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Free Iowa DMV practice tests

Free practice tests for the Iowa written knowledge exam — choose a test to begin. No sign-up required.

505 practice questions in total · 35 study topics

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Learning path

Learn the material topic by topic, then prove it in challenges — free, no sign-up.

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Car / Permit

152 practice questions in total · 11 study topics

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Motorcycle

154 practice questions in total · 11 study topics

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CDL — General Knowledge

149 practice questions in total · 11 study topics

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CDL — Air Brakes

50 practice questions in total · 2 study topics

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What's on the Iowa written tests

Every test below follows the format published by the Iowa DOT Motor Vehicle Division; we publish 505 practice questions across the 4 Iowa tests here.

  • Car / Permit — the Iowa DOT Motor Vehicle Division's test has ~25 questions and you need ~20 correct (~80%).
  • Motorcycle — the Iowa DOT Motor Vehicle Division's test has ~25 questions and you need ~20 correct (~80%).
  • CDL — General Knowledge — the Iowa DOT Motor Vehicle Division's test has ~50 questions and you need ~40 correct (80%).
  • CDL — Air Brakes — the Iowa DOT Motor Vehicle Division's test has ~25 questions and you need ~20 correct (80%).

These formats come from the Iowa exam rules the Iowa DOT Motor Vehicle Division publishes — always confirm current details before you book a test.

Study Iowa topics

Every Iowa topic with a full question set, each one explained and cited to the official handbook.

CDL — Air Brakes — 2 topics with a full question set, 36 questions

Official Iowa sources

Our Iowa questions are written from the handbooks the Iowa DOT Motor Vehicle Division publishes.

Iowa Department of Transportation, Motor Vehicle Division — the official Iowa licensing siteCar / Permit: the Iowa handbook from the Iowa DOT Motor Vehicle DivisionMotorcycle: the Iowa handbook from the Iowa DOT Motor Vehicle DivisionCDL — General Knowledge: the Iowa handbook from the Iowa DOT Motor Vehicle Division