Illinois DMV Practice Test 5

4.8 out of 5 (639 votes)
80% Passing score
20 Questions
4 Mistakes allowed
This Illinois rules of the road practice test gets into one of the areas people tend to skim and then regret skimming: alcohol, DUI rules, BAC limits, and what impaired driving actually means under Illinois law. It is the fifth test in our Illinois permit practice test series, with 20 multiple-choice questions written to help you prepare for the Illinois DMV permit test without pretending the whole thing is just common sense. Some of it is common sense. Some of it is very specific, and that is usually where people lose points. The Illinois Class D written exam is based on the Secretary of State’s Rules of the Road, and it is not limited to one neat little category. You are expected to understand traffic laws, road signs, traffic signals, pavement markings, right-of-way rules, speed laws, turns, passing, parking, lane use, distracted driving, DUI laws, and how to share the road with pedestrians, bicyclists, motorcyclists, large vehicles, and emergency vehicles. So while this Illinois free DMV practice test focuses heavily on alcohol-related driving rules, it still fits into the bigger picture of what the real DMV learners permit practice test is trying to measure. Illinois requires the Class D written test to include at least 35 questions, and you need a score of 80% to pass. On a 35-question exam, that works out to 28 correct answers, which means you can miss 7. That sounds forgiving until you realize how quickly those missed questions can pile up when signs, right-of-way, BAC rules, and penalties all start blending together in your head. And, just to add a little pressure, applicants get 3 attempts to pass the written and/or road tests within 1 year of the first attempt. This Illinois DMV knowledge test practice does not use actual state exam questions, because those are not released. Instead, the questions are written to match the subjects, wording style, and general feel of the real Illinois DMV permit test. You will also get immediate feedback after each answer, which is where the learning actually happens, not in that heroic last-minute handbook skim everyone swears will be enough. For teens, the permit process can begin at age 15 with parent or guardian consent, approved driver education requirements, identification documents, a vision screening, and the written exam. Adults have their own rules too, including possible instruction permits and, for some first-time applicants ages 18 to 20, a required 6-hour Adult Driver Education Course. So whatever your age, study the handbook, review road signs, and use this practice test until the rules feel less like trivia and more like things you can actually apply.
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Sample Illinois Permit Test Questions

Question 1

What does a flashing yellow traffic signal require you to do?

  1. A Continue without considering cross traffic
  2. B Come to a complete stop before proceeding
  3. C Proceed through the intersection with caution
  4. D Wait until the signal displays a steady green light

Correct answer: C – Proceed through the intersection with caution

A flashing yellow signal allows a driver to proceed through the intersection or past the signal only with caution. Unlike a flashing red signal, it does not by itself require a complete stop. The driver must remain alert to traffic and other roadway users while proceeding.

Source: 625 ILCS 5/11-309(2) — Flashing Signals, Illinois Rules of the Road — Ch. 10, “Flashing Lights”

Question 2

During the straight-line backing portion of the Illinois driving exam, you should:

When backing up your car, you should:
  1. A Watch only the inside and outside mirrors
  2. B Turn your head to the right, watch to the rear, and back slowly
  3. C Turn left and watch only through the driver-side window
  4. D Alternate your view rapidly without watching the vehicle’s path

Correct answer: B – Turn your head to the right, watch to the rear, and back slowly

The driving exam requires an applicant to back approximately 50 feet at a slow speed in a straight and smooth manner. While performing the maneuver, the applicant should turn the head to the right and watch toward the rear. Maintain direct observation of the vehicle’s path throughout the maneuver.

Source: Illinois Rules of the Road — Ch. 2, “Driving Exam”

Question 3

Dust or smoke makes vehicles unclear at 1,000 feet. Under Illinois law, what must you turn on while reducing speed?

  1. A Parking lights only
  2. B Interior lights
  3. C Headlights
  4. D Emergency flashers

Correct answer: C – Headlights

Two lighted headlamps are required when unfavorable atmospheric conditions make people or vehicles not clearly discernible at 1,000 feet. Parking lamps may be used in addition to headlamps, but not instead of them. Drivers must also reduce speed when weather or highway conditions create a special hazard, even when traveling below the posted limit.

Source: 625 ILCS 5/12-201(b) – When lighted lamps are required, 625 ILCS 5/11-601(a) – General speed restrictions

Question 4

At night, glare from an oncoming vehicle’s undimmed headlights interferes with your vision. Which visual reference is appropriate?

At night, if an oncoming vehicle fails to dim its high-beams, look:
  1. A The center of the oncoming lane
  2. B The right-hand edge line
  3. C The oncoming headlights
  4. D The vehicle’s interior lights

Correct answer: B – The right-hand edge line

Glare can interfere with night vision. The official manual advises using roadway edge and center lines as guides and avoiding unnecessary interior lighting. The right-hand edge line is one of those roadway guides. Separately, an oncoming driver must dim high beams within 500 feet.

Source: 625 ILCS 5/12-210(a) – Use of head lamps and auxiliary driving lamps, Illinois Rules of the Road 2026 — Ch. 11, “Night Driving”

Question 5

Before stepping out of a car parked along a two-way street, what must you check on the traffic side?

  1. A Whether the car is at least 2 feet from the curb
  2. B Whether the front wheels point toward the curb
  3. C Whether vehicles or bicyclists are approaching from behind
  4. D Whether the interior lights are on

Correct answer: C – Whether vehicles or bicyclists are approaching from behind

Before opening a door on the side exposed to moving traffic, you must determine that doing so is reasonably safe and will not interfere with traffic. The official manual specifically advises checking for bicyclists after parking. Check your mirrors and look behind before opening the door, and do not leave it open longer than necessary.

Source: 625 ILCS 5/11-1407 – Opening and closing vehicle doors, Illinois Rules of the Road 2026 — Ch. 5, “Bicycles”

Question 6

When passing on the left of a two-lane Illinois road, you must return to an authorized lane before an oncoming vehicle is within:

  1. A 100 feet
  2. B 200 feet
  3. C 300 feet
  4. D 500 feet

Correct answer: B – 200 feet

The opposing lane must be visible and free of traffic far enough ahead to complete the pass safely. You must return to an authorized lane before coming within 200 feet of an oncoming vehicle and may not return right until safely clear of the vehicle passed. The overtaken driver also must not increase speed until completely passed.

Source: 625 ILCS 5/11-705 – Limitations on overtaking on the left, 625 ILCS 5/11-703(a)-(b) – Overtaking a vehicle on the left

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