Illinois Road Signs Test (2026)

27 questions about traffic signs: shapes, colors, regulatory and warning signs. Tap an answer to check it.

From the official handbook, 2026, Sections 9, 10 · Checked Oct 2026 · Not affiliated with the SOS. Illinois Rules of the Road (DSD A 112)

Sign images: federal MUTCD diagrams (public domain), from Wikimedia Commons.

Question 1 of 27 · 0 correct
  1. Question 1 of 27

    Where must you stop at this sign if there is no stop line or crosswalk?

    Red octagonal STOP sign
    Show answer and explanation

    Answer: Before entering the intersection

    Stop at the stop line; if none, before the crosswalk; if none, before the intersection. Temporary and handheld STOP signs count too.

    Handbook: Section 9, p. 63

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  2. Question 2 of 27

    This stop sign has an ALL-WAY plaque below it. Who goes first?

    Red octagonal STOP sign
    Show answer and explanation

    Answer: The first driver to stop

    All directions must stop; if two arrive at the same time, the vehicle on the left yields to the one on the right.

    Handbook: Section 9, p. 65

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  3. Question 3 of 27

    What does this sign require?

    Red and white downward-pointing triangle YIELD sign
    Show answer and explanation

    Answer: Let all traffic and pedestrians go first, stopping if needed

    YIELD signs are red and white and often appear on expressway ramps.

    Handbook: Section 9, p. 63

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  4. Question 4 of 27

    In rural areas, how far before the tracks can this round sign be?

    Round yellow sign with a black X and the letters RR
    Show answer and explanation

    Answer: Up to 750 feet

    Slow down, look, listen with windows down if needed, and never race the train.

    Handbook: Section 9, p. 63

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  5. Question 5 of 27

    This five-sided sign shows two children. What does it mean?

    Five-sided yellow-green school sign with two children
    Show answer and explanation

    Answer: A school is nearby (with a down arrow: you are at the crossing)

    School zone limits apply on school days when children are present.

    Handbook: Section 9, p. 64

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  6. Question 6 of 27

    Where is this pennant sign placed?

    Yellow pennant-shaped NO PASSING ZONE sign
    Show answer and explanation

    Answer: On the left side of a two-lane road at the start of a no-passing zone

    No-passing pavement markings are also used there.

    Handbook: Section 9, p. 64

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  7. Question 7 of 27

    What does this sign mean?

    Red circle with a white bar and the words DO NOT ENTER
    Show answer and explanation

    Answer: You may not enter this road, such as a one-way street or ramp the wrong way

    You may see it when trying to enter an expressway ramp the wrong way.

    Handbook: Section 9, p. 65

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  8. Question 8 of 27

    You pass this sign on a ramp. What does it mean?

    Red rectangular WRONG WAY sign
    Show answer and explanation

    Answer: You are traveling in the wrong direction

    It appears a short distance past the DO NOT ENTER sign.

    Handbook: Section 9, p. 66

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  9. Question 9 of 27

    You see this sign at a median opening on a divided highway. What does it mean?

    U-turn arrow crossed by a red circle and slash
    Show answer and explanation

    Answer: No U-turns; the opening is for authorized vehicles only

    Median openings are for police, ambulances, snow plows and similar vehicles.

    Handbook: Section 9, p. 66

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  10. Question 10 of 27

    What does this sign mean?

    Left-turn arrow crossed by a red circle and slash
    Show answer and explanation

    Answer: No left turn

    A red circle and slash means the pictured action is not allowed.

    Handbook: Section 9, p. 66

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  11. Question 11 of 27

    What does this sign mean?

    Black and white ONE WAY sign with an arrow
    Show answer and explanation

    Answer: Travel only in the direction of the arrow

    On a one-way street, all traffic moves in the same direction.

    Handbook: Section 9, p. 67

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  12. Question 12 of 27

    You are stopped at a red light with this sign. May you turn?

    White NO TURN ON RED sign
    Show answer and explanation

    Answer: No; right turns on red (and left on red between one-way streets) are prohibited

    Some versions show a red circle instead of the word RED.

    Handbook: Section 9, p. 67

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  13. Question 13 of 27

    What does this sign tell you at a traffic island?

    KEEP RIGHT sign with an arrow passing to the right of an obstacle
    Show answer and explanation

    Answer: Drive to the side shown by the arrow (the right)

    Keep to the side indicated by the arrow.

    Handbook: Section 9, p. 67

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  14. Question 14 of 27

    What does this sign tell drivers going slower than traffic?

    White SLOWER TRAFFIC KEEP RIGHT sign
    Show answer and explanation

    Answer: Drive in the right lane

    Slow vehicles must use the right lane except to pass or turn left.

    Handbook: Section 9, p. 67

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  15. Question 15 of 27

    What does this sign tell you?

    Sign showing a road divided by a median
    Show answer and explanation

    Answer: A divided highway with a median is ahead

    A median separates the two directions of traffic.

    Handbook: Section 9, p. 67

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  16. Question 16 of 27

    What does this yellow sign with a traffic light warn of?

    Yellow diamond sign with a traffic signal symbol
    Show answer and explanation

    Answer: A traffic signal ahead that may not be visible yet

    Start slowing down; these signs are common in high-speed areas.

    Handbook: Section 9, p. 69

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  17. Question 17 of 27

    What does this sign with a cross warn of?

    Yellow diamond sign with a black cross
    Show answer and explanation

    Answer: A crossroad ahead

    Watch for traffic entering from either side.

    Handbook: Section 9, p. 70

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  18. Question 18 of 27

    What does this T-shaped sign warn of?

    Yellow diamond sign with a T symbol
    Show answer and explanation

    Answer: The road ends ahead; you must turn right or left

    Slow down and prepare to turn.

    Handbook: Section 9, p. 70

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  19. Question 19 of 27

    What does this sign warn of?

    Yellow diamond sign with a winding arrow
    Show answer and explanation

    Answer: A winding road ahead

    A small plaque below may show the maximum safe speed.

    Handbook: Section 9, p. 70

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  20. Question 20 of 27

    What does this sign warn of?

    Yellow diamond sign with a car and skid marks
    Show answer and explanation

    Answer: Pavement that can be slippery when wet

    Slow down on wet pavement: it takes longer to stop.

    Handbook: Section 9, p. 70

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  21. Question 21 of 27

    What does this sign tell you?

    Yellow diamond sign with a lane joining from the right
    Show answer and explanation

    Answer: Two lanes will soon merge into one; be ready to adjust

    Drivers on the expressway should slow down to let ramp traffic merge.

    Handbook: Section 9, p. 72

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  22. Question 22 of 27

    What does this sign with two opposite arrows mean?

    Yellow diamond sign with two vertical arrows in opposite directions
    Show answer and explanation

    Answer: You are leaving a divided road for a two-way highway

    Expect oncoming traffic without a median.

    Handbook: Section 9, p. 72

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  23. Question 23 of 27

    What does this sign warn of?

    Yellow diamond sign with the median ending
    Show answer and explanation

    Answer: The divided highway ends ahead

    Be careful near the end of a divided highway.

    Handbook: Section 9, p. 72

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  24. Question 24 of 27

    What should you do when you see orange work zone signs like this?

    Orange diamond ROAD WORK AHEAD sign
    Show answer and explanation

    Answer: Slow to the posted work zone limit, stay alert and keep your distance

    Work zone limits apply 24/7, workers or not.

    Handbook: Section 9, p. 72

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  25. Question 25 of 27

    A vehicle ahead displays this orange triangle. What must you do?

    Orange triangle with a red border (slow-moving vehicle emblem)
    Show answer and explanation

    Answer: Slow down and pass only when safe and legal

    Slow-moving vehicles normally go 5-20 mph, so you close in fast.

    Handbook: Section 9, p. 74

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  26. Question 26 of 27

    How should you treat this crossbuck sign?

    White X-shaped RAILROAD CROSSING (crossbuck) sign
    Show answer and explanation

    Answer: As a yield sign: yield to any train or railroad equipment

    A sign below shows the number of tracks if there is more than one.

    Handbook: Section 10, p. 81

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  27. Question 27 of 27

    What does a sign showing opposite left-turn arrows over the center lane mean?

    Show answer and explanation

    Answer: The center lane is a two-way left turn lane

    The lane is marked with yellow lines and white arrows.

    Handbook: Section 9, p. 67

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