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Québec Air Brake Practice Test

Québec: mention F

Updated for 2026 · 40 air brake questions of 344 across the full Québec commercial path · Aligned to the commercial driver's manual · See the commercial path

Start with General Knowledge first. We recommend completing it before drilling air brake questions.

Go to General Knowledge →

Removes the air brake restriction. Required for most heavy trucks and buses.

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2 tests, each drawing from a different pool. Take them all to cover the full 40 questions.

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15 random questions from the pool. Try it free.

15 questions · 80% to pass

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Full coveragePRO40 questions covering the full bank. Take when you're ready.40 questions · 80% to passUnlock
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~26%Sample score

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About the Québec Air Brake test

Air brakes work on the opposite principle from the hydraulic brakes on a car. Air pressure holds the spring-loaded brakes off, so if the system loses air the springs apply the brakes automatically: the design fails safe. Because nearly every heavy commercial vehicle uses air brakes, this qualification is essential in practice, even though it appears as a separate result on your licence.

The knowledge test covers governor cut-in and cut-out pressure (typically about 100 to 125 psi), the low-air warning threshold (around 55 to 60 psi), the pressure at which the spring brakes apply (around 20 to 45 psi), slack-adjuster inspection, and the daily leak-down test. Most provinces require both a written test and a hands-on practical demonstration.

Québec Air Brake Practice Test 2026 · Drive IQ Canada | Drive IQ Canada