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 the spring parking brake emergency release system?

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

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

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

2 / 30

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

Pure alcohol

Ethanol

Methyl hydrate

Methanol

3 / 30

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

It gets stored in the lines for future use

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

It gets pushed to the slack adjusters

Nothing

4 / 30

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

Air-over-hydraulic brakes

Hydraulic brakes

Air disc brakes

Wedge brakes

5 / 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

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

The air dryer or compressor may need servicing

The governor needs adjustments

None of the above

7 / 30

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

A dead valve

A lining valve

A ratio valve

A port valve

8 / 30

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

Yes

When the carrier orders it

Only when requested

9 / 30

What does a round blue button control?

A hand valve

A tractor parking brake valve

The supply reservoir

A bobtail proportioning system

10 / 30

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

90 psi

125 psi

85 psi

110 psi

11 / 30

Who should adjust wedge brakes?

A qualified mechanic

Anyone

The carrier

The driver

12 / 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

13 / 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 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

14 / 30

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

Tractor trailers

Tandem trailers

Middleweight trucks and buses

None of the above

15 / 30

Where are alcohol injectors installed?

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

In front of the trailer air supply valve

In front of the tractor protection valve

Behind the two-way check valve

16 / 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

17 / 30

What's another name for automatic drain valves?

Shooter valves

Sitter valves

Spitter valves

Splitter valves

18 / 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

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

They add alcohol to the air brake chambers

The remove alcohol from the hydraulic master cylinder

19 / 30

Where is the automatic front wheel limiting systems mounted?

On the dash

Near the steering axle

Near the drive axle

Half way between the steering axle and the drive axle

20 / 30

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

Warm air

Nothing

An electric heating element

Warm water

21 / 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 a trailer is not used

If it is a middleweight truck

If the brake system doesn't use an air treadle

22 / 30

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

Rough and paved

Dry and rocky

Dry and slippery

Wet and slippery

23 / 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

24 / 30

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

To keep pressure built up

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

To keep the air clean

To allow maintenance checks to be done more easily

25 / 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

26 / 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

You can see it

The air dryer will be mounted to a small air tank

27 / 30

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

A hot water valve

None of the above

An electric heating element

Pure alcohol

28 / 30

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

Montana spring parking brake systems

California spring parking brake systems

None of the above

Rocky spring parking brake systems

29 / 30

How many types of front wheel limiting systems are there?

Two

One

Four

Three

30 / 30

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

If asked to do so

Yes

Only if problems arise

Your score is

BC Air Brake Practice Test 05

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