtail proportioning system will stop in a shorter distance but control will be compromised

A tractor with a bobtail proportioning system will stop in a longer distance but control will be compromised

10 / 30

How do you know if you have an air dryer integrated system?

There will be a sticker on the front left corner of the windshield

You can see it

The air dryer will be mounted to a small air tank

None of the above

11 / 30

Can a peace officer place a trailer out of service if the trailer brakes don't apply when the trailer air supply valve is closed?

Yes

If the trip is more than 160 km from the base

Only if towing tandem trailers

12 / 30

What happens to the water vapour when the reservoir has come up to full pressure?

The actuator starts up

A purge port in the bottom of the air dryer will open and the collected contaminants are ejected along with a sudden burst of air

None of the above

The compressor stops compressing air

13 / 30

How many types of front wheel limiting systems are there?

Three

Four

One

Two

14 / 30

What does a round blue button control?

A tractor parking brake valve

A bobtail proportioning system

The supply reservoir

A hand valve

15 / 30

What happens to the air after it passes through the dryers?

It passes through an internal one-way check valve, and onto the first reservoir

Nothing

It gets stored in the lines for future use

It gets pushed to the slack adjusters

16 / 30

What's the purpose of the spring parking brake emergency release system?

It provides a special emergency release tank that can secure spring parking brakes

It provides a special emergency release tank that can be made portable

None of the above

It provides a special emergency release tank that can be used to release spring parking brakes if a disabled vehicle needs to be moved to a safe parking area and its main reservoir pressure is lost

17 / 30

What two positions does the manual front wheel limiting systems have?

Rough and paved

Dry and rocky

Dry and slippery

Wet and slippery

18 / 30

Even if the air brake system includes an air dryer, should air reservoirs still be drained regularly to check for contaminants?

If asked to do so

Yes

Only if pressure gauges show the need

19 / 30

What are some automatic drain valves equipped with to prevent freezing in cold weather?

None of the above

An electric heating element

A hot water valve

Pure alcohol

20 / 30

An automatic front wheel limiting systems consists of a limiting valve. What's another name for this?

A ratio valve

A port valve

A lining valve

A dead valve

21 / 30

What's another name for automatic drain valves?

Splitter valves

Spitter valves

Shooter valves

Sitter valves

22 / 30

Where are alcohol injectors installed?

In front of the trailer air supply valve

In the compressor discharge line between the compressor and the supply reservoir

Behind the two-way check valve

In front of the tractor protection valve

23 / 30

Spring parking brake emergency release systems are sometimes called...

California spring parking brake systems

Rocky spring parking brake systems

Montana spring parking brake systems

None of the above

24 / 30

Where is the automatic front wheel limiting systems mounted?

Half way between the steering axle and the drive axle

On the dash

Near the steering axle

Near the drive axle

25 / 30

Once the vehicle has been moved, the spring parking brakes are re-applied by doing what?

Pulling out and holding the control valve

Adding hand pressure from the control valve

Releasing hand pressure from the control valve

Twisting and turning the control valve

26 / 30

What should the alcohol reservoir be topped up with during the winter months?

Pure alcohol

Methyl hydrate

Methanol

Ethanol

27 / 30

What's the purpose of the one-way check valve?

To keep pressure built up

To keep the air clean

To allow maintenance checks to be done more easily

So the air supply in the primary and secondary reservoirs wouldn't flow backward and be lost

28 / 30

Air-over-hydraulic brakes are often found on what types of vehicles?

Tractor trailers

Middleweight trucks and buses

None of the above

Tandem trailers

29 / 30

What are some air dryers equipped with to prevent freezing in cold weather?

Warm water

Warm air

An electric heating element

Nothing

30 / 30

What air pressure do typical air-over-hydraulic braking systems use?

110 psi

85 psi

90 psi

125 psi

Your score is

BC Air Brake Practice Test 05

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