Sample Road Signs questions
In rural Illinois, what is the farthest before a railroad crossing that the round yellow advance warning sign may stand?
750 feet 3 miles 25 feet 100 feet Show the answer
750 feet
Slow down, look and be ready to stop when you see it. The handbook also suggests lowering your windows to listen for a train.
Source: Illinois Rules of the Road (2026), Chapter 9, Roadway Signs: introduction (p. 63); Chapter 10, Traffic Signals and Pavement Markings: Railroad Crossings (p. 81)
A school guard in Illinois holds up a stop sign. What must you do?
Stop until the guard signals that it is safe Stop briefly, then go when you see a gap Slow down and continue past the guard Sound your horn and continue Show the answer
Stop until the guard signals that it is safe
Stay stopped until the guard, flagger or other authorized person waves you on.
Source: Illinois Rules of the Road (2026), Chapter 9, Roadway Signs: introduction (p. 63)
What does a pink road sign tell Illinois drivers?
A traffic incident lies ahead A school zone begins Services are available ahead A park is nearby Show the answer
A traffic incident lies ahead
Pink may mark sudden events on the road, such as a crash or a natural disaster.
Source: Illinois Rules of the Road (2026), Chapter 9, Roadway Signs: Colors of Signs (p. 65)
A temporary stop sign put up by Illinois highway authorities must be treated like a permanent stop sign.
Show the answer
True
Treat it the same way, with a complete stop and yielding to pedestrians and approaching traffic.
Source: Illinois Rules of the Road (2026), Chapter 9, Roadway Signs: introduction (p. 63)
You come upon a crash in Illinois involving a truck with a hazardous materials placard and no responders. What should you do?
Avoid the area and report it from a safe place Walk up and read the placard closely Move the truck off the road Drive through quickly to clear the area Show the answer
Avoid the area and report it from a safe place
Exposure effects can be delayed, so seek medical aid if you feel ill.
Source: Illinois Rules of the Road (2026), Chapter 9, Roadway Signs: Hazardous Materials Signs (p. 75)
A portable electronic message sign in Illinois tells you to take a detour. What should you do?
Follow it only if it's orange Follow the message Stop and ask the crew about it Ignore it unless an officer agrees Show the answer
Follow the message
These signs give current information on delays, closures and detours, and it is important to follow them.
Source: Illinois Rules of the Road (2026), Chapter 9, Roadway Signs: Portable Changeable Message Signs (p. 73)
What does a yellow-green warning sign usually point out in Illinois?
Road construction ahead Pedestrian, bicycle or school areas Upcoming highway exits Gas and food services Show the answer
Pedestrian, bicycle or school areas
Typical uses are crossings for walkers and cyclists, play areas, school zones and stops for school buses.
Source: Illinois Rules of the Road (2026), Chapter 9, Roadway Signs: Colors of Signs (p. 64)
What does a No Turn on Red sign ban at an Illinois signal?
Left turns only, on two-way streets All turns, even on a green arrow Right turns on red, and lefts between one-way streets Right turns only, at any light Show the answer
Right turns on red, and lefts between one-way streets
The sign covers both red-light turns that Illinois otherwise allows. Instead of the word, it may show a red circle.
Source: Illinois Rules of the Road (2026), Chapter 9, Roadway Signs: No Turn on Red (p. 67)
What does this sign warn you about?
A steep downhill grade ahead A truck weigh station ahead A falling rock area ahead Show the answer
A steep downhill grade ahead
Check your speed before the hill. Trucks and other vehicles may be going slowly.
Source: Manual on Uniform Traffic Control Devices, 11th Edition, Section 2C.14 ; Arizona Driver License Manual and Customer Service Guide, Section 3, Roadway and Vehicle Knowledge: Diamond, warning signs (p. 42)
What does this sign warn you about?
Golf carts may be on or crossing the road A golf course closes the road ahead Parking is reserved for carts ahead Show the answer
Golf carts may be on or crossing the road
Golf carts move slowly and can be hard to see. Be ready to slow down.
Source: Manual on Uniform Traffic Control Devices, 11th Edition, Section 2C.54
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More Illinois practice
Full practice test All topics, as in the knowledge test Right-of-Way Who goes first at intersections, crosswalks and roundabouts Traffic Signals Lights, arrows and pedestrian signals Lanes & Turns Lane markings, turns, passing and merging Speed Limits Limits and how to adjust your speed Parking Curb colors, hills and where you can't park Safe Driving Following distance, weather, night driving and sharing the road Alcohol & Drugs Blood alcohol limits, DUI rules and medication Emergencies Breakdowns, emergency vehicles and railroad crossings License Rules Permits, restrictions for new drivers and points Insurance & Collisions Required coverage and what to do after a crash Phones & Distraction Phone rules and other distractions
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About these questions
We wrote these practice questions from the facts in the Illinois Rules of the Road (2026 (DSD A 112.47, printed July 2026) edition) and from official sources on road signs. Every answer links to its source, so you can check it and read more.
DMV Decoded is an independent guide, not a government agency. This practice test is not connected to the Illinois Secretary of State, and your actual test will have different questions. Study the handbook, and check the agency's website for current rules.
