BC Air Brake Practice Test 06

With diligent practice and preparation, individuals can approach their official air brake exam with flying colors and achieve their desired outcome. Remember that knowledge is power, and by dedicating time and effort towards mastering the material, anyone is capable of passing their BC air brake test with excellence.

BC Air Brake Test 06

1 / 30

What do shutoff pressures of the pressure-protection valves vary between?

80 and 110 psi

75 and 100 psi

60 and 90 psi

30 and 50 psi

2 / 30

What happens if the brakes are applied too hard for road conditions, and a wheel lockup occurs?

The rate of the pulsating current will rapidly decrease

The rate of the pulsating current will slowly decrease

The rate of the pulsating current will rapidly increase

The rate of the pulsating current will slowly decrease

3 / 30

What is the most important part of any braking system?

The foundation brakes

The brake lines

The compressor

The reservoirs

4 / 30

Which statement is false? You must not drive the vehicle if...

Pushrod stroke of any brake exceeds the adjustment limit

Low air warning system fails or system is activated

The air loss rate is at the adjustment limit

Air loss rate exceeds prescribed limit

5 / 30

Anti-lock brakes are commonly referred to as...

Automatic pumping

None of the above

The apply-and-release cycle

Threshold braking

6 / 30

Trucks with anti-lock brakes have solenoid valves. What are they often called?

None of the above

Sensors

Modulators

Pressure valves

7 / 30

Where is the This ABS warning light positioned on the trailer?

At the front of the trailer

At the very rear of the trailer

On the top front of the trailer

On the side of the trailer at the rear

8 / 30

To achieve the shortest possible stopping distance on extremely slippery surfaces, what should you do?

Apply and maintain firm continuous pressure on the brake pedal

Gradually apply and maintain moderate continuous pressure on the brake pedal

Slowly increase brake pressure until you stop the vehicle

Apply firm pressure, release it and then apply firm pressure again

9 / 30

What is the most common type of air brake chamber used on trucks and trailers?

Type 30

Type 50

Type 20

Type 10

10 / 30

A long stroke Type 30 is designated as...

Type LS30

Type 30LS

LS30 Type

LS30

11 / 30

If the anti-lock braking system warning light does not work, do the normal air brakes still work?

Yes, but only intermittently

Yes

Only on dry roads

12 / 30

A type 30 chamber has a maximum available stroke of...

3 inches

2 3/4 inches

2 1/2 inches

2 1/4 inches

13 / 30

Which statement is false? Before starting an air brake pre-trip inspection...

Tap the horn

Place transmission in low gear

Make sure you are safe and seen

Block the wheels

14 / 30

How can you tell how much air pressure is in the main reservoirs?

A pressure gauge

There is a lag once the foot valve is pressed

You can feel it through the foot valve

You can't

15 / 30

When the anti-lock brakes pulsate, the pulsating current is monitored by...

An electronic pulsation device

The onboard sensors

An electronic control unit

The actuators

16 / 30

What are pressure-protection valves designed to do?

They're designed to monitor the air supply to any non-essential air-operated accessories

They're designed to monitor the air supply to any essential air-operated accessories

They're designed to cut off the air supply to any non-essential air-operated accessories

They're designed to cut off the air supply to any essential air-operated accessories

17 / 30

Which statement is false? Which vehicles still uses the spring parking brake emergency release system?

Fire trucks

School buses

Dump trucks

Buses

18 / 30

Some vehicles have air pressure gauges to indicate pressure in the reservoirs and the...

Application pressure

Nothing

Compressor

Air-over hydraulics

19 / 30

Is stopping in an emergency with a combination unit, where the tractor and all trailers are ABS-equipped any different?

Yes

Only during slippery conditions

Only when the trailers are loaded

20 / 30

You can't always crawl underneath your vehicle to measure air brake chamber pushrod travel, so what can you do?

Visually check for brake adjustments

None of the above

Listen to the sound from the brakes while braking

Smell the brakes for an odour

21 / 30

Is there any time you should go under the rear of the vehicle to check the air tanks to confirm they are secure, the air lines are tied up and secure?

During the air brake pre-trip inspection

That's what mechanics are for

If you hear any rattle sound while in motion

Never

22 / 30

When should you check to see if the trailer is equipped with anti-lock brakes?

After your first hard stop

After starting the engine to check for the warning light

Before your first hard stop

When coupling the trailer

23 / 30

Are you required to check manual and automatic slack adjusters daily during the pre-trip inspection?

Once a month only

Every week only

Yes

24 / 30

What is the penalty if you're operating a vehicle with brakes that are defective?

A fine up to $2000

The driver is deemed out-of-service

A fine of at least $3500

A warning

25 / 30

Which statement is false? Anti-lock braking systems (ABS) are typically made up of...

Brake releasing or modulation

Speed sensing

Tire pressure

Decision-making

26 / 30

What is meant by slack adjustment?

Adjusting the brakes to keep air chamber pushrod travel within tolerance to ensure that the brakes are effective

Adjusting the brakes to keep air chamber flowing through to ensure that the brakes are effective

None of the above

Adjusting the brakes to keep air chamber filled to ensure that the brakes are effective

27 / 30

Brake failures and runaways that result in crashes are almost never caused by...

The driver

Foundation brakes

An air system failure

None of these

28 / 30

How would the driver know if the trailer's air brake anti-lock braking system is not functioning properly?

There will be a buzzer heard inside the cab

It will have an indicator visible in the tractor's mirror

You don't

There will be a constant beeping heard inside the cab

29 / 30

Are trucks and tractors equipped with a dash mounted failure warning lamp that monitors the ABS system?

Yes

No but can be mounted after-market

Only older vehicles are

30 / 30

Who is ultimately responsible to ensure that the brakes are operating properly before the vehicle is moved?

The carrier

The head of maintenance

The driver

No one in particular

Your score is

BC Air Brake Practice Test 06

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