BC AIR BRAKE PRACTICE TEST 03

In British Columbia, Canada, the operation of vehicles with air brakes is subject to strict regulations to ensure the safety of road users.

BC Air Brake Test 03

1 / 25

An application pressure gauge shows what?

The pressure in the compressor

The pressure being delivered to the brakes

The pressure in the secondary tank

The pressure in the supply tank

2 / 25

The vast majority of brake failures are caused by what?

Poor driving

Road debris

Mechanical defects

Poor maintenance/checking

3 / 25

If your vehicle is equipped with an air dryer system, you need to drain the reservoirs...?

Never

As often as if the system wasn't there

Less often

More often

4 / 25

Drum brake linings must be a minimum of what thickness?

1/2 inch

1/4 inch

1/16 inch

1/8 inch

5 / 25

Operating a vehicle with an excessive brake chamber pushrod stroke can result in a fine of up to...?

$1,500

$2,500

$1,000

$2,000

6 / 25

If your vehicle has wedge brakes, you will know the automatic adjusters have failed if when the brakes are applied and released the linings move more than...?

1/4 of an inch

1/16 of an inch

1/32 of an inch

1/8 of an inch

7 / 25

Automatic slack adjusters need to be checked...?

More often than manual adjusters

Only during servicing

As often as manual adjusters

Less often than manual adjusters

8 / 25

Which of these statements is most accurate regarding poorly adjusted brakes?

Poorly adjusted brakes will work normally if you increase pedal pressure

You will immediately notice poor adjustment

You may not notice poor adjustment in normal operation

It is safe to use poorly adjusted brakes in normal operation

9 / 25

By law, you must check the manual and automatic slack adjusters...?

Every day

Every two days

Every 1000 miles

Once a week

10 / 25

Your vehicle will have automatic slack adjusters if it was built later than...?

1986

2006

1996

1976

11 / 25

Alcohol injector systems are designed to prevent...?

All of these

Freezing

Rusting

Excessive moisture

12 / 25

When checking adjustment, you should wear...?

Stout clothing

Eye protection

A hard hat

All of these

13 / 25

When the trailer air supply valve is closed, the trailer brakes must...?

Apply 50%

Release fully

Release 75%

Apply fully

14 / 25

In a Type 30 brake chamber, the maximum available stroke is...?

0.5 inches

1.5 inches

3.5 inches

2.5 inches

15 / 25

When you want to apply the trailer brakes without applying the tractor brakes, what should you use?

The hand valve

The foot valve

Any of these

The trailer air supply valve

16 / 25

When using a bobtail proportioning system braking will require...?

Any of these depending on road conditions

Lower than usual pedal pressure

Normal pedal pressure

Higher than usual pedal pressure

17 / 25

When stopping on slippery surfaces with an ABS equipped truck, how should you apply the brake pedal?

With light pressure

With intermittent pressure

With as much pressure as possible

With firm continuous pressure

18 / 25

Brakes need adjustment if the applied stroke is more than...?

2 3/4 inches

1 1/4 inches

2 1/2 inches

1 3/4 inches

19 / 25

If a vehicle is equipped with a tractor parking brake valve, it will usually be what colour?

Yellow button

Red button

Blue button

Green button

20 / 25

With brakes on the same axle, pushrod travel should be...?

High on the right than the left

The same on each side

Any of these

Higher on the left than the right

21 / 25

A tractor with a bobtail proportioning system will reduce the braking pressure to the drive axle brakes by up to...?

75%

10%

25%

50%

22 / 25

On which of these vehicles are you most likely to find air over hydraulic brakes?

A bus

A heavyweight truck

A crane towing vehicle

A heavyweight emergency response vehicle

23 / 25

Which of these people is ultimately responsible for making sure air brakes are working properly?

The vehicle driver

State inspection officials

The company mechanic

The vehicle owner

24 / 25

The trailer air supply knob on the dashboard will usually be what shape?

Octagon

Hexagon

Circle

Square

25 / 25

Under what circumstances can you use the hand valve for parking?

On level ground

If parking temporarily

None of them

If off street

Your score is

Drivers who intend to operate such vehicles must undergo a comprehensive air brake endorsement training program that includes theoretical and practical components. The theory portion covers air brake systems, components, control systems, and ins and outs of coupling and uncoupling trailers. In addition, drivers must pass a written test and complete practical training that includes inspecting air brake systems, testing the low air warning system, and conducting a brake performance test. Failure to comply with these regulations can result in severe penalties and even a driver’s license suspension. Compliance with these regulations ensures that the vehicles equipped with air brake systems are maintained and operated safely, reducing the risk of accidents and ensuring the safety of all road users in British Columbia.

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.