Free Missouri DMV practice test for your learner's permit — road signs, right-of-way and the rules of the road, with real Missouri knowledge-exam questions.
The Missouri knowledge test is a single 25-question exam covering road signs and the rules of the road together. You need 20 correct (80%) to pass.
Questions and exam format researched against Missouri's official driver handbook and state sources. Last verified 18 August 2026.
Answer: Octagon
STOP signs use the eight-sided octagon shape nationwide, including Missouri.
Road Signs
Answer: 25 mph
Missouri's default speed limit within a city, town, or village is 25 mph unless a different limit is posted.
Speed & Spacing
Answer: From 1/2 hour after sunset until 1/2 hour before sunrise, and any time wipers are needed for weather
Missouri requires headlights from a half hour after sunset to a half hour before sunrise, plus any time you need your wipers running for weather.
MO Laws
Answer: 15
Missouri's instruction permit minimum age is 15.
Teen & Permit Rules
Answer: A full lane width, without a specific numeric feet requirement
Missouri's Guide instructs giving a bicyclist a full lane width when passing, rather than stating a specific numeric feet requirement like some states' '3-foot laws.'
Sharing the Road
Answer: School zone or school crossing
The pentagon shape is reserved for school-zone and school-crossing signs.
Road Signs
Answer: 70 mph
Rural interstates and freeways in Missouri carry a maximum speed limit of 70 mph.
Speed & Spacing
Answer: Always — crossing a solid yellow center line to pass is prohibited
Crossing a solid yellow center line to pass is prohibited in Missouri.
MO Laws
Questions and exam format researched against Missouri's official driver handbook and state sources. Last verified 18 August 2026.
Missouri Driver Guide, official (dor.mo.gov, Revised August 2025), and Missouri DOR Form 899 (violation points table, Rev. 08-2025) — researched and verified 2026-08-18. Exam format: the written knowledge test is officially confirmed as 25 multiple-choice questions requiring 20 correct (80%) to pass. This module uses a unified mock pool (signCount: 0, signPassCount: 0) because that scored written test draws from a single combined question pool with no separate sign-recognition gate. KNOWN SIMPLIFICATION: Missouri's full licensing exam actually has 4 distinct components — vision, the 25-question written test, a SEPARATE pass/fail Road Sign Test, and a driving skills test — but the Driver Guide does not publish how many items are on the Road Sign Test or what score it requires, so this app does not model it as a distinct scored gate; sign-recognition content is instead folded into this module's general rule/sign question pool alongside the shared MUTCD sign codex. Known gaps deliberately NOT invented, per the Guide's own silence: exact Road Sign Test question count/pass threshold; a specific numeric bicycle-passing distance (the Guide says 'full lane width,' not a foot figure, unlike some states' 3-foot laws); specific footage for no-parking near hydrants/intersections/RR crossings/fire stations (Guide only says 'do not block'); a rear-facing-specific car-seat sub-threshold (Missouri combines it into the general under-4/under-40lb bracket); a numeric following-distance behind an emergency vehicle; formal driver's-ed classroom/behind-the-wheel hour requirements (Missouri's only stated requirement is the 40-hour parent/guardian-supervised driving log); a specific distracted-driving statistic; and the base seat-belt-violation fine amount. Re-verify periodically, as DOR handbook content, fees, and point thresholds change over time (Form 899 was itself recently overhauled in August 2025).
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