Colorado Road Signs Practice Test
Sharpen the skill the Driving Knowledge Test (commonly called the written or permit test) leans on most: 25 questions on road sign shapes, colors, and meanings, each explained in plain English. You need 80% correct to pass the real DMV Driving Knowledge Test (commonly called the written or permit test).
Tap an answer. The explanation opens so you can learn it, then go on. Keyboard: A–D or 1–4 to answer, then Enter or Space.
Question 1 of 25
1. A horizontal black sign with a white arrow and the words ONE WAY points to the left at an intersection. What does it tell you?
Show answer & explanation
Correct answer: C. A ONE WAY sign means every vehicle on that street must travel in the arrow's direction. Driving against it puts you head-on into traffic. Before turning onto any city street, glance for the arrow and follow where it points.
2. On a highway, you look for the way to your destination city. What kind of information do signs with a green background give you?
Show answer & explanation
Correct answer: D. Green guide signs point the way, listing destinations, how many miles remain, and which exits to take. They inform rather than command, so no action is required. Think of green as the color that says go this way.
3. A yellow diamond sign ahead shows a plus symbol, like a small cross. What is this sign warning you about?
Show answer & explanation
Correct answer: A. The crossroad symbol warns that a full intersection is ahead, so vehicles may pull out or turn from the left or right. Slow down and scan both directions. Picture the plus sign as two roads meeting.
4. A diamond-shaped orange sign with black markings is posted ahead of a lane shift. What class of message is that?
Show answer & explanation
Correct answer: B. Orange diamonds are reserved for temporary traffic-control in work zones. They warn that the road, lanes, or workers ahead are not in their usual place. When the background turns orange, expect cones, narrowed lanes, and people on foot.
5. While driving, you notice a brown sign with white letters pointing toward a destination. What kind of place does a brown sign identify?
Show answer & explanation
Correct answer: A. Brown signs guide you to recreational and cultural spots such as parks, campgrounds, monuments, and historic sites. The earthy brown color hints at outdoor places. When you are hunting for scenery or history, follow the brown signs.
6. A yellow diamond shows a bicycle and the words SHARE THE ROAD. What is it asking you to do?
Show answer & explanation
Correct answer: B. Share-the-road warnings remind you that bicyclists are legal traffic. Slow, wait for a clear gap, and pass with generous space. The sign exists because drivers otherwise squeeze bikes toward the gutter.
7. One sign shape is so important that it is reserved for a single message: STOP. Which shape is it?
Show answer & explanation
Correct answer: B. The eight-sided octagon belongs to the stop sign alone, so you can recognize a stop even when the face is snow-covered or faded. Count eight sides, prepare to stop. No other sign may borrow this shape.
8. Small green signs with numbers appear every mile along the edge of the highway. What are these mile markers mainly used for?
Show answer & explanation
Correct answer: C. Mile markers count the distance across a route, letting you track your progress, judge how far your exit is, and give an exact location when you call for help. Note the nearest marker whenever trouble starts.
9. Along a curb you see a white sign with a large letter P inside a red circle and slash. What does it tell you?
Show answer & explanation
Correct answer: C. A P covered by a red circle and slash is the international no-parking symbol, banning parking where the sign applies. It keeps curbs clear for visibility, hydrants, and traffic flow. Any symbol wearing the red slash is something you cannot do.
10. Which shape is used only for yield signs, so you can recognize the sign even when you cannot read its face?
Show answer & explanation
Correct answer: D. Only yield signs use the downward-pointing triangle, just as only stop signs use the octagon. Unique shapes let drivers react from the outline alone in fog or darkness. Picture the point aiming down, telling you to back off and give way.
11. On a two-lane road, the center line nearest your lane is broken yellow, while the line on the far side is solid yellow. When may you cross it to pass?
Show answer & explanation
Correct answer: C. A broken yellow line on your side means passing is permitted from your direction, but only when oncoming traffic is far enough away to pass safely. Broken means you may cross; solid means stay put.
12. You see a red-and-white triangular sign reading YIELD as you approach a traffic circle. What should you do?
Show answer & explanation
Correct answer: B. A yield sign tells you to slow down, check for traffic with the right-of-way, and stop only when necessary to let it pass. It keeps merges smooth without forcing pointless stops. Think of yield as give way, not a full stop every time.
13. At a railroad crossing you see a white X-shaped sign reading RAILROAD CROSSING, with no gates or flashing signals. How should you treat it?
Show answer & explanation
Correct answer: B. The crossbuck is a regulatory sign that legally works like a yield sign at the tracks. Trains cannot swerve or stop quickly, so you must give way every time. At passive crossings, your eyes and ears are the only warning system.
14. A pentagon-shaped fluorescent yellow-green sign shows two walking children. What is it warning you about?
Show answer & explanation
Correct answer: B. The five-sided shape is reserved for school and school-crossing signs. Slow down and watch for children who may step off the curb without looking. Pentagon plus kids means school.
15. A yellow diamond shows a sideways wind-sock or windswept tree. What risk is ahead?
Show answer & explanation
Correct answer: A. Crosswind warnings mark bridges, cuts, and open plains where gusts shove vans, trucks, and empty trailers. Ease off the gas and keep both hands on the wheel. If you drive something tall, treat the sign as a speed cut.
16. A brown sign with white recreation symbols appears beside the highway. What kind of information is it giving?
Show answer & explanation
Correct answer: B. Brown signs point to cultural and recreation destinations. They do not change the speed limit or right-of-way. Use them to find the park; keep obeying the white and yellow signs for the rules.
17. At the top of a ramp you see a square sign with a red circle and a white horizontal bar reading DO NOT ENTER. What does it mean?
Show answer & explanation
Correct answer: A. DO NOT ENTER marks a roadway where traffic flows toward you, such as an exit ramp or one-way street. Entering it risks a head-on crash. If you have already turned in and see WRONG WAY, pull over and turn around safely.
18. On a multilane highway, white lines separate the lanes. What does the white color tell you about the traffic around you?
Show answer & explanation
Correct answer: B. White lines divide lanes of traffic that flow the same way, while yellow divides opposing flows. Reading line color at a glance tells you instantly where oncoming cars can be. White means with you, yellow means toward you.
19. On a dark road you see several black-and-yellow signs, each with a single sideways V pointing to the right, spaced along the roadside. What do they mark?
Show answer & explanation
Correct answer: B. Chevron alignment signs outline a sharp curve, each arrowhead pointing the direction the road bends. They are placed in a series so your headlights pick up the curve's shape at night. Follow the chevrons like breadcrumbs through the turn.
20. A round yellow sign with a black X and the letters RR is posted well before a crossing. What does that advance sign tell you?
Show answer & explanation
Correct answer: A. The circular railroad advance sign gives you time to slow, scan both ways, and be ready to stop. Do not stop on the tracks. Circle plus X means rails are coming; the crossbuck at the tracks is the actual yield-to-train sign.
21. A sign at an intersection shows a left-curving arrow inside a red circle with a diagonal slash. What must you do there?
Show answer & explanation
Correct answer: D. A slashed left arrow forbids left turns at that intersection, often because turning across oncoming traffic there causes crashes or blocks flow. Plan another route, such as continuing straight and circling the block. The slash cancels only the movement shown.
22. Wide white stripes cross the pavement ahead, marking a crosswalk. What do these markings require of you as a driver?
Show answer & explanation
Correct answer: C. Crosswalk stripes show where pedestrians are expected to cross, and drivers must yield to people within them. You stop only when someone is crossing or a sign or signal requires it. Painted stripes mean feet ahead.
23. Two solid yellow lines run down the center of the road. What do they prohibit?
Show answer & explanation
Correct answer: D. Double solid yellow lines ban passing for traffic in both directions, because sight distance or traffic makes passing unsafe there. Crossing is generally allowed only to turn into a driveway or side road, not to overtake.
24. A yellow diamond sign ahead displays a bold T symbol. What does this sign mean you will have to do soon?
Show answer & explanation
Correct answer: D. A T-symbol warning means your road dead-ends at a cross street, so you must slow, yield to crossing traffic, and turn left or right. The letter T shows exactly how the roads meet ahead.
25. A white sign with a green arrow and the word ONLY is mounted beside a traffic signal. When may you move in that direction?
Show answer & explanation
Correct answer: B. A signal-mounted green arrow with ONLY ties that movement to the arrow indication. Go that way when the arrow is on and the path is clear; otherwise wait. Arrows assign time as well as direction.
Enter or Space also advances.