Everything you need to pass the Illinois knowledge test — car, motorcycle, and CDL. Free practice included.
License type
Select your license type to see test requirements and available study materials.
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Great study material.
S.SPractice Test
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Very useful material
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About the Illinois SOS
Agency
SOS
Languages offered
4
Retake wait
0 days
Test fee
$20
Minimum age
15
The Illinois SOS knowledge test has 35 questions. You need to answer 28 correctly (80%) to pass. The test is administered by the Illinois SOS. Questions cover traffic laws, road signs, right-of-way rules, and safe driving practices specific to Illinois. If you don't pass, you can retest after 0 days.
The Illinois motorcycle permit test has 15 questions. You need to answer 12 correctly (80%) to pass. Questions cover riding techniques, road rules, gear requirements, and safe riding practices specific to Illinois.
The Illinois CDL knowledge exam covers general knowledge plus any endorsements you're pursuing — air brakes, combination vehicles, HazMat, tank vehicles, doubles/triples, passenger, and school bus. Each section is scored separately, and you must pass every section required for your license class and endorsements. Our practice tests mirror the real exam's format and difficulty, so there are no surprises on test day.
What trips people up
Based on questions Illinois drivers get wrong most often.
Struggling with these? The Illinois Cheat Sheet covers all of them →
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