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BC Air Brake Test 03

When stopping on slippery surfaces with an ABS equipped truck, how should you apply the brake pedal?
a.
b.
c.
d.

Question 1 of 25

In a Type 30 brake chamber, the maximum available stroke is…?
a.
b.
c.
d.

Question 2 of 25

An application pressure gauge shows what?
a.
b.
c.
d.

Question 3 of 25

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

Question 4 of 25

With brakes on the same axle, pushrod travel should be…?
a.
b.
c.
d.

Question 5 of 25

When you want to apply the trailer brakes without applying the tractor brakes, what should you use?
a.
b.
c.
d.

Question 6 of 25

The vast majority of brake failures are caused by what?
a.
b.
c.
d.

Question 7 of 25

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

Question 8 of 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…?
a.
b.
c.
d.

Question 9 of 25

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

Question 10 of 25

Under what circumstances can you use the hand valve for parking?
a.
b.
c.
d.

Question 11 of 25

Alcohol injector systems are designed to prevent…?
a.
b.
c.
d.

Question 12 of 25

If your vehicle is equipped with an air dryer system, you need to drain the reservoirs…?
a.
b.
c.
d.

Question 13 of 25

When checking adjustment, you should wear…?
a.
b.
c.
d.

Question 14 of 25

When using a bobtail proportioning system braking will require…?
a.
b.
c.
d.

Question 15 of 25

Which of these people is ultimately responsible for making sure air brakes are working properly?
a.
b.
c.
d.

Question 16 of 25

The trailer air supply knob on the dashboard will usually be what shape?
a.
b.
c.
d.

Question 17 of 25

On which of these vehicles are you most likely to find air over hydraulic brakes?
a.
b.
c.
d.

Question 18 of 25

Your vehicle will have automatic slack adjusters if it was built later than…?
a.
b.
c.
d.

Question 19 of 25

When the trailer air supply valve is closed, the trailer brakes must…?
a.
b.
c.
d.

Question 20 of 25

Automatic slack adjusters need to be checked…?
a.
b.
c.
d.

Question 21 of 25

Brakes need adjustment if the applied stroke is more than…?
a.
b.
c.
d.

Question 22 of 25

Which of these statements is most accurate regarding poorly adjusted brakes?
a.
b.
c.
d.

Question 23 of 25

By law, you must check the manual and automatic slack adjusters…?
a.
b.
c.
d.

Question 24 of 25

Drum brake linings must be a minimum of what thickness?
a.
b.
c.
d.

Question 25 of 25


 

It is recommended that you take a practice test before you take the actual written test. Please note, however, that this is not the actual test, and you will not receive your license if you pass this sample practice test. If you’re getting your commercial licence, you've come to the right place.

This Air Brake practice test has been prepared by Drivingtest.ca to assist drivers in understanding air brake systems. Taking this practice test and practical instruction will assist drivers in operating 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 licence with an air brake endorsement (code 15). Endorsement code 15 is shown in the “restrictions” section of a driver’s
licence.

In order to successfully prepare, consider utilizing these exams and 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 make your way back into the licence office to take the air brake licence written knowledge test.