When moving to Iowa you must apply for an Iowa license. If you have an out-of-state license valid for the same driving privilege you are applying for in Iowa, the knowledge and driving tests are usually waived.
The purpose of the Iowa knowledge exam is to verify how well you know and understand highway signs and Iowa traffic laws.
Iowa DOT offers computer-based tests for both permits and driver's licenses. A traditional written test on paper may still be available in some locations. While the number of questions on the tests may vary, the test a new learner's permit has 35 questions. 20 questions address traffic laws and safe driving techniques. Remaining 15 questions are about signs, signals, and markings.
Start by getting the latest version of the Iowa Driver's Manual. Since all questions on your permit test are based on the material in this manual, you should get familiar with all areas in the manual. Pay special attention to facts that are highlighted or emphasized.
Do not rush through this important preparation. Start studying two or three weeks before the real test. The more time you give yourself - the better.
When you feel comfortable with the contents of the manual, take several permit practice tests to make sure you are ready for the real examination.
Each test for an Iowa driver's license or learner's permit has 25 questions. If you answer at least 20 questions correctly, you reach the state's passing score (80%). To be sure you will pass the real knowledge test, you should aim for a score of 92% or more. This leaves little room for errors and you will most likely pass with ease.
All questions are multiple-choice or true/false. Only one choice is correct and the best answer.