Illinois permit test: lanes, passing & merging

Lane choice, changing lanes, blind spots, passing rules and merging. 5 questions.

Question 1 of 5
Lanes, passing & mergingIllinois rule

When passing on a two-lane Illinois highway, you must return to your lane before coming within how many feet of an oncoming vehicle?

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Sample lanes, passing & merging questions

  1. When passing on a two-lane Illinois highway, you must return to your lane before coming within how many feet of an oncoming vehicle?

    • A 200 feet
    • B 500 feet
    • C 100 feet
    • D 50 feet
    Show answer

    A. 200 feet

    You must return to your lane before getting within 200 feet of an oncoming vehicle. Do not cut back in until the whole vehicle you passed is visible in your rearview mirror.

    Source: 2026 Illinois Rules of the Road, page 31

  2. On a two-lane, two-way Illinois road, passing is not allowed within how many feet of an intersection or railroad crossing?

    • A 50 feet
    • B 100 feet
    • C 300 feet
    • D 200 feet
    Show answer

    B. 100 feet

    Passing on a two-lane road is prohibited within 100 feet of an intersection or railroad crossing. Vehicles may turn or stop there, and a pass leaves you in the wrong lane.

    Source: 2026 Illinois Rules of the Road, page 32

  3. A driver behind you on a two-lane road flicks their turn signals to tell you it is clear to pass. Under Illinois law, this is:

    • A Legal only at night
    • B Illegal, because turn signals may not be used as a courtesy or pass signal
    • C Required, whenever a truck is in front of you
    • D Legal and polite, so you may pass right away
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    B. Illegal, because turn signals may not be used as a courtesy or pass signal

    Illinois forbids flashing turn signals as a courtesy or 'do pass' signal. The other driver may be wrong about what is ahead, and signals should only mean your own turn or lane change.

    Source: 2026 Illinois Rules of the Road, page 31

  4. On an Illinois interstate, when may you drive in the left lane other than to pass?

    • A Any time during daylight hours
    • B Whenever you plan to exit in the next few miles
    • C When no other vehicle is directly behind you
    • D Whenever you are driving at the speed limit
    Show answer

    C. When no other vehicle is directly behind you

    On interstates and full access-controlled freeways, the left lane is for passing. Exceptions include no vehicle directly behind you, heavy congestion, weather, a hazard in the right lane, or moving over for emergency or construction vehicles.

    Source: 2026 Illinois Rules of the Road, page 32