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

Where is the automatic front wheel limiting systems mounted?

Near the drive axle

Near the steering axle

Half way between the steering axle and the drive axle

On the dash

2 / 30

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

A hot water valve

Pure alcohol

An electric heating element

None of the above

3 / 30

How many types of front wheel limiting systems are there?

Four

Three

Two

One

4 / 30

What's the purpose of an air dryer?

None of the above

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

To dry the governor

5 / 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 it is a bus

If the brake system doesn't use an air treadle

If it is a middleweight truck

6 / 30

What does a round blue button control?

The supply reservoir

A hand valve

A tractor parking brake valve

A bobtail proportioning system

7 / 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

8 / 30

Who should adjust wedge brakes?

The driver

A qualified mechanic

Anyone

The carrier

9 / 30

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

Hydraulic brakes

Wedge brakes

Air disc brakes

Air-over-hydraulic brakes

10 / 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 pushed to the slack adjusters

Nothing

It gets stored in the lines for future use

11 / 30

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

An electric heating element

Warm air

Warm water

Nothing

12 / 30

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

Dry and slippery

Dry and rocky

Wet and slippery

Rough and paved

13 / 30

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

None of the above

The governor needs adjustments

The air dryer or compressor may need servicing

Everything is working as expected

14 / 30

Which statement is false?

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 but control will be compromised

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

15 / 30

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

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

The actuator starts up

None of the above

The compressor stops compressing air

16 / 30

Where are alcohol injectors installed?

In front of the tractor protection valve

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

In front of the trailer air supply valve

Behind the two-way check valve

17 / 30

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

Adding hand pressure from the control valve

Twisting and turning the control valve

Releasing hand pressure from the control valve

Pulling out and holding the control valve

18 / 30

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

Methanol

Ethanol

Methyl hydrate

Pure alcohol

19 / 30

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

When the carrier orders it

Yes

Only when requested

20 / 30

What's another name for automatic drain valves?

Shooter valves

Sitter valves

Spitter valves

Splitter valves

21 / 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

22 / 30

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

Yes

Only if pressure gauges show the need

If asked to do so

23 / 30

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

Montana spring parking brake systems

Rocky spring parking brake systems

None of the above

California spring parking brake systems

24 / 30

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

Tandem trailers

Middleweight trucks and buses

Tractor trailers

None of the above

25 / 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

None of the above

The air dryer will be mounted to a small air tank

You can see it

26 / 30

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

They add alcohol to the air brake chambers

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

27 / 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 dead valve

A lining valve

28 / 30

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

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

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 secure spring parking brakes

29 / 30

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

To keep pressure built up

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

30 / 30

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

110 psi

90 psi

85 psi

125 psi

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BC Air Brake Practice Test 05

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