How Many Questions Are on the Missouri Permit Test?
Missouri's instruction permit process isn't a single test — it's two separate ones: a 25-question written knowledge test and a distinct 16-question road-sign test, each requiring roughly 80% to pass.
Two tests, not one
The 25-question written test covers Missouri traffic laws, safe driving, alcohol and drug rules, distracted driving, and basic vehicle operation from the Missouri Driver Guide.
The 16-question road-sign test is a separate assessment focused entirely on recognizing standard road signs by shape and color.
Both tests are administered by the Missouri State Highway Patrol at a driver examination station, not by the Department of Revenue directly.
Why the two-test structure matters for studying
Because the sign test is scored independently, weak sign recognition can't be offset by a strong score on the rules test, or vice versa — both need real preparation.
Our free Missouri permit practice tests include a dedicated set of sign-recognition questions alongside the broader rules content, so you can see exactly where more review is needed.
How our practice tests are structured
Rather than mirroring the exact 25-plus-16 format, dmvwrittenexam.com splits its 145 original Missouri permit questions into multiple 25-question practice tests, giving far more repetitions than the official tests alone.
Each question includes an explanation and a source reference, so you learn why an answer is correct instead of just memorizing a letter.
Frequently Asked Questions
Do I take one combined test or two separate ones?
Two separate ones: a 25-question written knowledge test and a 16-question road-sign test, each scored on its own.
Who actually administers these tests?
The Missouri State Highway Patrol, at a driver examination station — not the Department of Revenue office itself, even though the DOR issues the permit.
Can I retake just the test I failed?
Retake policies are set by the Missouri State Highway Patrol and can change. Confirm current rules on the official Missouri DOR website before your appointment.
Ready to put this into practice?
Start a free Missouri permit practice testLast reviewed: 2026-07-21