2025 Illinois Permit Test 15
The following questions are from real DMV written tests. These are some of the actual permit questions you will face in Illinois. 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 Illinois please visit https://staging.dmvwrittentest.cheat-sheets.com/en/illinois/car.
Number of Tests
Number of Question
Passing Score
13. If you approach a traffic light with a red signal and a police officer directs you to go through the intersection without stopping, you should:
Explanation
Instructions given by police officers directing traffic always override posted traffic signals and signs. Follow the officer's instructions.
14. This red and white sign means you should:
Explanation
A three-sided yield sign indicates that you must slow down and be ready to stop, if necessary, to let any vehicle, bicyclist, or pedestrian pass before you proceed. In this case, you do not have the right-of-way.
15. The best way to avoid a dangerous situation while driving is to:
Explanation
Always be aware of what is happening around your vehicle. Constantly observing your surroundings to the front, sides, and rear of your vehicle will help you see problems that may require you to change speed or roadway position.
16. It is illegal for a person 21 years of age or older to drive with a minimum blood alcohol concentration (BAC) of:
Explanation
For drivers age 21 or older, it is illegal to operate a motor vehicle with a blood alcohol concentration (BAC) of 0.08 percent or higher. Driving while under the influence of alcohol is not only illegal, but dangerous.
17. Hydroplaning occurs when tires ride on a thin film of water instead of on the road. To prevent hydroplaning in wet weather, you should:
Explanation
Hydroplaning is caused by driving too fast on a wet road. Slow down when driving on wet pavement to prevent hydroplaning.
18. Motorcyclists are entitled to use the full width of a traffic lane. A driver should pass a motorcycle the same way a driver would pass another vehicle.
Explanation
Although there may be enough room in the traffic lane for an automobile and a motorcyclist, a vehicle driver should remember that the motorcyclist needs the room to maneuver safely and is entitled to the entire lane. A vehicle driver should not share the lane with motorcyclists.
19. When driving on the highway, consistently looking far ahead of your vehicle:
Explanation
To avoid the need for last-minute braking or turning, consistently watch the road far ahead of your vehicle. By looking ahead and being ready to stop or change lanes if needed, you can drive more safely, save fuel, and help keep traffic moving at a steady pace.
20. This sign tells you that:
Explanation
Warning signs are usually yellow with black markings. They alert you to conditions that are immediately ahead. This sign warns drivers about an upcoming winding road.
21. You are driving on a one-way street. You may only turn left onto another one-way street if:
Explanation
You may turn left onto a one-way street that moves to the left if there is no sign prohibiting the turn. You may not turn left onto a one-way street where traffic moves to the right.
22. This sign means:
Explanation
This sign is posted on one-way streets and other roadways where a driver is not allowed to enter. A driver may see this sign if attempting to enter an expressway ramp in the wrong direction.
23. While driving on a roadway with a single broken white centerline:
Explanation
White lines between lanes indicate that the lanes are traveling in the same direction. Broken white line markings indicate that it is legal to pass another vehicle when safe.
24. This sign means:
Explanation
Signs with a red circle and diagonal line over a black symbol indicate that the action represented by the symbol is prohibited. In this case, the sign indicates that left turns are prohibited.
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