Illinois CDL Air Brakes Practice Test

Questions mapped to the official Illinois Commercial Driver's License Manual, published by the Illinois Secretary of State. Required for any vehicle equipped with air brakes.

📍 Required for Air Brake Vehicles — IL CDL Manual — 20/25 to Pass
Questions on Real Exam
25
Illinois CDL Manual
Minimum to Pass
20 Correct
80% passing threshold
Practice Questions
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Full module coverage
Test Location
Driver Services Facility
Secretary of State

What the Illinois CDL Air Brakes Test Covers

The real Illinois CDL Air Brakes exam has 25 questions, and you need 20 correct (80%) to pass. Topics tested include:

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Illinois CDL Air Brakes Practice Questions