Illinois CDL General Knowledge Practice Test

Questions mapped to the official Illinois Commercial Driver's License Manual, published by the Illinois Secretary of State. Full rationale on every answer.

📍 Required for All CDL Classes — IL CDL Manual — 40/50 to Pass
Questions on Real Exam
50
Illinois CDL Manual
Minimum to Pass
40 Correct
80% passing threshold
Practice Questions
Loading...
Full module coverage
Test Location
Driver Services Facility
Secretary of State

What the Illinois CDL General Knowledge Test Covers

The real Illinois CDL General Knowledge exam has 50 questions, and you need 40 correct (80%) to pass. Topics tested include:

Filter:

Illinois CDL General Knowledge Practice Questions