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

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

Dangerous

All of these

Unreliable

Illegal

2 / 25

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

White

Blue

Red

Black

3 / 25

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

20 psi

10 psi

15 psi

25 psi

4 / 25

The couplers between tractor and trailer are known as what?

Third hands

No hands

Extra hands

Glad hands

5 / 25

Before manually releasing spring brakes, you should do what?

Pressurise the air system

Turn on the engine

Chock the wheels

Attach the vehicle to a tow truck

6 / 25

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

The brake chamber has two springs

The parking brakes operate automatically

The brake chamber has two diaphragms

The brake chamber operates hydraulically

7 / 25

An alternative name for the supply line is what?

Secondary line

Emergency line

Primary line

Service line

8 / 25

Spring parking brakes are mounted where on a tractor?

On the rear and steering axles

Any of these

On the steering axles

On the rear axles

9 / 25

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

Spring balancer

Service brake balancer

Spring brake modulator

Service brake modulator

10 / 25

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

Red

Green

Yellow

Blue

11 / 25

Compounding brakes means what?

Secondary and primary systems applying together

Any of these

Parking brakes and service brakes applying alternately

Parking brakes and service brakes applying together

12 / 25

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

20 minutes

15 minutes

5 minutes

10 minutes

13 / 25

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

A compressor

Foundation brakes

Control valves

Air reservoirs

14 / 25

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

All of these

The trailer service brakes are locked

The foot valve feels spongy

The spring parking brakes won’t release

15 / 25

Spring parking brakes are kept off by...?

Air pressure

Drive force

Any of these

Spring pressure

16 / 25

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

5 - 10 psi

10 - 20 psi

20 - 45 psi

45 - 60 psi

17 / 25

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

Stopping distance will remain the same

Stopping distance will decrease

Stopping will become impossible

Stopping distance will increase

18 / 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

Blocked with rags

Connected to each other

Secured upright

19 / 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

20 / 25

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

Service line

Supply line

Emergency line

Primary line

21 / 25

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

Directly from the compressor

Each tank alternately

The tank with the lowest pressure

The tank with the highest pressure

22 / 25

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

Green

Yellow

Red

Blue

23 / 25

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

8 psi

10 psi

6 psi

4 psi

24 / 25

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

If air pressure rises

When going downhill

If the vehicle starts to skid

If air pressure drops

25 / 25

Releasing a spring parking brake manually is known as what?

Forcing

Caging

Boxing

Unlocking

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.