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

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

Yes

When the carrier orders it

Only when requested

2 / 30

Who should adjust wedge brakes?

The carrier

Anyone

The driver

A qualified mechanic

3 / 30

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

It gets pushed to the slack adjusters

Nothing

It gets stored in the lines for future use

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

4 / 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 lining valve

A dead valve

5 / 30

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

To allow maintenance checks to be done more easily

To keep pressure built up

To keep the air clean

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

6 / 30

How many types of front wheel limiting systems are there?

Three

Two

One

Four

7 / 30

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

The air dryer will be mounted to a small air tank

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

You can see it

None of the above

8 / 30

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

Dry and rocky

Dry and slippery

Wet and slippery

Rough and paved

9 / 30

What's another name for automatic drain valves?

Sitter valves

Splitter valves

Spitter valves

Shooter valves

10 / 30

Which statement is false?

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

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

11 / 30

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

None of the above

Tandem trailers

Middleweight trucks and buses

Tractor trailers

12 / 30

Where are alcohol injectors installed?

Behind the two-way check valve

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

In front of the tractor protection valve

In front of the trailer air supply valve

13 / 30

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

Nothing

An electric heating element

Warm water

Warm air

14 / 30

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

Pulling out and holding the control valve

Adding hand pressure from the control valve

Releasing hand pressure from the control valve

Twisting and turning the control valve

15 / 30

Where is the automatic front wheel limiting systems mounted?

Near the steering axle

Near the drive axle

Half way between the steering axle and the drive axle

On the dash

16 / 30

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

Pure alcohol

None of the above

An electric heating element

A hot water valve

17 / 30

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

Methyl hydrate

Methanol

Pure alcohol

Ethanol

18 / 30

What does a round blue button control?

A bobtail proportioning system

The supply reservoir

A hand valve

A tractor parking brake valve

19 / 30

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

Air-over-hydraulic brakes

Wedge brakes

Hydraulic brakes

Air disc brakes

20 / 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

21 / 30

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

Only if pressure gauges show the need

If asked to do so

Yes

22 / 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

None of the above

Everything is working as expected

The governor needs adjustments

23 / 30

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

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

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

24 / 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

25 / 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

26 / 30

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

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

They add alcohol to the air brake chambers

27 / 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

28 / 30

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

None of the above

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

29 / 30

What's the purpose of an air dryer?

To help keep the lines dry

None of the above

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

30 / 30

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

85 psi

125 psi

110 psi

90 psi

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BC Air Brake Practice Test 05

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