Air brake systems are an essential safety feature for heavy commercial vehicles such as trucks and buses. In Quebec, Canada, air brakes are regulated under the Quebec Highway Safety Code.


Quebec Air Brake Test 02

1 / 25

When checking brake adjustments, you should check...?

2 / 25

When using anti-lock brakes, you have to get used to...?

3 / 25

When the brakes are on, the angle between the slack adjuster and the pushrod should be what?

4 / 25

The emergency brake will come on automatically when the air pressure in the service brake system drops below...?

5 / 25

An air brake system can go from a pressure loss to emergency braking within...?

6 / 25

Which of these lessens the effect of brake lag?

7 / 25

The only certain method of checking brake adjustment is what?

8 / 25

If your brakes have automatic slack adjusters, they have to be checked...?

9 / 25

When you double your speed, the amount of braking power required for the same stopping distance as your initial speed is...?

10 / 25

Which of these can cause a drop in air pressure?

11 / 25

Retarders and engine brakes will not work until...?

12 / 25

Hydrodynamic retarders work using what?

13 / 25

The emergency brakes can be activated by doing what?

14 / 25

When unloaded, a vehicle can stop in 20 m from 20 km/h. If the weight of the vehicle is doubled, how far will it need to stop from 40 km/h with the same brake pressure?

15 / 25

When adjusting brakes, the vehicle should...?

16 / 25

If the weight of your load doubles the weight of your vehicle, the stopping distance for the same brake pressure will be...?

17 / 25

When you have adjusted the brake linings so that they hug the drum snugly, you should back the adjusting bolt off by...?

18 / 25

Supplemental brakes always work on which wheels?

19 / 25

When checking brake adjustment, the air pressure gauge must read over what?

20 / 25

Compared to hydraulic brakes, air brakes react...?

21 / 25

Brake fade is caused by what?

22 / 25

Which of these factors influence braking performance?

23 / 25

You're travelling at 90 km an hour and your brake system has a lag of half a second. How far will your vehicle travel in the time between you pressing the brake pedal and the brakes engaging?

24 / 25

In a manual transmission vehicle, the brakes should be checked with the transmission in what gear?

25 / 25

Brakes need adjusting if the pushrod travel is more than what?

Your score is


To ensure that drivers operating commercial vehicles equipped with air brakes are correctly trained and qualified, they must pass an Air Brake Endorsement Test. This exam covers various topics related to air brakes, including the principles, components, and operation of air brake systems. Drivers must comprehensively understand air brake functioning and maintenance to ensure they can respond appropriately in emergencies. In Quebec, air brakes are subject to regular inspections, and violations of air brake regulations can result in significant fines and penalties. Overall, air brake safety measures in Quebec are vital for ensuring the safety of all those on the road. 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 Quebec air brake F endorsement. To operate vehicles equipped with air brakes on a highway (other than a vehicle defined as a construction vehicle), you must have a Quebec driver’s license with an air brake F endorsement.

To successfully prepare, consider utilizing these exams and the official Quebec “driving a heavy vehicle” manual (chapter 4) 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.