Applicants must pass a knowledge exam in order to obtain an Arizona driver's license. The DMV written test includes questions on road rules, road signs, traffic laws, and safe driving practices, as well as information from the Arizona DMV Driver License Manual. There are 30 questions on the written test for the AZ DMV. You must correctly answer at least 24 questions (80%) on the AZ DMV test to pass. Practice with our Arizona permit test to familiarize yourself with the format of the Arizona DMV driver's license test.