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

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

The air dryer or compressor may need servicing

Everything is working as expected

The governor needs adjustments

None of the above

2 / 30

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

Methyl hydrate

Ethanol

Pure alcohol

Methanol

3 / 30

Who should adjust wedge brakes?

Anyone

The driver

The carrier

A qualified mechanic

4 / 30

What's the purpose of an air dryer?

None of the above

To help keep the lines dry

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

5 / 30

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

A port valve

A ratio valve

A dead valve

A lining valve

6 / 30

How many types of front wheel limiting systems are there?

Two

Three

One

Four

7 / 30

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

Montana spring parking brake systems

None of the above

California spring parking brake systems

Rocky spring parking brake systems

8 / 30

What does a round blue button control?

A tractor parking brake valve

A bobtail proportioning system

The supply reservoir

A hand valve

9 / 30

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

Yes

Only if problems arise

If asked to do so

10 / 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?

If the trip is more than 160 km from the base

Only if towing tandem trailers

Yes

11 / 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 pushed to the slack adjusters

It gets stored in the lines for future use

12 / 30

Where are alcohol injectors installed?

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

In front of the trailer air supply valve

13 / 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

14 / 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 shorter distance and control will be increased

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 longer distance and control will be reduced

15 / 30

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

Pulling out and holding the control valve

Twisting and turning the control valve

Releasing hand pressure from the control valve

Adding hand pressure from the control valve

16 / 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

17 / 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

18 / 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

19 / 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

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

The remove alcohol from the hydraulic master cylinder

20 / 30

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

Warm water

An electric heating element

Nothing

Warm air

21 / 30

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

110 psi

125 psi

90 psi

85 psi

22 / 30

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

An electric heating element

Pure alcohol

None of the above

A hot water valve

23 / 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

24 / 30

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

Wet and slippery

Rough and paved

Dry and slippery

Dry and rocky

25 / 30

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

You can see it

The air dryer will be mounted to a small air tank

None of the above

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

26 / 30

Where is the automatic front wheel limiting systems mounted?

Near the steering axle

Half way between the steering axle and the drive axle

On the dash

Near the drive axle

27 / 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

28 / 30

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

When the carrier orders it

Only when requested

Yes

29 / 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 bus

If it is a middleweight truck

If a trailer is not used

If the brake system doesn't use an air treadle

30 / 30

What's another name for automatic drain valves?

Shooter valves

Sitter valves

Splitter valves

Spitter valves

Your score is

BC Air Brake Practice Test 05

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