Practice tests
Road signs test: practice and the shape and color code
The practice test above uses only sign, signal and marking questions. Below, the federal code that gives every US sign its shape and color, so you can read a sign you have never seen.
Your score · California
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| Practice target: 16 of 20 (80 %) |
| You can still miss 4 |
Practice questions written from the state handbook and federal rules. Not the official test.
Road sign questions are the most predictable part of the permit test, because every state uses the same federal rulebook, the Manual on Uniform Traffic Control Devices published by the Federal Highway Administration. Its 11th edition fixes the shape and color of each sign family: the octagon is reserved for STOP, the downward triangle for YIELD, the diamond for warnings, the pentagon for school zones, the round sign for a railroad crossing ahead and the pennant for a no-passing zone. Colors carry meaning too: red for stop and prohibition, yellow for general warnings, orange for work zones, green for directions, blue for services and brown for recreation. Learn those two codes and most sign questions can be answered from the shape alone. Our signs-only practice test draws on 16 sign questions, plus 7 on signals and 7 on pavement markings, each with an explanation.
Questions and state rules by Radif Partners · Editorial policy · How the questions are written
Shapes: the first clue on every sign
The federal Manual on Uniform Traffic Control Devices gives each sign family a shape, so that a driver can recognize it from a distance, from behind, or covered in snow. Test makers rely on this: many sign questions show a blank shape or a symbol without words. Five shapes belong to a single sign or a single situation; the others group whole families.
| Shape | Used for | What to do |
|---|---|---|
| Octagon | STOP only | Come to a full stop, then go when the way is clear |
| Triangle, point down | YIELD only | Slow down, stop if needed, let others go first |
| Circle | Railroad crossing ahead | Look, listen, be ready to stop |
| Crossbuck (X) | Railroad crossing | Yield to trains; stop if one is coming |
| Pennant (sideways triangle) | No passing zone | Do not start to pass; placed on the left side |
| Pentagon | School zone or school crossing ahead | Watch for children, obey the school speed limit |
| Diamond | Warning | A hazard or a change in the road ahead |
| Vertical rectangle | Regulatory | A rule you must obey: speed, turns, lanes |
| Horizontal rectangle | Guide | Directions, distances, exits |
| Trapezoid | Recreation and some route markers | Parks and cultural sites |
Two of these shapes are tested more than any other. The octagon means stop completely at the line, before the crosswalk, or at the point where you can see cross traffic, whichever comes first. The downward triangle means you may roll through if no one is coming, but must give way to vehicles and pedestrians already there.
Colors: what kind of message
Color is the second clue. Red always signals a stop or a ban, which is why DO NOT ENTER and WRONG WAY share it with STOP. Yellow and the brighter yellow-green warn; orange marks temporary work zones where fines are often higher. Green, blue and brown are informational and never order you to do anything.
| Color | Meaning |
|---|---|
| Red | Stop, yield, prohibition (DO NOT ENTER, WRONG WAY) |
| White | Regulatory signs (black text on white) |
| Yellow | General warning |
| Fluorescent yellow-green | Pedestrian, bicycle and school warnings |
| Orange | Temporary traffic control, work zones |
| Fluorescent pink | Incident management (crash scenes) |
| Green | Guide signs, permitted movements |
| Blue | Services for drivers, evacuation routes |
| Brown | Recreation and cultural interest |
| Purple | Lanes for vehicles with an electronic toll account |
Signals and arrows
Signal questions turn on the difference between steady and flashing lights. A steady red means stop and stay stopped; a right turn on red is allowed after a full stop unless a sign forbids it. A flashing red is treated like a STOP sign. A steady yellow warns that red is about to appear, so stop if you can do it safely. A flashing yellow means proceed with caution. A flashing yellow arrow allows a left turn only after yielding to oncoming traffic and pedestrians, which is the most missed signal question in practice. Our bank has 7 questions on signals.
Pavement markings
Markings follow their own color logic. Yellow separates opposite directions, white separates lanes in the same direction. A double solid yellow line forbids passing for both sides; a solid line next to a broken one lets only the side with the broken line pass. White diamonds mark lanes reserved for buses, carpools or other special use, and a solid white line between lanes means stay in your lane. We have 7 marking questions in the practice bank.
Symbols without words
Many warning and regulatory signs use only a symbol: a curved arrow for a curve, a zigzag for a winding road, a deer or a cow for animal crossings, a red circle with a slash over a symbol for a ban. The slash always means "no", whatever the picture under it. Plaques below a sign add detail, such as an advisory speed for a curve or the hours a rule applies. Test questions often show the symbol alone, so learn the picture, not just the caption.
How to drill the sign section
Start with the shapes in the first table until you can name each one in a second. Then learn the colors, then the symbols. The signs-only practice test above mixes all three and explains every answer. Sign items appear on the written test in every state, whatever its length; 21 states in our data publish how many questions the full test has, and the question count guide shows how many you can miss. When signs are solid, move on to the full written test practice.
A last tip: signs carry English words such as STOP, YIELD and ONE WAY in every state, even when you take the test in another language. The Spanish test guide lists those words with their meaning.