Missouri permit test: road signs
Sign colors and shapes, warning, regulatory, work zone, guide, service and route signs. 33 questions, 10 at a time, starting with ones you haven't seen.
Rules to remember10 key road signs rulesShow the rules
- A reflective orange triangle on the rear of a vehicle means it travels less than 25 mph. (p. 49)
- A turn sign warns of a sharp turn or a turn where the recommended maximum speed is 30 mph or less. (p. 49)
- A red circle with a red slash over a symbol means you cannot do that action, such as no left turn or no U-turn. (p. 50)
- A Wrong Way sign means you entered oncoming traffic. (p. 51)
- A yield sign is triangular, red and white. (p. 51)
- Missouri's speed guide sets 55 mph as the maximum on lettered roads unless a sign says otherwise. (p. 52)
- The speed limit in any city, town or village is 25 mph unless a different limit is posted. (p. 52)
- With two or more tracks, look for a second train before you cross. (p. 53)
- The crossbuck has the same meaning as a yield sign, so you must yield to trains. (p. 53)
- Orange signs mark construction and work zones. (p. 53)
Taken from the explanations to checked practice questions; page numbers link to the official handbook.
Sample road signs questions
1.An interstate number has three digits and starts with an even digit, like I-270. What kind of road is it?
- AA spur into a city
- BA north-south main route
- CA toll road
- DA loop around a city
Show the answer
✓ D. A loop around a city
Three-digit interstates that start with an even digit loop around cities (like I-270 and I-435). Those that start with an odd digit are spurs into a city.
Source: Missouri Driver Guide (Revised August 2026), page 56
2.A curve warning sign has a speed plate below it. What does that advisory plate show?
- AThe distance to the curve in feet
- BThe speed limit for trucks only
- CThe legal minimum for the road
- DThe recommended speed for the curve
Show the answer
✓ D. The recommended speed for the curve
The advisory speed plate shows the recommended speed for the curve. Never go faster in rain, snow or icy conditions.
Source: Missouri Driver Guide (Revised August 2026), page 49
3.What does this warning sign mean?
- AThe signals are not working
- BA traffic signal is ahead
- CA railroad crossing is ahead
- DA police checkpoint is ahead
Show the answer
✓ B. A traffic signal is ahead
This sign warns of a traffic light signal ahead on your road. Be prepared to stop.
Source: Missouri Driver Guide (Revised August 2026), page 48
4.You see this white X-shaped sign at a railroad crossing. What does it mean?
- AThe tracks are no longer in use
- BTrains must stop for your car
- CYield to trains, like a yield sign
- DAlways stop, even with no train
Show the answer
✓ C. Yield to trains, like a yield sign
The crossbuck has the same meaning as a yield sign, so you must yield to trains. A sign under it tells you how many tracks cross the road.
Source: Missouri Driver Guide (Revised August 2026), page 53