BC Air Brake Practice Test 03

Taking the BC air brake practice test can be a nerve-wracking experience for those wanting to obtain their air brake endorsement. However, with proper preparation and practice, passing the official exam with flying colors is achievable. It is recommended to use certified training materials and take advantage of online practice tests to gain an in-depth understanding of the air brake system and regulations.

BC Air Brake Test 03

1 / 30

What do one-way check valves do?

None of the above

They allow air to be exhausted through ports

They allow air to flow in both directions

They allow air to flow from the supply reservoir to the primary and secondary reservoirs

2 / 30

What's another name for a drain valve?

Drain holes

Drain stems

Drain releases

Drain cocks

3 / 30

What is meant by compounding air brakes?

When the park brake is released at the same time as the service brake

When the park brake is not working

When a service brake application is made with the park brake still applied

When the service brake is not working

4 / 30

Where is the relay valve typically installed?

Right beside the quick release valve

In front of the foot valve

Between the reservoir and the rear brake chambers

Beside the governor

5 / 30

What happens when the driver releases the foot valve?

Air pressure in the brake chambers exhausts into the atmosphere

Air pressure in the brake lines remains constant

None of the above

Air pressure build back up

6 / 30

In a dual air brake system, where is the air from the primary tank applied to?

To the rear axle brakes

To the front axle brakes

To both front and rear axle brakes

To whichever brakes need to be applied first

7 / 30

Typically, where is the low-air warning device connected to?

The secondary reservoir

The supply reservoir

The biggest tank

The primary reservoir

8 / 30

What is the second type of parking brake in an air brake system known as?

None of the above

Safety actuator

Cable

Air-over hydraulic

9 / 30

What is the purpose of the relay valve?

To help apply the brakes quicker

To relay computerized messages from the brakes to the gauges

To reduce the lag time when the brakes are applied, and when they're released

To push air through the lines

10 / 30

What are the problems using the air brakes for parking?

Not enough air to hold the vehicle

None of the above

Any loss of air pressure and a possible rollaway collision could happen

The air will eventually leave the lines

11 / 30

In a dual air brake system, if one of the system totally fails, is the driver able to make a controlled stop?

Not unless the parking/emergency brake is also applied

Yes, but it will be much longer

Yes

12 / 30

What is the most common type of parking brake in an air brake system?

The cable parking brake

The hydraulic parking brake

The air parking brake

The spring parking brake

13 / 30

When should caging of park brake actually be done?

Prior to leaving on your daily trip

Only in an emergency

Once you've traveled 160 km during that trip

Every 500 km

14 / 30

Does the foot control valve have the ability to maintain the application pressure that you've chosen, even if there is a small leak downstream from the foot valve?

Up to 5 seconds maximum

Just for 2 to 3 seconds

Yes

15 / 30

Some older vehicles are equipped with a low-air warning device near the top of the windshield that drops into the driver's view when air pressure drops. What is this?

A wig-wag

A mig-mag

A toggle

A woggle

16 / 30

What type of vehicle are safety actuators typically used on?

Dump trucks

Buses and highway coaches

Fire trucks

Large tractor trailers

17 / 30

If the low-air pressure warning light comes on, what should you do?

None of the above

Pull over and stop

Keep going but allow five times more to stop

Allow the compressor to build up more air before you stop

18 / 30

What is the name of the line that air flows from the foot valve to the foundation brakes?

Supply line

Discharge line

Governor line

Delivery line

19 / 30

In a dual air brake system, when brakes are applied, which section activates first?

Primary tank first

Secondary tank first

Both sections are activated

It doesn't matter as long as it works

20 / 30

What does a quick release valve do?

It allows the brakes to release quickly and fully, by allowing the pressurized air to exhaust near the brake chambers

None of the above

It controls the air flow

It stops the flow of air going into the reservoirs

21 / 30

What is another name for manually releasing an applied spring parking brake?

Pulling

Sweeping

Pushing

Caging

22 / 30

Many vehicles have a single gauge with two needles, indicating the pressure in which reservoirs?

Primary and secondary reservoirs

Supply reservoir only but use for psi and kPa

Supply reservoir and secondary reservoirs

Supply and primary reservoir

23 / 30

What is another name for the foot brake pedal?

Push rod

Thread

Bar

Treadle

24 / 30

What is the purpose of a dual air brake system?

Works better with tandem wheels

It allows the brake system to be divided into two independent sections with each section having its own supply, delivery, and exhaust ports

No advantage whatsoever

They are in all new vehicles

25 / 30

How long have dual air brake systems been in use?

Since the mid-1970'

The last ten years

Since early 2000's

Since 1992

26 / 30

Other than a leak, what could cause low-air pressure?

If you apply the brakes repeatedly and have used up the air supply more rapidly than the compressor can replenish it

If the compressor is too small

If the compressor is overheating

If the air lines are too thin

27 / 30

Which reservoir usually has the most contaminants in it?

The supply reservoir

The primary reservoir

They all have the same amount

The secondary reservoir

28 / 30

How often should you drain reservoirs?

Daily

Monthly

Every 48 hours

Weekly

29 / 30

If there are two reservoirs, how many pressure gauges are there?

One

Four

Three

Two

30 / 30

At what point does the low-air warning device come on?

When air pressure drops below 50 psi

When air pressure drops below 60 psi

When air pressure drops below 20 psi

When air pressure drops below 80 psi

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BC Air Brake Practice Test 03

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