BC Air Brake Practice Test 01

To start preparing, utilize the many study materials available online, including resources such as practice tests, diagrams, and instructional videos. This will help you gain a comprehensive understanding of the key components of air brake systems, such as the compressor, air tanks, and brake valves.

BC Air Brake Test 01

1 / 30

Air brakes are used as an alternative to which type of brakes?

Disc brakes

Cable brakes

Hydraulic brakes

Manual brakes

2 / 30

What causes the pushrod to extend out of the brake chamber?

The force coming from the depressed pedal

The force of the compressed air against the diaphragm

The slack adjuster

Mechanical force

3 / 30

What would you need to do to maintain the same braking force as brake fade increases?

Apply more pressure

Use the secondary reservoir

Use the parking brake

Pump the brakes

4 / 30

What's the purpose of the air brake chamber?

It compresses the air

It stores the condensed air

It moves the air into the brake lines

It converts the force of compressed air into a strong mechanical force through the pushrod and slack adjuster

5 / 30

Which brake system uses a much greater force to apply the brakes?

Air brakes

Cable brakes

Manual brakes

Hydraulic brakes

6 / 30

When does the compressor produce air?

Once the release valve is closed

Prior to starting the engine

Once you turn on the compressor

As long as the engine is running

7 / 30

At what angle is the position of the slack adjuster to the pushrod?

45 degrees

90 degrees

135 degrees

75 degrees

8 / 30

Are air brakes more tolerant to small leaks?

Yes

Only while parked

At low speeds only

9 / 30

What is not a type of automatic slack adjustor?

Haldex

Granite

Crewson Brunner

Rockwell

10 / 30

What is compressed air?

Air that can be compressed or squeezed into a much smaller space than it would normally occupy

None of the above

Where a cylinder uses less air than originally required

Air that is treated before being used

11 / 30

What is referred to as brake fade?

None of the above

When there is a gap in the air lines

When your brakes stop working properly because they're overheated

When the brakes build up pressure to help you stop

12 / 30

What is a delivery line?

It delivers air to the reservoir

It delivers air to the discharge valve

It delivers air to the foot valve

It delivers air to the foundation brakes

13 / 30

Why have air brakes?

They can all be retrofitted on any vehicle

They are capable of stopping heavy commercial vehicles safely

None of the above

They are the only system that uses anti-lock brake systems

14 / 30

To prevent the compressor from overheating, what's the most common method used on heavy trucks?

To circulate engine coolant through the compressor

To circulate cold water through the compressor

Pulling over periodically to cool it down

Air fins on the side of the compressor will catch air while the vehicle is in motion to help cool it down

15 / 30

Which statement is false? The diaphragm construction is similar to a tire sidewall, consisting of a reinforced fabric core with a rubber coating with other main parts of...

Return spring

Pushrod

Camshaft

Plate assembly

16 / 30

Through force multiplication, 100 psi of air pressure produces a pushrod force at how many pounds?

2500

1500

2000

3000

17 / 30

What is referred to as brake lag time?

The time it takes to move from the accelerator to the brake pedal

When the air reaches the wheel and applies the brake

The time between seeing the problem to responding

None of the above

18 / 30

Are air chambers made in different sizes?

Yes

No, unless the heat makes them swell

No, unless it's not an OEM part

19 / 30

As the piston moves down in the cylinder of the compressor, what does it create?

Force

None of the above

Power

A vacuum

20 / 30

What is not part of the air brake chamber?

Pushrod

Camshaft

Plate assembly

Return spring

21 / 30

How are long stroke brake chambers identified?

By their slotted-shaped inlet ports

By their square-shaped inlet ports

By their circle-shaped inlet ports

They all look the same

22 / 30

What is The typical brake lag time from when you apply the brake pedal (foot valve) to when the air reaches the wheel and applies the brake?

Approximately 1 1/2 seconds

Approximately one full second

Approximately 2 full seconds

Approximately 4/10 of a second

23 / 30

What is referred to as the foundation brake?

It refers to the mechanical parts of the brake system inside the wheel

It refers to how the brakes are attached to the hub

None of the above

It refers to the base of the brake system

24 / 30

What is considered a long stroke brake chamber?

It's a stroke that takes longer to complete

It has a longer pushrod stroke than the pushrod of a standard brake chamber

It has a longer pushrod but in a standard brake chamber

None of the above

25 / 30

If a compressor pumps the air, what controls the compressor?

The governor

The reservoir

The supply line

The discharge line

26 / 30

Squeezing air into a smaller space increases what?

Provides more air for braking

None of the above

Saves time

The air's resistance

27 / 30

What is used to measure if the brake is within adjustment tolerance

Nothing

A socket wrench

An air brake slack adjuster

Dipstick

28 / 30

The force generated at the wheel to stop is a lot more than...

The force you apply when pushing down on the brake pedal

The force the pads have against the drums

None of the above

The force the pads have against the rotors

29 / 30

What does air resistance create?

Pressure

Power

Backflow

Heat

30 / 30

Can brake drums expand and move away from the shoes?

Only with buses

Only on smaller vehicles

Yes

Your score is

BC Air Brake Practice Test 01

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