Iowa DOT Permit Practice Test 16 2026
Based on
2026 IA Driver's Handbook
Instruction: When applying for Iowa Driver's license, applicants must take and successfully pass a knowledge exam. The Iowa Knowledge exam consists of 20 questions. You must score 75% to pass that exam. The following questions are based on the details provided in the IA Driver's Handbook. Please study the manual before taking the test. If you need additional information, please contact your local DMV office. You can find your nearest DMV office at Iowa DOT locations.
2. Roads become very slippery:
A
When it has been raining for an hour or more
B
The day after it rains
C
For the first 10 to 15 minutes of a rain storm
D
Right after the rain has stopped