Illinois Traffic Sign Identification Test – 15 Sign Questions


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#1. What does this sign mean?

Crossroad. A road crosses the main highway ahead. Look in all directions for other traffic.


#2. You approach this road sign. What should you expect ahead?

Divided highway ahead. The highway ahead is divided into two one-way roadways.

Divided highways have a center strip that separates traffic going in opposite directions. The first sign is posted before a divided highway begins.


#3. When you see this sign, what should you expect ahead?

Reverse curves. This sign tells you there is a gradual curve to right, and then left. Check speed.


#4. A vehicle displaying this sign:

A vehicle displaying this sign is moving slowly. A driver must slow down and may pass only when safe and legal to do so.


#5. When you see this sign, what should you expect ahead?

Hill – Downgrade ahead. This sign warns you of a dangerous hill. It may be very long or steep, or it may have sharp curves. Slow down before you start down the hill. It may be a good idea to shift to a lower gear to control speed and preserve brakes.


#6. What does this sign mean?

Winding Road. There are several curves ahead. Slow down and drive carefully.


#7. This sign tells:

This sign is posted for those driving slower than the normal speed of traffic on some multilane highways. It tells the slow driver to drive in the right lane.


#8. This sign tells you:

This is a regulatory speed limit sign. It shows the maximum speed you are allowed to travel.


#9. What does this sign mean?

Stop sign ahead. When you come to this sign, you should slow down and be ready to stop at the stop sign ahead.

Although the stop sign may not yet be visible, the sign is close enough to require you to start slowing down. Advance warning signs also are used in high-speed areas because of the longer distance needed to slow down or stop.


#10. This sign means:

This sign tells you that two lanes of traffic going the same direction will soon merge into one lane. Be ready to either change lanes or allow other traffic to merge into your lane. Merge signs appear on expressways just before expressway ramps. The driver on the expressway slows down to let the driver on the ramp merge.


#11. When you see a sign with this shape and color, you must:

Eight-sided red stop signs mean you must make a full stop. Stop before entering a crosswalk or at a white limit line. If a crosswalk or limit line is not painted on the street, stop at the corner without entering the intersection.


#12. Red and blue signs in the shape of a shield mark:

This is an example of an Interstate route sign.

The interstate system has route markers in the shape of a shield. The top carries the legend interstate in white letters on a red background. The bottom is blue with the route number in large white letters.

Remember, the shape and color of route number signs indicate the type of roadway: interstate, U.S., state, city or county road. When planning a trip, use a road map to determine your route. During the trip, follow the route signs to prevent you from getting lost.


#13. Which road signs have a circular shape?

This round sign means railroad crossing ahead. Railroad crossing signs are yellow with a black crossbuck X and the letters RR.


#14. Know signs by their standard colors. U.S. route markers are:

U.S. Route signs are black and white.


#15. What does this sign mean?

This is a regulatory No U-turn sign. It means that you are not allowed to make a U-turn.

See result

Illinois Written Test

Key numbers for the official Illinois Written Test:

Number of Questions: Part I (Traffic signs): 15
Part II (Traffic laws): 20
Total: 35
Correct answers needed: 28
Passing score: 80 percent
Time limit: No limit
Earliest retest upon failure: 1 day

The Knowledge Examination has Two Parts

The Illinois exam consists of two parts.

The first part (this test) has 15 questions asking about common traffic signs described in Rules of the Road .

The remaining 20 questions will either be multiple-choice or true-false questions about Illinois traffic laws and safe driving.

This Illinois traffic sign identification practice test helps you make sure you have learned all the road signs, including the use of shapes and colors.

It is a randomized practice test that pulls questions from a larger pool of questions, which means that each time you take the test it will look slightly different and have new questions.

Download Rules of the Road

Before you start, make sure you get a copy of the handbook “Rules of the Road”. Everything you need to learn is found in this booklet.

The Second Part of Your Test

Make sure you practice the second part as well.

  Illinois Road Rules Test

Illinois Road Rules Written Exam

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