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

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

2 / 30

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

It gets stored in the lines for future use

It gets pushed to the slack adjusters

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

Nothing

3 / 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 and control will be increased

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

4 / 30

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

Methyl hydrate

Ethanol

Pure alcohol

Methanol

5 / 30

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

Air-over-hydraulic brakes

Hydraulic brakes

Wedge brakes

Air disc brakes

6 / 30

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

A lining valve

A dead valve

A port valve

A ratio valve

7 / 30

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

They add alcohol to the air brake chambers

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

The remove alcohol from the hydraulic master cylinder

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

8 / 30

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

Yes

Only when requested

When the carrier orders it

9 / 30

What's the purpose of an air dryer?

To dry the governor

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

10 / 30

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

Rocky spring parking brake systems

None of the above

Montana spring parking brake systems

California spring parking brake systems

11 / 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

None of the above

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

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 it is a middleweight truck

If it is a bus

If a trailer is not used

If the brake system doesn't use an air treadle

13 / 30

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

Twisting and turning the control valve

Adding hand pressure from the control valve

Pulling out and holding the control valve

Releasing hand pressure from the control valve

14 / 30

How many types of front wheel limiting systems are there?

One

Four

Two

Three

15 / 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

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

None of the above

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

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

Where is the automatic front wheel limiting systems mounted?

Near the drive axle

On the dash

Half way between the steering axle and the drive axle

Near the steering axle

18 / 30

What's another name for automatic drain valves?

Spitter valves

Splitter valves

Shooter valves

Sitter valves

19 / 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

20 / 30

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

An electric heating element

Nothing

Warm water

Warm air

21 / 30

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

Wet and slippery

Dry and rocky

Dry and slippery

Rough and paved

22 / 30

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

Middleweight trucks and buses

None of the above

Tractor trailers

Tandem trailers

23 / 30

What does a round blue button control?

The supply reservoir

A hand valve

A bobtail proportioning system

A tractor parking brake valve

24 / 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

25 / 30

Who should adjust wedge brakes?

The carrier

A qualified mechanic

Anyone

The driver

26 / 30

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

Pure alcohol

A hot water valve

None of the above

An electric heating element

27 / 30

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

110 psi

85 psi

90 psi

125 psi

28 / 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

Only if pressure gauges show the need

Yes

29 / 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

Everything is working as expected

The air dryer or compressor may need servicing

30 / 30

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

You can see it

None of the above

The air dryer will be mounted to a small air tank

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

Your score is

BC Air Brake Practice Test 05

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