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's another name for a drain valve?

Drain holes

Drain stems

Drain releases

Drain cocks

2 / 30

What is the purpose of a dual air brake system?

Works better with tandem wheels

They are in all new vehicles

No advantage whatsoever

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

3 / 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 woggle

A mig-mag

4 / 30

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

When air pressure drops below 50 psi

When air pressure drops below 20 psi

When air pressure drops below 60 psi

When air pressure drops below 80 psi

5 / 30

What is another name for the foot brake pedal?

Thread

Treadle

Bar

Push rod

6 / 30

What is meant by compounding air brakes?

When the service brake is not working

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

When the park brake is not working

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

7 / 30

Where is the relay valve typically installed?

Right beside the quick release valve

Beside the governor

In front of the foot valve

Between the reservoir and the rear brake chambers

8 / 30

What happens when the driver releases the foot valve?

None of the above

Air pressure in the brake lines remains constant

Air pressure build back up

Air pressure in the brake chambers exhausts into the atmosphere

9 / 30

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

Three

One

Two

Four

10 / 30

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

Caging

Sweeping

Pushing

Pulling

11 / 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

12 / 30

What are the problems using the air brakes for parking?

None of the above

The air will eventually leave the lines

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

Not enough air to hold the vehicle

13 / 30

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

The hydraulic parking brake

The cable parking brake

The spring parking brake

The air parking brake

14 / 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

15 / 30

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

Both sections are activated

Primary tank first

Secondary tank first

It doesn't matter as long as it works

16 / 30

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

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

If the compressor is overheating

If the air lines are too thin

17 / 30

What do one-way check valves do?

They allow air to be exhausted through ports

None of the above

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

They allow air to flow in both directions

18 / 30

What does a quick release valve do?

It controls the air flow

It stops the flow of air going into the reservoirs

None of the above

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

19 / 30

What type of vehicle are safety actuators typically used on?

Dump trucks

Fire trucks

Large tractor trailers

Buses and highway coaches

20 / 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

Yes, but it will be much longer

21 / 30

How often should you drain reservoirs?

Every 48 hours

Weekly

Monthly

Daily

22 / 30

What is the purpose of the relay valve?

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

To relay computerized messages from the brakes to the gauges

To help apply the brakes quicker

To push air through the lines

23 / 30

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

Governor line

Discharge line

Delivery line

Supply line

24 / 30

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

The supply reservoir

The secondary reservoir

The primary reservoir

The biggest tank

25 / 30

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

Supply reservoir only but use for psi and kPa

Primary and secondary reservoirs

Supply and primary reservoir

Supply reservoir and secondary reservoirs

26 / 30

How long have dual air brake systems been in use?

Since 1992

The last ten years

Since the mid-1970'

Since early 2000's

27 / 30

Which reservoir usually has the most contaminants in it?

The secondary reservoir

The primary reservoir

They all have the same amount

The supply reservoir

28 / 30

When should caging of park brake actually be done?

Once you've traveled 160 km during that trip

Every 500 km

Only in an emergency

Prior to leaving on your daily trip

29 / 30

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

To the rear axle brakes

To both front and rear axle brakes

To whichever brakes need to be applied first

To the front axle brakes

30 / 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

Your score is

BC Air Brake Practice Test 03

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