Free Iowa DMV practice test with 40+ real questions and detailed explanations. The Iowa DOT written exam has 35 questions — pass with 80%. Updated for 2026.
The Iowa DOT written knowledge test has 35 multiple-choice questions. You need to score 80% or higher (28 of 35 correct) to pass and receive your learner's permit. The minimum age to apply is 14 years, and the permit fee is $8. Iowa allows learner's permits at age 14, among the youngest minimum ages in the country.
The Iowa DOT knowledge exam tests your understanding of Iowa traffic laws, road signs, and safe driving practices. DriveAce covers every topic you'll encounter on test day.
Stop signs, yield signs, warning signs, traffic signals, and regulatory signs tested on the Iowa DMV exam.
Intersections, roundabouts, pedestrians, emergency vehicles, and school buses — all covered in Iowa traffic law.
Residential, highway, school zones, and construction zones as defined by Iowa law.
BAC limits, implied consent, penalties, and zero-tolerance policies specific to Iowa.
Hydrant distances, hill parking, handicap spaces, and no-parking zones under Iowa regulations.
Following distance, winter driving, night driving, and emergency procedures tested by the Iowa DOT.
The Iowa DOT knowledge test has 35 multiple-choice questions. You need to answer 28 correctly (80%) to pass. DriveAce provides 40+ practice questions that mirror the real exam topics and format.
You need to score 80% to pass the Iowa DMV written test. That means answering at least 28 out of 35 questions correctly. If you fail, you can retake the test after a waiting period set by the Iowa DOT.
Yes — DriveAce offers 20 free practice questions for Iowa. These cover the same topics as the real Iowa DOT exam: road signs, right-of-way rules, speed limits, and Iowa-specific traffic laws. Full access to all 40+ questions is available for a one-time $19.99 fee.
The Iowa DOT knowledge test covers road signs and signals, right-of-way rules, speed limits (residential, highway, school zones), parking regulations, DUI/DWI laws (BAC limits, implied consent), and Iowa-specific traffic laws. DriveAce organizes practice questions by topic so you can focus on your weak areas.
You must be at least 14 years old to apply for a learner's permit in Iowa. The permit fee is $8. After passing the written test, you'll receive your learner's permit and can begin supervised driving practice.
Join thousands of drivers who passed their Iowa written permit test on the first try with DriveAce. No subscription. No ads. Just the knowledge you need.
Start Free Practice Test →$19.99 one-time for full access. 20 free questions included.