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?

They allow air to be exhausted through ports

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

They allow air to flow in both directions

None of the above

2 / 30

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

Primary and secondary reservoirs

Supply and primary reservoir

Supply reservoir and secondary reservoirs

Supply reservoir only but use for psi and kPa

3 / 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

4 / 30

What are the problems using the air brakes for parking?

None of the above

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

The air will eventually leave the lines

Not enough air to hold the vehicle

5 / 30

What type of vehicle are safety actuators typically used on?

Buses and highway coaches

Fire trucks

Dump trucks

Large tractor trailers

6 / 30

What does a quick release valve do?

It controls the air flow

None of the above

It stops the flow of air going into the reservoirs

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

7 / 30

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

Four

One

Two

Three

8 / 30

How often should you drain reservoirs?

Monthly

Every 48 hours

Daily

Weekly

9 / 30

What is the purpose of the relay valve?

To relay computerized messages from the brakes to the gauges

To help apply the brakes quicker

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

To push air through the lines

10 / 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?

Yes

Just for 2 to 3 seconds

Up to 5 seconds maximum

11 / 30

Which reservoir usually has the most contaminants in it?

The secondary reservoir

The supply reservoir

They all have the same amount

The primary reservoir

12 / 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 whichever brakes need to be applied first

To both front and rear axle brakes

13 / 30

When should caging of park brake actually be done?

Only in an emergency

Prior to leaving on your daily trip

Every 500 km

Once you've traveled 160 km during that trip

14 / 30

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

Secondary tank first

Both sections are activated

Primary tank first

It doesn't matter as long as it works

15 / 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

16 / 30

What's another name for a drain valve?

Drain stems

Drain holes

Drain releases

Drain cocks

17 / 30

What is meant by compounding air brakes?

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

When the park brake is not working

When the service brake is not working

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

18 / 30

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

Caging

Sweeping

Pushing

Pulling

19 / 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 toggle

A wig-wag

A mig-mag

A woggle

20 / 30

What is the purpose of a dual air brake system?

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

They are in all new vehicles

Works better with tandem wheels

No advantage whatsoever

21 / 30

Where is the relay valve typically installed?

Between the reservoir and the rear brake chambers

Right beside the quick release valve

Beside the governor

In front of the foot valve

22 / 30

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

If the compressor is too small

If the air lines are too thin

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 overheating

23 / 30

How long have dual air brake systems been in use?

The last ten years

Since the mid-1970'

Since 1992

Since early 2000's

24 / 30

What is another name for the foot brake pedal?

Thread

Bar

Treadle

Push rod

25 / 30

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

Safety actuator

None of the above

Cable

Air-over hydraulic

26 / 30

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

Pull over and stop

Keep going but allow five times more to stop

None of the above

Allow the compressor to build up more air before you stop

27 / 30

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

The supply reservoir

The primary reservoir

The secondary reservoir

The biggest tank

28 / 30

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

The air parking brake

The hydraulic parking brake

The spring parking brake

The cable parking brake

29 / 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

30 / 30

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

Governor line

Supply line

Delivery line

Discharge line

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BC Air Brake Practice Test 03

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