Illinois DMV Permit Practice Test 1: 50 Questions
Practice Test 1 has 50 multiple-choice questions on Illinois driving rules, including Illinois interstate speed limit, yellow arrow left turn, green arrow left turn and scott's law (Move Over). Each answer is explained as soon as you pick it, and every question is listed with its answer in the study guide below.
More Illinois Practice Tests
What Practice Test 1 Covers
The questions in this test ask about:
- Illinois Interstate Speed Limit
- Yellow Arrow Left Turn
- Green Arrow Left Turn
- Scott's Law (Move Over)
- Illinois Handheld Phone Ban
- Solid White Expressway Line
- Broken White Expressway Line
- Diamond Lane Marking
- Traffic Officer Overrides Signal
- Lane Change Sequence
- 3-Second Following Rule
- Increase Following Distance
- Tailgating Response
- Hydroplaning Response
- Child Safety Seat Location
Try 5 Questions from This Test
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On many Illinois interstate highways for passenger vehicles, when no lower speed is posted and conditions are good, what is the usual maximum speed limit?
Show answer
A. 70 mph unless a lower limit is posted
Illinois interstate highways for passenger vehicles commonly have a 70 mph maximum speed limit unless a different speed is posted for that roadway.
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A yellow arrow for a left turn at an intersection means:
Show answer
C. The protected left turn is ending; be prepared to stop or complete the turn if you are already in the intersection
A yellow arrow warns that the protected phase is ending and the light will soon change. Clear the intersection if you are already turning.
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At an intersection, a green arrow pointing left means you may:
Show answer
B. Make a protected left turn; oncoming traffic and pedestrians should have a red light
A steady green arrow gives you a protected turn in that direction while cross traffic and pedestrians face a red signal.
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When you approach a stopped emergency vehicle with flashing lights on an Illinois roadway, Scott’s Law requires you to:
Show answer
C. Slow down, proceed with caution, and move over to another lane if possible
Scott’s Law, Illinois’s Move Over law, requires drivers to reduce speed, use caution, and change lanes when it is safe around stopped emergency or service vehicles.
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In Illinois, which of these is true about using a handheld cell phone while driving?
Show answer
B. Using a handheld phone to talk, text, or browse while driving is prohibited, except in limited emergencies
Illinois law bans the use of handheld electronic devices while driving, with narrow exceptions such as emergencies.
Complete Study Guide: All 50 Questions with Answers
Every question in Practice Test 1, with the correct answer and an explanation for each.
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Q1. On many Illinois interstate highways for passenger vehicles, when no lower speed is posted and conditions are good, what is the usual maximum speed limit?
Correct answer: 70 mph unless a lower limit is posted
Why: Illinois interstate highways for passenger vehicles commonly have a 70 mph maximum speed limit unless a different speed is posted for that roadway.
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Q2. When you come to a STOP sign with a stop line at an intersection, where must you stop?
Correct answer: At the stop line, before the crosswalk or intersection
Why: You must make a full stop at the stop line first. If there is no line, stop before the crosswalk or intersection.
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Q3. A solid white line between lanes on an expressway usually means:
Correct answer: Lane changes are discouraged and should be made only when necessary
Why: Solid white lines separate lanes moving the same direction and warn you that frequent lane changes are not a good idea.
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Q4. A broken white line between lanes on an expressway means:
Correct answer: You may change lanes when traffic and road conditions make it safe
Why: Broken white lines show lanes going the same way and allow lane changes when there is enough space to move safely.
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Q5. Where is the safest place to keep your hands on the steering wheel of a modern car with airbags?
Correct answer: Around the 9 and 3 o’clock positions
Why: Keeping your hands around 9 and 3 o’clock improves control and helps reduce the chance of injury if the airbag inflates.
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Q6. If your view at an intersection is blocked by parked cars, buildings, or trees, what should you do?
Correct answer: Move forward slowly until you can see clearly, then proceed if it is safe
Why: When you cannot see cross traffic, ease forward a little at a time until you have a clear view, then enter only when it is safe.
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Q7. A yellow arrow for a left turn at an intersection means:
Correct answer: The protected left turn is ending; be prepared to stop or complete the turn if you are already in the intersection
Why: A yellow arrow warns that the protected phase is ending and the light will soon change. Clear the intersection if you are already turning.
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Q8. At an intersection, a green arrow pointing left means you may:
Correct answer: Make a protected left turn; oncoming traffic and pedestrians should have a red light
Why: A steady green arrow gives you a protected turn in that direction while cross traffic and pedestrians face a red signal.
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Q9. On a road, a lane marked with a diamond symbol is usually reserved for:
Correct answer: Buses, carpools, or bicycles as shown by nearby signs
Why: Diamond-marked lanes are reserved lanes. Signs tell you whether that lane is for HOVs, buses, or bicycles during certain times.
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Q10. When a traffic officer’s directions conflict with a traffic signal, you should:
Correct answer: Follow the officer’s instructions
Why: A police officer’s directions always override signs, signals, and pavement markings for as long as the officer is directing traffic.
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Q11. Before you change lanes on an Illinois highway, you should FIRST:
Correct answer: Check mirrors, signal, and then quickly look over your shoulder
Why: Safe lane changes use mirrors, turn signals, and a quick shoulder check to be sure there is no vehicle in your blind spot.
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Q12. The three-second rule is used to measure:
Correct answer: A safe following distance under normal conditions
Why: Pick a fixed object and make sure at least three seconds pass between the vehicle ahead and your vehicle passing that same spot.
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Q13. You should increase your following distance to more than three seconds when:
Correct answer: Roads are wet, icy, or visibility is limited
Why: Poor weather or limited visibility requires extra space so you have more time to react to sudden stops or hazards.
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Q14. On the road, when another driver is following you too closely (tailgating), you should:
Correct answer: Gradually slow down and, when possible, move to another lane so they can pass
Why: The safest response is to create more space and let the tailgater pass instead of engaging with them.
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Q15. A safe way to handle a skid on a road is to:
Correct answer: Ease off the accelerator and steer in the direction you want the front of the car to go
Why: Look where you want to travel and steer gently in that direction while avoiding sudden braking or acceleration.
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Q16. When must you use your headlights in Illinois in addition to the standard sunset-to-sunrise rule?
Correct answer: Whenever weather or other conditions make it hard to see people or vehicles 1,000 feet ahead
Why: Headlights are required any time visibility is poor, such as in heavy rain, snow, fog, or dust.
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Q17. If you are driving in heavy rain on a highway and your tires start to ride up on water, you should:
Correct answer: Slow down by easing off the gas and avoid sudden steering or braking
Why: Hydroplaning reduces your grip on the road. Gently reducing speed helps your tires regain contact.
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Q18. When you see a pedestrian beginning to cross at a crosswalk with the WALK signal you should:
Correct answer: Yield and allow them to finish crossing, even if your light turns green
Why: Pedestrians in a crosswalk with the WALK signal have the right-of-way. Do not enter the crosswalk until they are safely across.
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Q19. The safest place for a child safety seat is usually:
Correct answer: In the rear seat, away from active airbags
Why: The back seat is generally safer for children, especially when there are front airbags.
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Q20. When you are backing out of a driveway or parking space you should:
Correct answer: Turn your head and look through the rear window while backing slowly
Why: Backing up should be done slowly while looking directly through the rear window to fully see behind you.
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Q21. On a multilane road, the left lane is generally used for:
Correct answer: Passing or for faster-moving traffic
Why: Travel in the right lane when possible and use the left lane mainly to pass or to prepare for a left turn.
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Q22. When you approach a stopped emergency vehicle with flashing lights on an Illinois roadway, Scott’s Law requires you to:
Correct answer: Slow down, proceed with caution, and move over to another lane if possible
Why: Scott’s Law, Illinois’s Move Over law, requires drivers to reduce speed, use caution, and change lanes when it is safe around stopped emergency or service vehicles.
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Q23. A steady yellow traffic light means:
Correct answer: The light will soon change to red; you should stop if you can do so safely
Why: A steady yellow warns that the green phase is ending. Prepare to stop before the intersection if it is safe.
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Q24. A flashing yellow traffic light tells you to:
Correct answer: Slow down and proceed with caution
Why: Flashing yellow means you must be cautious, but a full stop is not required unless it is unsafe to proceed.
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Q25. A flashing red traffic light means you must:
Correct answer: Come to a complete stop, then proceed when the way is clear
Why: Treat a flashing red light like a stop sign: stop fully, yield, and go only when safe.
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Q26. If a traffic signal is not working at an intersection, you should:
Correct answer: Treat the intersection as a four-way stop
Why: When signals are out, all drivers should stop and then take turns proceeding, just like a stop-controlled intersection.
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Q27. In a school zone in Illinois on a school day when children are present, the speed limit is usually:
Correct answer: 20 mph, as posted in the school zone
Why: Illinois law sets a special 20 mph speed limit in posted school zones on school days when children are present.
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Q28. You may not park within how many feet of a fire hydrant in Illinois?
Correct answer: 15 feet
Why: Illinois law, like many states, requires vehicles to stay at least 15 feet from a fire hydrant so firefighters can attach hoses quickly.
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Q29. When driving near a bicyclist, you should:
Correct answer: Give them as much space as you safely can and pass slowly
Why: Bicyclists are vulnerable road users. Slow down and leave plenty of room when passing.
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Q30. On a highway, if you feel sleepy or drowsy, the safest thing to do is:
Correct answer: Get off the road at the next safe exit and rest
Why: Short-term tricks do not fix fatigue. The safe solution is to stop driving and rest.
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Q31. If you are involved in a minor crash with no injuries on an expressway, you should:
Correct answer: Move your vehicle to the shoulder if possible and exchange information
Why: If vehicles can move, clearing the travel lanes reduces the chance of another crash. Then exchange information and file any required reports.
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Q32. If a police officer stops you you should:
Correct answer: Stay calm, keep your hands visible, and follow the officer’s instructions
Why: Keeping your hands where the officer can see them and waiting for instructions helps keep everyone safe.
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Q33. If your turn signals are not working, you must:
Correct answer: Use the proper hand and arm signals until they are repaired
Why: Hand signals are still legal and required when your electrical turn signals fail.
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Q34. When preparing to turn right at an intersection you should:
Correct answer: Signal, move close to the right curb, and slow down before turning
Why: Good right turns start from the correct lane position with plenty of warning to other drivers and pedestrians.
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Q35. When turning left from a two-way street onto a two-way street you should:
Correct answer: Turn from the lane nearest the center line into the lane nearest the center line on the new street
Why: Turning from and into the lanes nearest the center lines reduces conflicts with other vehicles.
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Q36. How does alcohol use affect your driving ability?
Correct answer: It slows your reflexes and harms judgment even at low BAC levels
Why: Even small amounts of alcohol can make it harder to react quickly and make safe decisions.
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Q37. If your vehicle begins to skid because of ice on a road, you should:
Correct answer: Take your foot off the accelerator and steer gently in the direction you want to go
Why: On ice, sudden braking or steering can make a skid worse. Gentle steering and easing off the gas help you regain control.
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Q38. When sharing the road with motorcyclists you must remember that motorcycles:
Correct answer: Are harder to see and can be easily hidden in traffic
Why: Because motorcycles are smaller, they can be hard to notice. Look carefully, especially at intersections and when changing lanes.
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Q39. A driver who is feeling angry or stressed while driving should:
Correct answer: Calm down, increase following distance, and avoid aggressive behaviors
Why: Strong emotions can lead to risky choices. Giving yourself extra space and staying calm reduces the chance of a crash.
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Q40. If another driver is acting aggressively toward you on the road, you should:
Correct answer: Avoid eye contact, do not respond, and if necessary drive to a safe public place
Why: Do not escalate conflicts. Staying calm, avoiding contact, and moving to a safe location is the safer choice.
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Q41. When you are driving at night on a rural road with no streetlights, you should:
Correct answer: Use your high beams when there is no oncoming traffic and switch to low beams when another car approaches
Why: High beams help you see further, but you must dim them for nearby traffic to avoid blinding other drivers.
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Q42. When approaching a railroad crossing with no gates or signals, you should:
Correct answer: Slow down, look and listen for trains, and be prepared to stop
Why: At passive crossings, your eyes and ears are the only warning devices. Always check carefully before crossing.
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Q43. Before you start driving you should adjust:
Correct answer: Your seat, mirrors, and steering wheel so you can reach controls comfortably
Why: A proper driving position helps you see clearly and control the vehicle more easily.
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Q44. On a wet road, compared to dry pavement, your stopping distance is:
Correct answer: Longer, so you must slow down and increase following distance
Why: Rain reduces traction and increases the distance needed to stop. Slowing down and staying back gives you more time.
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Q45. When you are the first vehicle at a green light, what is the safest way to start moving?
Correct answer: Look left and right for cross traffic and pedestrians before you accelerate
Why: Even with a green light, you must first check that the intersection is clear of vehicles and pedestrians before you proceed.
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Q46. On a city street with two lanes in your direction and parked cars on the right, the best lane to travel in is usually:
Correct answer: The left lane, so you avoid opening doors and people stepping out
Why: Keeping a safe distance from parked vehicles reduces the chance of hitting opening doors or pedestrians entering the roadway.
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Q47. When approaching an Illinois work zone with reduced speed limit signs, you must:
Correct answer: Slow down to the posted work zone speed limit, even if no workers are visible
Why: Work zone speed limits apply whenever they are posted. Fines and penalties are higher for violations in these areas.
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Q48. If a traffic light shows a green signal but a police officer is waving you to stop, you should:
Correct answer: Obey the officer and stop, even though the light is green
Why: Directions from police and traffic officers override signals and signs. You must follow the officer’s commands.
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Q49. Before changing lanes on an expressway, the last thing you should do just before moving is:
Correct answer: Take a quick look over your shoulder in the direction of the lane change
Why: A quick shoulder check is the final step to be sure no one is in your blind spot before you steer into another lane.
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Q50. In Illinois, which of these is true about using a handheld cell phone while driving?
Correct answer: Using a handheld phone to talk, text, or browse while driving is prohibited, except in limited emergencies
Why: Illinois law bans the use of handheld electronic devices while driving, with narrow exceptions such as emergencies.