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?

On the dash

Near the steering axle

Half way between the steering axle and the drive axle

Near the drive axle

2 / 30

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

To keep the air clean

To keep pressure built up

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

To allow maintenance checks to be done more easily

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

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

Rough and paved

Dry and rocky

Dry and slippery

Wet and slippery

5 / 30

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

Tractor trailers

None of the above

Middleweight trucks and buses

Tandem trailers

6 / 30

Where are alcohol injectors installed?

In front of the tractor protection valve

Behind the two-way check valve

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

In front of the trailer air supply valve

7 / 30

Who should adjust wedge brakes?

A qualified mechanic

The driver

Anyone

The carrier

8 / 30

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

Yes

If asked to do so

Only if pressure gauges show the need

9 / 30

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

125 psi

110 psi

85 psi

90 psi

10 / 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

11 / 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

The remove alcohol from the hydraulic master cylinder

They add alcohol to the air brake chambers

12 / 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

13 / 30

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

A dead valve

A ratio valve

A port valve

A lining valve

14 / 30

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

Only when requested

When the carrier orders it

Yes

15 / 30

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

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

The actuator starts up

16 / 30

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

Warm air

Warm water

An electric heating element

Nothing

17 / 30

How many types of front wheel limiting systems are there?

Two

Three

Four

One

18 / 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 middleweight truck

If the brake system doesn't use an air treadle

If it is a bus

19 / 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

20 / 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

21 / 30

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

Ethanol

Pure alcohol

Methanol

Methyl hydrate

22 / 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 secure spring parking brakes

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

23 / 30

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

Releasing hand pressure from the control valve

Pulling out and holding the control valve

Adding hand pressure from the control valve

Twisting and turning the control valve

24 / 30

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

Air disc brakes

Wedge brakes

Hydraulic brakes

Air-over-hydraulic brakes

25 / 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

26 / 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

27 / 30

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

None of the above

Rocky spring parking brake systems

California spring parking brake systems

Montana spring parking brake systems

28 / 30

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

None of the above

Pure alcohol

An electric heating element

A hot water valve

29 / 30

What does a round blue button control?

A bobtail proportioning system

A hand valve

The supply reservoir

A tractor parking brake valve

30 / 30

What's another name for automatic drain valves?

Shooter valves

Splitter valves

Sitter valves

Spitter valves

Your score is

BC Air Brake Practice Test 05

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