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

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

It doesn't matter as long as it works

Primary tank first

Both sections are activated

Secondary tank first

2 / 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

3 / 30

What's another name for a drain valve?

Drain holes

Drain cocks

Drain releases

Drain stems

4 / 30

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

None of the above

Keep going but allow five times more to stop

Pull over and stop

Allow the compressor to build up more air before you stop

5 / 30

Where is the relay valve typically installed?

In front of the foot valve

Right beside the quick release valve

Between the reservoir and the rear brake chambers

Beside the governor

6 / 30

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

If the compressor is overheating

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

7 / 30

When should caging of park brake actually be done?

Once you've traveled 160 km during that trip

Only in an emergency

Prior to leaving on your daily trip

Every 500 km

8 / 30

What is another name for the foot brake pedal?

Thread

Push rod

Bar

Treadle

9 / 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

It controls the air flow

None of the above

It stops the flow of air going into the reservoirs

10 / 30

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

Four

One

Three

Two

11 / 30

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

To the front axle brakes

To whichever brakes need to be applied first

To both front and rear axle brakes

To the rear axle brakes

12 / 30

Which reservoir usually has the most contaminants in it?

They all have the same amount

The secondary reservoir

The supply reservoir

The primary reservoir

13 / 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

14 / 30

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

The spring parking brake

The cable parking brake

The hydraulic parking brake

The air parking brake

15 / 30

How long have dual air brake systems been in use?

Since early 2000's

Since 1992

The last ten years

Since the mid-1970'

16 / 30

What is meant by compounding air brakes?

When the park brake is not working

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

When the service brake is not working

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

17 / 30

How often should you drain reservoirs?

Daily

Monthly

Weekly

Every 48 hours

18 / 30

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

Sweeping

Pushing

Pulling

Caging

19 / 30

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

Supply reservoir and secondary reservoirs

Primary and secondary reservoirs

Supply and primary reservoir

Supply reservoir only but use for psi and kPa

20 / 30

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

The supply reservoir

The primary reservoir

The secondary reservoir

The biggest tank

21 / 30

What do one-way check valves do?

They allow air to flow in both directions

None of the above

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

They allow air to be exhausted through ports

22 / 30

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

None of the above

Air-over hydraulic

Cable

Safety actuator

23 / 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 woggle

A toggle

A mig-mag

A wig-wag

24 / 30

What type of vehicle are safety actuators typically used on?

Fire trucks

Dump trucks

Buses and highway coaches

Large tractor trailers

25 / 30

What happens when the driver releases the foot valve?

None of the above

Air pressure build back up

Air pressure in the brake chambers exhausts into the atmosphere

Air pressure in the brake lines remains constant

26 / 30

What are the problems using the air brakes for parking?

Not enough air to hold the vehicle

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

The air will eventually leave the lines

None of the above

27 / 30

What is the purpose of a dual air brake system?

No advantage whatsoever

Works better with tandem wheels

They are in all new vehicles

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

28 / 30

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

When air pressure drops below 50 psi

When air pressure drops below 80 psi

When air pressure drops below 20 psi

When air pressure drops below 60 psi

29 / 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 push air through the lines

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

30 / 30

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

Yes, but it will be much longer

Yes

Not unless the parking/emergency brake is also applied

Your score is

BC Air Brake Practice Test 03

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