BC AIR BRAKE PRACTICE TEST 02

Air brakes are an essential safety feature in commercial vehicles, especially those carrying heavy loads. In British Columbia, Canada, air brakes are required on vehicles such as semi-trailers, buses, and other vehicles that weigh over 11,794 kilograms.

BC Air Brake Test 02

1 / 25

In colour-coded systems, which colour is used to indicate the control line?

Blue

Red

Green

Yellow

2 / 25

Spring parking brakes are mounted where on a tractor?

Any of these

On the rear axles

On the rear and steering axles

On the steering axles

3 / 25

Which of these balances pressure between the service brakes and the spring parking brakes?

Spring balancer

Service brake modulator

Service brake balancer

Spring brake modulator

4 / 25

Spring parking brakes are kept off by...?

Any of these

Spring pressure

Air pressure

Drive force

5 / 25

Safety actuator parking brakes will not release if more than how much air has been lost from the parking reservoir?

10 psi

4 psi

8 psi

6 psi

6 / 25

In dual air brake systems using blended air, the parking brake will take air from...?

Directly from the compressor

The tank with the highest pressure

The tank with the lowest pressure

Each tank alternately

7 / 25

Releasing a spring parking brake manually is known as what?

Caging

Forcing

Boxing

Unlocking

8 / 25

Which of these is a sign that you may have reversed the supply line and service line connections?

The foot valve feels spongy

The trailer service brakes are locked

All of these

The spring parking brakes won’t release

9 / 25

Compounding brakes means what?

Secondary and primary systems applying together

Parking brakes and service brakes applying alternately

Parking brakes and service brakes applying together

Any of these

10 / 25

Spring parking brakes will come on when applied by the driver and...?

If air pressure drops

When going downhill

If air pressure rises

If the vehicle starts to skid

11 / 25

What force does the coil spring in spring parking brake chambers exert?

1500 - 2000 lbs

2500 - 3000 lbs

1000 - 1500 lbs

2000 - 2500 lbs

12 / 25

The couplers between tractor and trailer are known as what?

Glad hands

Extra hands

Third hands

No hands

13 / 25

On a dual airbrake system, if the primary system fails which of these applies?

Stopping distance will remain the same

Stopping distance will increase

Stopping distance will decrease

Stopping will become impossible

14 / 25

The parking brake control valve on the dashboard is usually which colour?

Yellow

Blue

Red

Green

15 / 25

When not in use, glad hand couplers should be blocked with dead-end couplers or if these are not available they should be...?

Left venting air

Secured upright

Connected to each other

Blocked with rags

16 / 25

If your system is colour-coded, the supply line will be what colour?

Blue

Red

White

Black

17 / 25

Using foundation brakes to hold the vehicle when parked is...?

Illegal

Dangerous

Unreliable

All of these

18 / 25

When trailer brakes 'dynamite' they will remain applied for how long?

20 minutes

5 minutes

10 minutes

15 minutes

19 / 25

The chief difference between a trailer air brake system compared to the tractor is that the trailer will not have...?

Control valves

A compressor

Foundation brakes

Air reservoirs

20 / 25

An alternative name for the supply line is what?

Emergency line

Service line

Secondary line

Primary line

21 / 25

Before manually releasing spring brakes, you should do what?

Turn on the engine

Attach the vehicle to a tow truck

Chock the wheels

Pressurise the air system

22 / 25

How are safety actuator parking brakes different from normal brake systems?

The parking brakes operate automatically

The brake chamber has two springs

The brake chamber has two diaphragms

The brake chamber operates hydraulically

23 / 25

Which of these is an alternative name for the control line?

Service line

Primary line

Supply line

Emergency line

24 / 25

The trailer air supply valve must close if the tractor pressure drops below...?

20 psi

15 psi

10 psi

25 psi

25 / 25

Spring parking brakes will fully apply if air pressure drops to what level?

5 - 10 psi

20 - 45 psi

45 - 60 psi

10 - 20 psi

Your score is

The province mandates that all drivers of vehicles equipped with air brakes must possess an air brake endorsement on their license. This endorsement requires drivers to take a written and practical examination to demonstrate their knowledge and skills. The practical exam includes tasks such as conducting pre-trip inspections, performing brake tests, and identifying and correcting brake system defects. This strict regulation ensures that only trained professionals operate vehicles equipped with air brakes, minimizing the risk of accidents and injuries. In addition, commercial vehicle operators in British Columbia are subject to regular inspection and maintenance requirements to ensure their vehicles’ safe operation further. Overall, the province’s focus on promoting air brake safety helps to protect both drivers and the public on the roads.

Drivingtest.ca has prepared this Air Brake practice test to assist drivers in understanding air brake systems. This practice test and practical instruction will help drivers operate air brake-equipped vehicles before and after obtaining their BC air brake endorsement. To operate vehicles equipped with air brakes on a highway (other than a vehicle defined as a construction vehicle), you must have a B.C. driver’s license with an air brake endorsement (code 15). Endorsement code 15 is shown in the “restrictions” section of a driver’s
license.

To successfully prepare, consider utilizing these exams and the official BC “driving commercial vehicles -a Guide for professional drivers” to your advantage. The more knowledge you can attain, the better it will be for you once you decide to return to the license office to take the air brake license written knowledge test.