Illinois Road Signs Test
25 questions on road signs, signals and pavement markings from the Illinois Rules of the Road 2026 (DSD A 112). Each answer is explained with the handbook page it comes from.
Questions from the Illinois Rules of the Road 2026 (DSD A 112), last checked November 2, 2026. Your progress is saved on this device.
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Question 1 of 25 · Road signs
What does this sign warn you about as you approach it?
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Correct answer: D. A road crosses yours ahead, so other vehicles may be entering
The handbook lists the crossroad sign among the signs that warn of an intersection ahead. Other traffic may be present, or a turn may be needed. It does not warn of a curve, slippery pavement, or an exit ramp.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 70. Handbook PDF
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Question 2 of 25 · Road signs
Where might you commonly see this sign posted?
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Correct answer: A. On a one-way street or a ramp approached from the wrong direction
The handbook says the Do Not Enter sign is posted on one-way streets and other roadways you may not enter, including expressway ramps if approached in the wrong direction.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Regulatory Signs”, page 65. Handbook PDF
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Question 3 of 25 · Road signs
A flagger is directing traffic at a road work site ahead, and the flagger signals you to stop. What are you required to do?
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Correct answer: D. Stop as signaled and wait for the flagger's next signal
Flaggers work close to traffic, and drivers must obey their signals. If a flagger signals you to stop, you must stop.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Portable Changeable Message Signs”, page 73. Handbook PDF
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Question 4 of 25 · Road signs
When you see this sign at an intersection, what must you do?
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Correct answer: C. Stop, then go in the order drivers arrived at the intersection
This plaque shows that every approach to the intersection has a stop sign, so traffic from all directions must stop. The first driver to stop goes first, and the others wait their turn.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Regulatory Signs”, page 65. Handbook PDF
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Question 5 of 25 · Road signs
What does this sign warn you about as you drive toward it?
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Correct answer: A. The road ahead will make a sharp turn to the right
Arrow signs are posted before turns and curves, and the arrow's shape shows what to expect. An arrow bending sharply to the right is the Right Turn Ahead sign, so the road turns right.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 70. Handbook PDF
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Question 6 of 25 · Road signs
You see this sign after turning into a street. What does it tell you about your vehicle?
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Correct answer: B. It is heading the wrong direction and you must correct it
The handbook says the Wrong Way sign tells drivers their vehicle is traveling in the wrong direction. It appears on expressway ramps past the DO NOT ENTER sign, or after turning the wrong way into a one-way street, alley or driveway.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Regulatory Signs”, page 66. Handbook PDF
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Question 7 of 25 · Road signs
What should you do when you see this sign ahead of you on the road?
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Correct answer: C. Begin slowing down, because a yield-controlled spot is approaching even if it is not yet visible
The handbook says Stop Ahead, Yield Ahead and Signal Ahead signs warn of upcoming traffic controls that may not be visible yet. They are placed close enough that you need to begin slowing down.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 69. Handbook PDF
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Question 8 of 25 · Road signs
When you see this sign on a road ahead of you, what must you do?
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Correct answer: A. Not continue on that road, since it is shut to all traffic
The handbook says this sign marks a road that is closed to all traffic, and drivers may not go any farther along it. So the correct choice is that you cannot continue on that road.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 68. Handbook PDF
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Question 9 of 25 · Road signs
What should you do when you see this sign along the road?
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Correct answer: D. Start slowing down because a traffic control is coming up
The Stop Ahead sign warns that a traffic control lies ahead, even if you cannot see it yet. The handbook says these signs are placed so you can begin slowing down in time.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 69. Handbook PDF
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Question 10 of 25 · Road signs
When you see this sign ahead, what is it telling you?
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Correct answer: A. The two-lane road ahead suddenly becomes narrower
The Road Narrows sign warns that a two-lane road suddenly becomes narrower. Lane reduction signs, narrow bridge signs and no passing signs have different meanings.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 71. Handbook PDF
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Question 11 of 25 · Road signs
A driver on a two-lane road with traffic in both directions sees this sign. What does it tell the driver?
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Correct answer: A. Passing other vehicles is not allowed along this stretch of road
The Do Not Pass sign is posted on some two-lane roads with two-way traffic, and it means you may not pass other vehicles. Yellow no-passing lines usually mark the road there too. The sign that ends the zone is Pass with Care, which is different.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 68. Handbook PDF
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Question 12 of 25 · Road signs
You approach a red and white triangular YIELD sign and cross traffic makes it necessary to stop. Where should you bring your vehicle to a halt?
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Correct answer: A. At a marked crosswalk or before the intersection
If you must stop at a yield sign, do it at a marked crosswalk, or before you enter the intersection. You should slow to a safe speed on approach and give right of way to vehicles and pedestrians.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Regulatory Signs”, page 65. Handbook PDF
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Question 13 of 25 · Road signs
What does this sign warn you about?
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Correct answer: B. A series of turns or curves in the road ahead
The handbook lists this as the Winding Road sign, one of the signs posted before turns and curves. Its bending arrow shows the driver that the road ahead twists, so the driver should expect several turns.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 70. Handbook PDF
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Question 14 of 25 · Road signs
When you see this sign ahead of you on the road, what should you do?
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Correct answer: A. Slow down, look and listen, and be ready to stop if a train is coming
This round yellow sign is the advance warning for a railroad crossing ahead. The handbook says to slow down, look, and listen, stopping if necessary, and to stop and wait if a train is approaching. Racing a train is never acceptable.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Chapter 9: Roadway Signs”, page 63. Handbook PDF
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Question 15 of 25 · Road signs
You come to this sign at an intersection that has no stop line and no crosswalk. Where must you stop?
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Correct answer: A. At a point where you have a clear view of all approaching traffic
With a stop sign, you must stop at the stop line or crosswalk if there is one. If there is neither, you stop where you can see all traffic coming toward you. After stopping, you yield the right of way to others.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Right of Way”, page 26. Handbook PDF
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Question 16 of 25 · Road signs
You are stopped at a red light and see this sign at the intersection. What must you do?
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Correct answer: C. Wait for the green light before making a right turn
The No Turn on Red sign tells drivers that a right turn on a red light is prohibited at that intersection. A driver must therefore wait until the signal changes before turning, even if the way looks clear.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Regulatory Signs”, page 67. Handbook PDF
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Question 17 of 25 · Road signs
When you see this sign at a railroad crossing, what must you do?
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Correct answer: A. Yield the right of way to any oncoming train or railroad equipment
The handbook says the crossbuck is treated as a yield sign, so drivers must give the right of way to any approaching train or railroad equipment. It does not require a stop every time, and racing a train is never allowed.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Railroad Crossings”, page 81. Handbook PDF
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Question 18 of 25 · Road signs
In IL, you are driving through a posted school speed zone. What does the handbook say about using a cellphone while driving there?
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Correct answer: A. It is prohibited while driving in that zone
Wireless and cellphone use is not permitted while driving in a posted school speed zone.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 69. Handbook PDF
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Question 19 of 25 · Road signs
What does this sign warn you about?
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Correct answer: B. A bridge ahead has a narrow roadway
The Narrow Bridge sign warns that the bridge ahead has a narrower roadway than the approach pavement. It is not the Road Narrows sign, which refers to a road rather than a bridge, and it does not signal a hill or a merge.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 71. Handbook PDF
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Question 20 of 25 · Road signs
Orange cones, drums, and barricades are set up along a road under repair. What is their main purpose for drivers?
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Correct answer: C. They mark a path to follow and warn of hazards
These devices guide drivers through construction and maintenance areas along a safe path, and they also warn of existing hazards.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Portable Changeable Message Signs”, page 73. Handbook PDF
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Question 21 of 25 · Road signs
When you see this sign, what should you do?
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Correct answer: C. Begin slowing down because a traffic signal is coming up
The Signal Ahead sign warns of an approaching traffic control signal. Even if the signal is not yet visible, you are close enough that you should start slowing down.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 69. Handbook PDF
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Question 22 of 25 · Road signs
When you see this sign on a multilane highway, who is it meant for and what should that driver do?
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Correct answer: C. Drivers going slower than normal traffic should drive in the right lane
The handbook says this sign is posted on some multilane highways for drivers moving slower than the normal flow of traffic. It tells them to use the right lane. It is not an obstruction warning like the Keep Right sign.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Regulatory Signs”, page 67. Handbook PDF
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Question 23 of 25 · Road signs
When you see this sign on the road, what is it warning you about?
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Correct answer: A. A road joins or crosses ahead, so other traffic may be present
The handbook says the intersection warning signs, including the side road sign, alert drivers to an intersection ahead where other traffic may be present or a turn may be needed. The other choices describe slippery pavement, exit ramp, and winding road signs.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Warning Signs”, page 70. Handbook PDF
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Question 24 of 25 · Road signs
A driver sees this sign beside an opening in a divided highway that leads to the other side. What does it mean for most drivers?
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Correct answer: C. Only authorized vehicles such as police cars may use the opening
The handbook says No U-Turn signs are posted on divided highways or expressways where an opening leads to the other side. Those openings are reserved for authorized vehicles such as police cars and ambulances, so other drivers may not use them.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Regulatory Signs”, page 66. Handbook PDF
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Question 25 of 25 · Road signs
You see a route marker sign along the highway, sometimes with a smaller sign mounted nearby. What is the purpose of a route marker?
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Correct answer: A. It directs you to a specific numbered road
Route markers identify particular roads and are used alone or with smaller signs to direct drivers along the right route.
Source: Illinois Rules of the Road 2026 (DSD A 112), “Other Special Signs”, page 74. Handbook PDF
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