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

The actuator starts up

The compressor stops compressing air

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

2 / 30

What's another name for automatic drain valves?

Spitter valves

Sitter valves

Splitter valves

Shooter valves

3 / 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

Only if towing tandem trailers

If the trip is more than 160 km from the base

4 / 30

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

Ethanol

Methanol

Pure alcohol

Methyl hydrate

5 / 30

What's the purpose of an air dryer?

To dry the governor

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

To help keep the lines dry

None of the above

6 / 30

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

The remove alcohol from the hydraulic master cylinder

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

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

They add alcohol to the air brake chambers

7 / 30

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

Twisting and turning the control valve

Releasing hand pressure from the control valve

Adding hand pressure from the control valve

Pulling out and holding the control valve

8 / 30

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

When the carrier orders it

Yes

Only when requested

9 / 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

10 / 30

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

The governor needs adjustments

None of the above

The air dryer or compressor may need servicing

Everything is working as expected

11 / 30

Where are alcohol injectors installed?

Behind the two-way check valve

In front of the tractor protection valve

In front of the trailer air supply valve

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

12 / 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 a trailer is not used

If the brake system doesn't use an air treadle

If it is a middleweight truck

If it is a bus

13 / 30

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

You can see it

None of the above

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

The air dryer will be mounted to a small air tank

14 / 30

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

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

To keep the air clean

To keep pressure built up

15 / 30

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

Yes

If asked to do so

Only if pressure gauges show the need

16 / 30

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

None of the above

Tractor trailers

Middleweight trucks and buses

Tandem trailers

17 / 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

It gets stored in the lines for future use

It gets pushed to the slack adjusters

Nothing

18 / 30

Who should adjust wedge brakes?

A qualified mechanic

The driver

The carrier

Anyone

19 / 30

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

California spring parking brake systems

Rocky spring parking brake systems

None of the above

Montana spring parking brake systems

20 / 30

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

110 psi

125 psi

90 psi

85 psi

21 / 30

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

A port valve

A lining valve

A ratio valve

A dead valve

22 / 30

How many types of front wheel limiting systems are there?

Three

Four

One

Two

23 / 30

Which statement is false?

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 and control will be reduced

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

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

24 / 30

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

Air-over-hydraulic brakes

Wedge brakes

Air disc brakes

Hydraulic brakes

25 / 30

What does a round blue button control?

A tractor parking brake valve

The supply reservoir

A bobtail proportioning system

A hand valve

26 / 30

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

Dry and rocky

Rough and paved

Wet and slippery

Dry and slippery

27 / 30

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

Warm water

An electric heating element

Warm air

Nothing

28 / 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

29 / 30

Where is the automatic front wheel limiting systems mounted?

On the dash

Half way between the steering axle and the drive axle

Near the drive axle

Near the steering axle

30 / 30

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

Only if problems arise

If asked to do so

Yes

Your score is

BC Air Brake Practice Test 05

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