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 flow from the supply reservoir to the primary and secondary reservoirs

None of the above

They allow air to flow in both directions

They allow air to be exhausted through ports

2 / 30

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

To the front axle brakes

To the rear axle brakes

To whichever brakes need to be applied first

To both front and rear axle brakes

3 / 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

Allow the compressor to build up more air before you stop

None of the above

4 / 30

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

Safety actuator

Air-over hydraulic

Cable

None of the above

5 / 30

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

The hydraulic parking brake

The spring parking brake

The cable parking brake

The air parking brake

6 / 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

7 / 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

No advantage whatsoever

They are in all new vehicles

Works better with tandem wheels

8 / 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

Yes

Just for 2 to 3 seconds

9 / 30

What happens when the driver releases the foot valve?

Air pressure in the brake lines remains constant

None of the above

Air pressure build back up

Air pressure in the brake chambers exhausts into the atmosphere

10 / 30

Which reservoir usually has the most contaminants in it?

The primary reservoir

The secondary reservoir

They all have the same amount

The supply reservoir

11 / 30

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

Supply line

Governor line

Discharge line

Delivery line

12 / 30

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

Pushing

Caging

Pulling

Sweeping

13 / 30

What is meant by compounding air brakes?

When the service brake is not working

When the park brake is not working

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

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

14 / 30

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

The supply reservoir

The secondary reservoir

The biggest tank

The primary reservoir

15 / 30

What type of vehicle are safety actuators typically used on?

Large tractor trailers

Dump trucks

Buses and highway coaches

Fire trucks

16 / 30

What is the purpose of the relay valve?

To help apply the brakes quicker

To push air through the lines

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

17 / 30

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

If the compressor is overheating

If the air lines are too thin

If the compressor is too small

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

18 / 30

What's another name for a drain valve?

Drain holes

Drain releases

Drain stems

Drain cocks

19 / 30

What is another name for the foot brake pedal?

Push rod

Treadle

Bar

Thread

20 / 30

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

Yes

Not unless the parking/emergency brake is also applied

Yes, but it will be much longer

21 / 30

When should caging of park brake actually be done?

Only in an emergency

Once you've traveled 160 km during that trip

Every 500 km

Prior to leaving on your daily trip

22 / 30

Where is the relay valve typically installed?

Beside the governor

Right beside the quick release valve

Between the reservoir and the rear brake chambers

In front of the foot valve

23 / 30

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

When air pressure drops below 60 psi

When air pressure drops below 20 psi

When air pressure drops below 80 psi

When air pressure drops below 50 psi

24 / 30

How long have dual air brake systems been in use?

Since 1992

Since early 2000's

Since the mid-1970'

The last ten years

25 / 30

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

Secondary tank first

Both sections are activated

It doesn't matter as long as it works

Primary tank first

26 / 30

What are the problems using the air brakes for parking?

The air will eventually leave the lines

None of the above

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

Not enough air to hold the vehicle

27 / 30

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

Four

Two

Three

One

28 / 30

What does a quick release valve do?

None of the above

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

It stops the flow of air going into the reservoirs

It controls the air flow

29 / 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 woggle

A wig-wag

A mig-mag

30 / 30

How often should you drain reservoirs?

Monthly

Daily

Every 48 hours

Weekly

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BC Air Brake Practice Test 03

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