2025 Iowa Permit Test 13
The following questions are from real DMV written tests. These are some of the actual permit questions you will face in Iowa. Each permit practice test question has three answer choices. Select one answer for each question and select "grade this section." You can find this button at the bottom of the drivers license quiz. For a complete list of questions and answers for Iowa please visit https://cheat-sheets.dmv-written-test.com/en/iowa/car.
Number of Tests
Number of Question
Passing Score
1. Work zone barriers, drums, cones, and signs are used to:
Explanation
Work zones on highways have become increasingly dangerous places for both workers and drivers. When approaching a work zone, watch for materials such as cones, barrels, signs, large vehicles, and workers in brightly colored vests to warn you and direct you.
2. A leaky exhaust system in your vehicle is dangerous because it can cause:
Explanation
The exhaust system carries exhaust gas out of the vehicle and prevents fumes from entering into the passenger compartment. To prevent carbon monoxide poisoning, keep your exhaust system free of leaks. Replace all defective parts immediately.
3. If your car becomes disabled while on the highway, you should:
Explanation
If your vehicle becomes disabled, you must (if possible) park with all four wheels off of the main-traveled portion of the road.
4. Which of the following is true about driving on a wet roadway?
Explanation
The faster you drive on a wet roadway, the less effective your tires will be at wiping the water from the road. If your speed becomes excessive enough, your tires will lose their grip on the road entirely and you will begin to hydroplane (that is, to slide down the road on a film of water).
5. A person who drives much slower than the speed limit:
Explanation
Driving more slowly than the flow of traffic can be hazardous. If you are on a two-lane, two-way road and driving so slowly that traffic is backing up behind you, you are required to pull off the road and let the other vehicles pass. Only drive significantly under the speed limit when conditions require it.
6. Another driver is trying to pass your car. You should:
Explanation
Keep right when another driver begins to pass you on the left. Check for oncoming traffic and adjust your speed to let the passing vehicle move back into the right lane as easily as possible.
7. Two solid white lines painted across a traffic lane show the boundaries of a crosswalk. As a driver, you should know that:
Explanation
Crosswalk lines show pedestrians where to safely cross a road or street. Crosswalks may be marked by horizontal lines, vertical lines, or a combination of the two. You must always stop for pedestrians who are in a crosswalk.
8. If you are driving so slowly that traffic is backing up behind you, you should:
Explanation
