At an uncontrolled intersection where no traffic signs or signals are posted, two vehicles arrive at the same moment from directions that cross each other. Which driver has the right-of-way?

The driver approaching from the right of the other vehicle

The driver approaching from the left of the other vehicle

The driver traveling in the passing lane

The driver signaling for a turn, regardless of position

You are driving on a two-lane undivided road when a school bus ahead stops and activates its flashing red lights and stop arm. What must you do?

Stop and remain stopped until the lights stop flashing and the arm is retracted

Slow down and pass carefully once children are clear of the road

Stop only if children are visible getting on or off the bus

Proceed if you are in the opposite lane of travel

A pedestrian carrying a white cane begins crossing the street at an intersection ahead of you. What does this indicate, and what must you do?

The pedestrian may be blind or visually impaired, and you must stop and yield

The pedestrian is a road worker and you should honk to alert them

The cane is a warning that the crosswalk is closed

You may proceed slowly since the pedestrian will detect your vehicle

As you approach a roundabout, a vehicle is already circulating inside it and will pass in front of your entry point. What should you do?

Yield to the circulating vehicle before entering

Enter immediately since roundabouts use a first-come merge rule

Speed up to enter ahead of the circulating vehicle

Stop completely at the entry regardless of other traffic

You reach a stop sign at an intersection with no other traffic control present, and no other vehicles are nearby. What must you still do before proceeding?

Come to a complete stop, then proceed when it is safe

Slow down significantly but continue rolling through

Stop only if another vehicle is visibly approaching

Treat the sign as a yield sign if the intersection looks clear

You are traveling on a road that ends at a T-intersection with a through road, and no stop or yield signs are posted at the junction. Who has the right-of-way?

Traffic on the through road has the right-of-way over the terminating road

Whichever driver signals first has the right-of-way

Traffic on the terminating road has the right-of-way

The right-of-way is shared equally, so both must stop

You are backing your vehicle out of a driveway onto a public street where pedestrians and other vehicles are present. What is your responsibility?

Yield to all pedestrians and vehicles already on the street

Proceed at normal speed since street traffic must watch for you

Yield only to vehicles, since pedestrians are expected to yield to cars

Have the right-of-way once your vehicle is halfway into the street

You are driving through a parking lot's traffic lanes, which have no posted stop or yield signs, and you reach a junction with another lane at the same time as another car. What rule applies?

The same yield-to-the-right rule used at uncontrolled intersections applies

Parking lots have no right-of-way rules, so drivers must negotiate individually

The larger vehicle always has the right-of-way in a parking lot

Whoever is closest to a store entrance has the right-of-way

You approach an intersection controlled by a yield sign and see another vehicle already crossing through the intersection. What must you do?

Slow down or stop as needed to let the other vehicle clear the intersection

Maintain your speed since a yield sign only applies when signals are present

Stop completely at the yield sign regardless of other traffic

Proceed if you believe you can beat the other vehicle through

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PRACTICE ENGINE · COLORADO ROAD SIGNS

Colorado Road Signs Practice Test.
Free practice exam — 55 verified questions, instant feedback.

Written and reviewed by Vincent Ruan, EA, CFP®

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QUESTION 1 / 55Right-of-Way and Safe DrivingMedium0/0

An ambulance approaches from behind with its lights flashing and siren sounding while you are driving on a four-lane road. What should you do?

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1. An ambulance approaches from behind with its lights flashing and siren sounding while you are driving on a four-lane road. What should you do?
- A. Pull to the right edge of the roadway and stop until it passes
- B. Stop immediately in your current lane
- C. Speed up to clear the intersection ahead of it
- D. Continue at the same speed since it will pass around you
Show answer & explanation
Answer: A
Drivers must yield to an approaching emergency vehicle by pulling to the right and stopping, giving it a clear, safe path. Stopping abruptly in a travel lane blocks other traffic and can cause the emergency vehicle to swerve, while speeding up or holding your lane delays a vehicle that may be responding to a life-threatening call.
2. At an uncontrolled intersection where no traffic signs or signals are posted, two vehicles arrive at the same moment from directions that cross each other. Which driver has the right-of-way?
- A. The driver approaching from the right of the other vehicle
- B. The driver approaching from the left of the other vehicle
- C. The driver signaling for a turn, regardless of position
- D. The driver traveling in the passing lane
Show answer & explanation
Answer: A
When two vehicles reach an uncontrolled intersection at the same time, the universal right-of-way rule is to yield to the vehicle on your right. Assuming the vehicle to the left has the right-of-way reverses this rule and can cause a collision, since drivers on the left are the ones expected to wait.
3. You are driving on a two-lane undivided road when a school bus ahead stops and activates its flashing red lights and stop arm. What must you do?
- A. Slow down and pass carefully once children are clear of the road
- B. Stop only if children are visible getting on or off the bus
- C. Proceed if you are in the opposite lane of travel
- D. Stop and remain stopped until the lights stop flashing and the arm is retracted
Show answer & explanation
Answer: D
On an undivided road, traffic in both directions must stop for a school bus displaying flashing red lights and an extended stop arm, since children may cross in front of or behind the bus unexpectedly. Passing in the opposite lane or moving once children merely appear clear ignores that the stop signal itself, not visual judgment, controls when it is safe to proceed.
4. A pedestrian carrying a white cane begins crossing the street at an intersection ahead of you. What does this indicate, and what must you do?
- A. The pedestrian may be blind or visually impaired, and you must stop and yield
- B. The pedestrian is a road worker and you should honk to alert them
- C. The cane is a warning that the crosswalk is closed
- D. You may proceed slowly since the pedestrian will detect your vehicle
Show answer & explanation
Answer: A
A white cane is a widely recognized signal that a pedestrian is blind or has low vision, and drivers must come to a complete stop and yield the right-of-way rather than assuming the pedestrian can sense approaching traffic. Treating it as a construction signal or proceeding slowly ignores the safety purpose behind the cane.
5. As you approach a roundabout, a vehicle is already circulating inside it and will pass in front of your entry point. What should you do?
- A. Enter immediately since roundabouts use a first-come merge rule
- B. Stop completely at the entry regardless of other traffic
- C. Speed up to enter ahead of the circulating vehicle
- D. Yield to the circulating vehicle before entering
Show answer & explanation
Answer: D
Vehicles already inside a roundabout have the right-of-way over vehicles entering, so drivers approaching the entry point must yield until there is a safe gap. Racing to enter ahead of circulating traffic or assuming a first-come merge defeats the design that keeps roundabout traffic flowing without cross-conflicts.
6. You reach a stop sign at an intersection with no other traffic control present, and no other vehicles are nearby. What must you still do before proceeding?
- A. Slow down significantly but continue rolling through
- B. Treat the sign as a yield sign if the intersection looks clear
- C. Stop only if another vehicle is visibly approaching
- D. Come to a complete stop, then proceed when it is safe
Show answer & explanation
Answer: D
A stop sign requires a full and complete stop every time, regardless of whether other traffic is visible, because sightlines can be deceptive and cross traffic may appear suddenly. Rolling through or treating it as a yield sign ignores the sign's specific legal requirement to stop completely.
7. You are traveling on a road that ends at a T-intersection with a through road, and no stop or yield signs are posted at the junction. Who has the right-of-way?
- A. Whichever driver signals first has the right-of-way
- B. Traffic on the through road has the right-of-way over the terminating road
- C. Traffic on the terminating road has the right-of-way
- D. The right-of-way is shared equally, so both must stop
Show answer & explanation
Answer: B
At an uncontrolled T-intersection, the road that continues through the junction is treated as the through road, and traffic ending at the junction must yield to it, even without posted signs. Assuming shared or reversed priority ignores the basic geometry-based right-of-way rule that governs these junctions.
8. You are backing your vehicle out of a driveway onto a public street where pedestrians and other vehicles are present. What is your responsibility?
- A. Yield to all pedestrians and vehicles already on the street
- B. Have the right-of-way once your vehicle is halfway into the street
- C. Proceed at normal speed since street traffic must watch for you
- D. Yield only to vehicles, since pedestrians are expected to yield to cars
Show answer & explanation
Answer: A
A driver backing out of a driveway is entering a roadway already occupied by others, so the responsibility to yield to pedestrians and vehicles already on the street falls on the driver backing out. Believing that street traffic must watch for you or that partial entry grants priority reverses this responsibility.
9. You are driving through a parking lot's traffic lanes, which have no posted stop or yield signs, and you reach a junction with another lane at the same time as another car. What rule applies?
- A. Whoever is closest to a store entrance has the right-of-way
- B. The larger vehicle always has the right-of-way in a parking lot
- C. Parking lots have no right-of-way rules, so drivers must negotiate individually
- D. The same yield-to-the-right rule used at uncontrolled intersections applies
Show answer & explanation
Answer: D
Even though parking lot lanes are not public through-roads, the same general right-of-way principle used at uncontrolled intersections still applies, meaning the driver on the left yields to the driver on the right. Assuming there are no rules, or that vehicle size or destination determines priority, leads to unpredictable and unsafe outcomes.
10. You approach an intersection controlled by a yield sign and see another vehicle already crossing through the intersection. What must you do?
- A. Proceed if you believe you can beat the other vehicle through
- B. Maintain your speed since a yield sign only applies when signals are present
- C. Stop completely at the yield sign regardless of other traffic
- D. Slow down or stop as needed to let the other vehicle clear the intersection
Show answer & explanation
Answer: D
A yield sign requires a driver to slow down, and if necessary come to a complete stop, to let crossing traffic clear the intersection safely before proceeding. It does not always demand a full stop the way a stop sign does, but racing through based on a guess about timing defeats its purpose.
11. Four vehicles arrive at a four-way stop intersection at roughly the same moment, one from each direction. In what order should they proceed?
- A. The vehicle turning right always proceeds first regardless of arrival order
- B. All four vehicles may proceed simultaneously since each faces its own stop sign
- C. The vehicle with the most passengers proceeds first for safety
- D. Each driver proceeds in turn, yielding to the vehicle on their right when order is unclear
Show answer & explanation
Answer: D
At a four-way stop, the general rule is that the first vehicle to stop proceeds first, and when arrival is essentially simultaneous, each driver yields to the vehicle on their right to establish a clear order. Proceeding simultaneously or basing order on turn direction or passenger count ignores the sequential nature of a four-way stop.
12. A pedestrian is crossing at a marked crosswalk that has no traffic signal, and you are approaching in your vehicle. What is required of you?
- A. Proceed at normal speed since crosswalks without signals are optional to observe
- B. Yield only if the pedestrian is more than halfway across
- C. Sound your horn and proceed if the pedestrian does not move faster
- D. Stop and yield to the pedestrian until they have crossed safely
Show answer & explanation
Answer: D
A marked crosswalk gives pedestrians the right-of-way whether or not a signal is present, so an approaching driver must stop and wait until the pedestrian has crossed safely. Treating the crosswalk as optional, waiting for the pedestrian to be halfway, or pressuring them with a horn all disregard the pedestrian's priority.
13. You see a five-sided pentagon-shaped sign, yellow with a black symbol of children walking, near a road you are traveling on. What does this indicate?
- A. A school zone or school crossing is ahead
- B. A playground with no vehicle access is ahead
- C. A pedestrian-only park entrance is ahead
- D. A hospital zone requiring reduced noise is ahead
Show answer & explanation
Answer: A
The pentagon, or house-shaped, sign is uniquely reserved for school-related warnings, distinguishing it from every other warning sign shape so drivers can recognize a school zone or crossing quickly. Confusing it with a park or hospital sign could cause a driver to miss the need to watch closely for children.
14. You are driving on a two-lane road and notice a solid yellow line on your side of the centerline, with a broken yellow line on the opposing side. What does this mean for you?
- A. Passing is permitted for you but not for oncoming traffic
- B. Passing is prohibited for you, but permitted for oncoming traffic
- C. Passing is prohibited for both directions of traffic
- D. The road is one-way in your direction only
Show answer & explanation
Answer: B
A solid yellow line paired with a broken yellow line on the opposite side means passing is restricted only for the driver on the solid-line side, while the driver facing the broken line may pass when safe. Assuming both directions are restricted, or that the rule is reversed, misreads how the two line types work together.
15. You see a rectangular sign that is white with black lettering, posted at the edge of the road stating a specific traffic law. What type of sign is this?
- A. A service sign indicating a nearby amenity
- B. A regulatory sign that states a legal requirement drivers must obey
- C. A guide sign providing route or destination information
- D. A warning sign alerting to a temporary hazard
Show answer & explanation
Answer: B
White rectangular signs with black lettering are the standard color scheme for regulatory signs, which state legal requirements such as speed limits or turn restrictions that carry the force of law. Warning signs use yellow, guide signs use green, and service signs typically use blue, so color alone helps identify the sign's purpose.
16. You see a blue rectangular sign along the highway showing symbols for a gas pump and a fork and knife. What is this sign telling you?
- A. The next rest area is closed for maintenance
- B. Nearby services such as fuel and food are available at the next exit
- C. A hospital emergency room is directly ahead
- D. A toll is required to continue on this route
Show answer & explanation
Answer: B
Blue signs are the standard color for motorist services, using simple symbols like a gas pump or utensils to indicate nearby fuel, food, or lodging options without requiring drivers to read detailed text. Confusing this with an emergency or toll sign could cause a driver to miss genuinely useful information about upcoming services.
17. Nearly all warning signs you encounter on the roadway share the same two colors. What are those colors?
- A. Orange background with black symbols or text
- B. Red background with white symbols or text
- C. Yellow background with black symbols or text
- D. White background with red symbols or text
Show answer & explanation
Answer: C
Yellow with black markings is the standard color pairing for warning signs under the national uniform sign system, chosen for high visibility of an upcoming hazard or change in road conditions. Red and white are reserved mainly for stop and regulatory prohibition signs, while orange is used specifically for temporary work zones.
18. You see a circular white sign with a black U-turn arrow crossed out by a red slash posted at an intersection. What must you do?
- A. Make a U-turn only if no other traffic is present
- B. Turn left instead of making a U-turn
- C. Avoid making a U-turn at that location
- D. Proceed straight only, since left turns are also banned
Show answer & explanation
Answer: C
A circular sign with a red slash through a symbol is the standard format for prohibiting that specific action, so a crossed-out U-turn arrow means U-turns are not allowed at that location under any traffic condition. It does not address left turns, which may still be permitted unless separately restricted.
19. You approach the exit end of a divided highway ramp and see a red circular sign with a white horizontal bar reading 'DO NOT ENTER.' What should you conclude?
- A. You may enter if driving a commercial vehicle
- B. The ramp is temporarily closed for cleaning only
- C. You are facing traffic moving toward you if you proceed, and must not enter
- D. The sign only applies during rush hour periods
Show answer & explanation
Answer: C
A Do Not Enter sign posted at a ramp or roadway means that entering would put you against the flow of traffic, creating a serious head-on collision risk, and the prohibition applies to all vehicles at all times, not just certain vehicle types or hours. Assuming it is temporary or vehicle-specific misunderstands its purpose as a wrong-way prevention sign.
20. As you approach a sharp curve, you notice a series of black and yellow arrow-shaped signs mounted along the outside of the curve. What is the purpose of these signs?
- A. To mark the location of a hidden driveway
- B. To warn of an upcoming railroad crossing
- C. To indicate a merging lane ahead
- D. To show the direction and severity of the curve so you can adjust your path
Show answer & explanation
Answer: D
Chevron signs are placed in a series along sharp curves to visually trace the roadway's path, helping drivers gauge how sharply the road turns and adjust their speed and steering before entering the curve. They are unrelated to driveways, merges, or railroad crossings, which use their own distinct sign shapes.
21. While driving at highway speed on a wet road, you feel your steering suddenly become light and unresponsive. What is most likely happening, and how should you respond?
- A. Your tires have lost air pressure, so you should brake hard immediately
- B. You may be hydroplaning, so ease off the accelerator without braking hard or turning sharply
- C. The road surface is icy, so you should accelerate to regain traction
- D. Your brakes are failing, so you should pump the brake pedal repeatedly
Show answer & explanation
Answer: B
A sudden light or unresponsive feeling in the steering at speed on a wet road is a classic sign of hydroplaning, where a layer of water lifts the tires off the pavement, and the correct response is to ease off the gas smoothly while avoiding hard braking or sharp steering that could cause a skid. Hard braking or sharp turns in this state can make the vehicle spin out of control.
22. You see a yellow diamond warning sign for a curve, followed by a smaller black-and-white rectangular plate below it showing a lower speed number. What does that lower number represent?
- A. The legal minimum speed required through the curve
- B. A recommended advisory speed for safely navigating the curve
- C. The distance in feet to the start of the curve
- D. A speed limit that only applies to commercial trucks
Show answer & explanation
Answer: B
The smaller plate beneath a curve warning sign shows an advisory speed, a recommended safe speed for that curve under normal conditions, rather than a legally enforced minimum or a distance marker. Advisory speeds can apply to all vehicles, not just commercial trucks, and ignoring them going into a curve increases the risk of losing control.
23. Normal dry-pavement guidance suggests keeping at least a few seconds of following distance behind the vehicle ahead. How should you adjust this distance in heavy rain or snow?
- A. Increase the following distance well beyond the normal dry-pavement guideline
- B. Following distance guidelines apply only to highway driving, not local roads
- C. Keep the same following distance since braking systems compensate automatically
- D. Decrease the following distance slightly to keep pace with slowed traffic
Show answer & explanation
Answer: A
Wet or snowy pavement significantly increases stopping distances because tires lose traction, so drivers should increase their following distance well beyond what is appropriate on dry pavement to allow more time and space to stop safely. Keeping the same distance or reducing it ignores the reduced traction and longer stopping distances these conditions create.
24. You are descending a long, steep mountain grade and want to avoid overheating your brakes from continuous use. What technique should you use?
- A. Accelerate briefly between brake applications to save brake pads
- B. Shift to a lower gear and use engine braking to control your speed
- C. Coast in neutral to reduce wear on the drivetrain
- D. Ride the brake pedal lightly and continuously the entire way down
Show answer & explanation
Answer: B
Shifting into a lower gear lets the engine's compression help slow the vehicle, reducing how much the brakes must work on a long downgrade and helping prevent brake fade from overheating. Riding the brakes continuously is exactly the behavior that causes overheating, and coasting in neutral removes engine braking entirely while reducing control.
25. You turn onto a road with a loose gravel surface after driving on paved roads. How should this change your driving?
- A. Increase your speed slightly since gravel resists skidding better than pavement
- B. Drive only in the center of the road regardless of oncoming traffic
- C. Reduce your speed since loose gravel reduces tire traction
- D. Maintain your usual speed since gravel roads are rated for higher speeds
Show answer & explanation
Answer: C
Loose gravel provides significantly less traction than paved surfaces, making braking, turning, and acceleration all less predictable, so reducing speed is the appropriate response. Assuming gravel resists skidding or supports normal highway speeds ignores how easily loose material shifts under the tires.
26. You are driving after dark on a road you are unfamiliar with, relying only on your headlights to see ahead. Why should you generally drive slower than you would in daylight on the same road?
- A. Tires generate more heat at night, increasing blowout risk
- B. Your headlights illuminate a shorter distance than you can see in daylight, reducing reaction time
- C. Speed limits automatically drop by half after sunset on all roads
- D. Nighttime traffic laws require a slower minimum speed than daytime
Show answer & explanation
Answer: B
Headlights only illuminate a limited distance ahead compared to natural daylight, which shortens the distance in which you can spot and react to hazards, making reduced speed a reasonable precaution on unfamiliar roads after dark. Speed limits do not automatically halve at night, and tire heat and nighttime minimum speed laws are not the relevant factors here.
27. A driver who has consumed alcohol before driving typically experiences which of the following effects, even at low levels of impairment?
- A. Slower reaction time and reduced judgment
- B. Faster reflexes due to increased alertness
- C. Improved night vision from pupil dilation
- D. Sharper focus on the road immediately ahead
Show answer & explanation
Answer: A
Alcohol is a depressant that slows the central nervous system, which impairs reaction time and clouds judgment even before a person feels noticeably intoxicated. It does not sharpen focus, improve night vision, or speed up reflexes, and drivers who feel more confident after drinking are often experiencing impaired judgment rather than genuine improvement.
28. Research on driver impairment has found that severe drowsiness while driving can produce effects on reaction time and judgment similar to what other common driving hazard?
- A. Driving with an underinflated tire
- B. Driving with a dirty windshield
- C. Driving after consuming alcohol
- D. Driving with a distracting radio station
Show answer & explanation
Answer: C
Studies on fatigue have consistently found that severe drowsiness can impair reaction time, judgment, and attention in ways comparable to alcohol impairment, which is why drowsy driving is treated as seriously as impaired driving in safety guidance. A dirty windshield or distracting radio are separate, unrelated hazards rather than physiological impairments.
29. Compared to drivers of legal drinking age, drivers under the legal drinking age face what kind of alcohol tolerance standard while operating a vehicle?
- A. A much stricter standard, since any detectable alcohol can result in a violation
- B. A more lenient standard, intended to account for lower body weight
- C. No standard at all, since only adult drivers are subject to alcohol laws
- D. An identical standard, since impairment thresholds do not vary by age
Show answer & explanation
Answer: A
Because underage drinking is illegal outright, drivers under the legal drinking age are generally held to a much stricter zero-tolerance standard where even a small, otherwise-legal amount of detectable alcohol can result in a violation, unlike the higher impairment threshold applied to of-age drivers. There is no age group exempt from alcohol-related driving laws.
30. A driver lawfully stopped on suspicion of impaired driving refuses to take a requested chemical sobriety test. What is a general consequence of this refusal?
- A. Refusal has no legal consequence as long as the driver later passes a field sobriety check
- B. The driver's license can be suspended or revoked administratively for the refusal itself
- C. Refusing the test guarantees the driver cannot be charged with impaired driving
- D. The officer must release the driver immediately without further action
Show answer & explanation
Answer: B
Most states enforce an implied consent framework, meaning that by driving on public roads a person has already agreed to chemical testing when lawfully requested, and refusing that test typically triggers its own administrative license suspension separate from any impaired driving charge. Refusing does not guarantee avoiding a charge, since other evidence of impairment can still be used.
31. A passenger in your vehicle has an open container of an alcoholic beverage while the vehicle is being driven on a public road. What is generally true about this situation?
- A. It is only a violation if the vehicle is currently in motion above a certain speed
- B. It is legal as long as the driver is not the one drinking
- C. It is generally illegal regardless of whether the driver personally is drinking
- D. It is legal as long as the container is kept below window level
Show answer & explanation
Answer: C
Open container laws generally prohibit having an accessible open alcoholic beverage anywhere in the passenger area of a vehicle on a public road, regardless of who is drinking it or how fast the vehicle is traveling. Believing that only the driver's own drinking matters, or that container placement or speed changes the outcome, misunderstands the purpose of keeping alcohol inaccessible while driving.
32. Impaired driving laws are generally written to cover which of the following substances affecting a driver's ability to operate safely?
- A. Only substances that show up on a standard roadside breath test
- B. Only alcohol, since other substances are addressed by separate laws entirely
- C. Alcohol, illegal drugs, and impairing prescription or over-the-counter medications alike
- D. Only illegal street drugs, since alcohol and medication are treated differently
Show answer & explanation
Answer: C
Impaired driving statutes are typically written broadly to cover any substance, whether alcohol, illegal drugs, or legal medication, that affects a driver's ability to operate a vehicle safely, rather than being limited to whatever a breath test can detect. Narrowing the definition to alcohol or illegal drugs alone would leave clearly dangerous impairment from other substances unaddressed.
33. A driver who is already fatigued after a long day chooses to have a couple of alcoholic drinks before driving home. How do fatigue and alcohol typically interact in terms of impairment?
- A. Fatigue has no measurable effect once any alcohol is present
- B. They cancel each other out, since alcohol temporarily masks tiredness
- C. Alcohol only affects impairment once fatigue has fully worn off
- D. They compound each other, producing a greater impairment than either factor alone
Show answer & explanation
Answer: D
Fatigue and alcohol both slow reaction time and impair judgment through related mechanisms, so combining them tends to compound the overall impairment rather than one masking or canceling the other. The perception that alcohol offsets tiredness is itself a dangerous illusion, since the underlying physical and cognitive slowing from both factors remains and often worsens.
34. You are approaching a green light and it changes to steady yellow while you are still a reasonable distance from the intersection. What does the steady yellow signal indicate?
- A. You must accelerate to clear the intersection before the light changes
- B. The light is about to turn red, and you should stop if you can do so safely
- C. The signal is malfunctioning and should be treated as a four-way stop
- D. Yellow means yield only to pedestrians already in the crosswalk
Show answer & explanation
Answer: B
A steady yellow light warns that the signal is about to turn red, and a driver who can stop safely before the intersection is expected to do so rather than speeding up to beat the change. Treating yellow as a signal to accelerate increases the risk of running a red light or colliding with cross traffic that has already been given a green.
35. You are in a left-turn lane and the signal displays a flashing yellow arrow pointing left. What does this specific signal allow you to do?
- A. Turn left with no need to yield, since the arrow grants full priority
- B. Turn left only if a police officer is directing traffic
- C. Turn left after yielding to oncoming traffic and pedestrians
- D. Wait, since a flashing yellow arrow means turns are prohibited
Show answer & explanation
Answer: C
A flashing yellow arrow for a turn lane means the turn is permitted, but only after yielding to oncoming traffic and any pedestrians in the crosswalk, unlike a solid green arrow which grants an unopposed turn. Assuming the flashing yellow arrow prohibits turns entirely, or grants full priority without yielding, misunderstands its specific permissive-but-cautious meaning.
36. You are driving and approach a crosswalk where the pedestrian signal is now showing a solid don't-walk or raised-hand symbol. What does this indicate about pedestrians already in the crosswalk?
- A. Pedestrians already in the crosswalk should be allowed to finish crossing safely
- B. Drivers may proceed immediately since the walk period has officially ended
- C. The signal has no bearing on vehicle traffic at all
- D. Pedestrians already in the crosswalk have no further right-of-way once the signal changes
Show answer & explanation
Answer: A
A solid don't-walk or raised-hand symbol tells pedestrians not to begin crossing, but anyone already partway through the crosswalk is still expected to finish crossing safely, and drivers must continue to yield to them. Assuming the signal instantly strips pedestrians of the right-of-way, or that it has no effect on driving behavior, ignores the real safety risk to someone still in the roadway.
37. A driver holding only a learner's permit wants to practice driving on a public road. What is generally required for this to be legal?
- A. The permit holder must complete the drive without any passengers at all
- B. A licensed adult must be present in the vehicle to supervise
- C. A licensed adult must follow behind in a separate vehicle
- D. No supervision is required as long as the drive occurs during daylight
Show answer & explanation
Answer: B
A learner's permit generally allows practice driving only when accompanied by a licensed adult seated in the vehicle who can supervise and take action if needed, rather than a supervisor following in another car or no supervision at all. This in-vehicle supervision requirement is a foundational part of graduated licensing systems used to build experience safely before independent driving.
38. A newly licensed teen driver on a provisional license is considering driving late at night with several friends in the car. Why might graduated licensing rules restrict this specific situation?
- A. Graduated licensing rules apply only to vehicle types, not driver behavior
- B. Provisional licenses only restrict vehicle color and modifications, not driving conditions
- C. The restriction exists purely to limit fuel consumption among new drivers
- D. Both nighttime driving and multiple passengers are statistically linked to higher crash risk for newly licensed drivers
Show answer & explanation
Answer: D
Graduated licensing systems commonly limit nighttime driving and the number of passengers for newly licensed drivers because both factors are associated with increased crash risk while a driver is still building experience and judgment behind the wheel. The restrictions target genuine safety risk factors, not unrelated matters like fuel use or vehicle appearance.
39. You see a sign shaped like an eight-sided octagon ahead on the roadway, colored red with white lettering. What does this shape universally indicate?
- A. A no-entry warning for one-way streets
- B. A railroad crossing warning
- C. A stop sign, requiring a complete stop
- D. A yield sign, requiring a slowdown only
Show answer & explanation
Answer: C
The octagon shape is reserved exclusively for stop signs under the national sign standard, making it recognizable even without reading the text, such as at night or from a distance. A yield sign uses a triangular shape, so confusing the two shapes could cause a driver to slow rather than fully stop when required.
40. A downward-pointing triangular sign with a red border appears at an intersection ahead. What action does this sign require?
- A. Merge left because the right lane is ending
- B. Slow down and yield the right-of-way to other traffic
- C. Stop completely regardless of other traffic
- D. Prepare for a sharp curve in the road
Show answer & explanation
Answer: B
A downward triangle is the standard shape reserved for yield signs, telling drivers to slow and give the right-of-way to cross traffic or merging vehicles without necessarily coming to a full stop. Treating it as a mandatory full stop confuses it with the octagonal stop sign.
41. You are driving and notice a funeral procession with headlights on moving together through an intersection. How should you respond?
- A. Merge into the procession to pass through with them
- B. Yield to the entire procession even after your light turns green
- C. Proceed through as soon as your own signal is green
- D. Only yield to the lead vehicle, then proceed normally
Show answer & explanation
Answer: B
Funeral processions are generally treated as a single unit moving through traffic together, so other drivers should let the whole procession pass rather than cutting between vehicles or treating a green light as permission to interrupt it. Yielding only to the lead car ignores the vehicles still crossing behind it.
42. You are entering a freeway from an acceleration lane and see a gap in traffic forming in the right lane. What is the safest approach?
- A. Match the speed of freeway traffic and merge smoothly into the gap
- B. Merge from a full stop once no vehicles are visible
- C. Merge at a slower speed and let freeway traffic adjust around you
- D. Stop at the end of the acceleration lane and wait for a larger gap
Show answer & explanation
Answer: A
Merging safely onto a freeway means accelerating to match the flow of traffic so you can slide into a gap without forcing following vehicles to brake sharply. Stopping or merging well below the prevailing speed in an acceleration lane creates a serious rear-end collision risk for traffic approaching from behind.
43. You are stopped at a green light waiting to turn left, and oncoming traffic is approaching with no left-turn signal present. What must you do?
- A. Wave the oncoming driver through before turning
- B. Yield to oncoming traffic before completing the turn
- C. Turn only if oncoming traffic is signaling a turn of its own
- D. Turn immediately since the green light grants you priority
Show answer & explanation
Answer: B
A green light without a dedicated left-turn arrow means you may turn left only after yielding to oncoming vehicles and pedestrians, since the signal does not remove the oncoming traffic's right-of-way. Treating the green light as automatic priority is a common cause of intersection collisions.
44. You are approaching a bicyclist riding near the right edge of a narrow lane that is too narrow to share side by side. What should you do?
- A. Straddle the center line while passing without changing lanes
- B. Change lanes or wait for a safe gap before passing at a safe distance
- C. Sound your horn and pass quickly within the same lane
- D. Follow closely until the cyclist waves you past
Show answer & explanation
Answer: B
When a lane is too narrow to safely share, a driver should move into an adjacent lane or wait for room to pass the cyclist with adequate clearance, rather than squeezing past within the same lane or straddling the centerline into oncoming traffic. Following closely and expecting a hand signal puts the cyclist at risk from a following vehicle.
45. You approach a railroad crossing where the gates are up and lights are not flashing, but you can see a train approaching in the distance. What should you do?
- A. Wait only if a crossing attendant is present to direct you
- B. Cross quickly since inactive signals mean it is legally safe to proceed
- C. Stop and wait, since a visible train always has the right-of-way regardless of the signal state
- D. Proceed at reduced speed while watching for the train
Show answer & explanation
Answer: C
Signal equipment can malfunction, so a visibly approaching train always takes priority over what the gates or lights indicate, and a driver who sees a train must stop and wait regardless of an inactive warning system. Relying on the absence of flashing lights as proof of safety can be fatal if the equipment has failed.
46. You notice a diamond-shaped sign with a black symbol on a yellow background posted before a curve in the road. What category of sign is this?
- A. A general warning sign alerting drivers to a hazard or changing condition ahead
- B. A service sign indicating nearby fuel or food
- C. A regulatory sign that carries a legal penalty if ignored
- D. A guide sign showing distances to nearby towns
Show answer & explanation
Answer: A
The yellow diamond shape is the standard format for warning signs, which alert drivers to hazards such as curves, intersections, or narrow bridges rather than imposing a specific legal command. Regulatory signs are typically white and rectangular, while guide and service signs use green and blue respectively.
47. You see a round, yellow sign with a black X and the letters 'RR' posted along the roadway ahead. What is this sign warning you about?
- A. An upcoming roundabout intersection
- B. A reduced speed zone for road repairs
- C. An upcoming railroad crossing
- D. A restricted road ahead for trucks only
Show answer & explanation
Answer: C
The circular shape combined with the black X and 'RR' lettering is the standard advance warning sign for a railroad crossing, giving drivers advance notice to slow down and prepare to stop if a train is present. The circular shape is otherwise rarely used for other warnings, which helps this sign stand out to drivers.
48. While driving on a highway, you see a large green rectangular sign listing an upcoming exit number and destination city. What category of sign is this?
- A. A warning sign for a hazard ahead
- B. A guide sign providing directional or destination information
- C. A service sign for nearby fuel and lodging
- D. A regulatory sign enforcing a mandatory action
Show answer & explanation
Answer: B
Green is the standard color used for guide signs, which provide route numbers, exit information, and directions to destinations rather than commanding a specific action or warning of danger. Blue is reserved for service signs, and confusing the two could cause a driver to expect fuel or food information instead of route guidance.
49. You approach a work zone and see several signs that are orange with black lettering and symbols. What does the orange color specifically indicate?
- A. A scenic route or historical marker
- B. A wildlife crossing area
- C. Temporary conditions related to construction or road work
- D. A permanent regulatory requirement
Show answer & explanation
Answer: C
Orange is reserved specifically for temporary traffic control, marking construction and maintenance zones so drivers can distinguish work-zone warnings from the yellow used for permanent hazard warnings. Treating orange as permanent regulation or a scenic marker misses the temporary, safety-critical nature these signs are meant to convey.
50. You see a rectangular black and white sign with a single bold arrow pointing in one direction, mounted above an intersection you are approaching. What does this sign indicate?
- A. You must turn in the direction the arrow points at this exact intersection
- B. The road ahead is closed to all traffic
- C. The arrow shows the direction of a detour route only
- D. The street ahead carries traffic in one direction only
Show answer & explanation
Answer: D
A one-way sign with a single directional arrow tells drivers that the street they are entering carries traffic in only that direction, not that they are required to turn immediately at that intersection. Mistaking it for a mandatory turn or a closure sign could cause a driver to make an unsafe or unnecessary maneuver.
51. You are driving in dense fog that significantly limits your visibility of the road ahead. What is the safest adjustment to your driving?
- A. Turn on your high-beam headlights to see farther ahead
- B. Reduce your speed and increase your following distance
- C. Maintain your normal speed but follow closely to see taillights ahead
- D. Turn on your hazard lights and continue at normal speed
Show answer & explanation
Answer: B
In fog, reducing speed and increasing following distance gives you more time to react to hazards that appear suddenly out of limited visibility. High beams actually reflect off fog and reduce visibility further, and following closely to use another car's taillights as a guide removes your own margin for stopping safely.
52. You are driving on a bridge in freezing temperatures and the road surface appears wet but is actually coated in a thin, nearly invisible layer of ice. What driving hazard does this describe, and what should you do?
- A. This is a painted lane marking reflecting light, so no adjustment is needed
- B. This is road glare, so you should use your windshield wipers and continue at normal speed
- C. This is standing water, so you should straddle the centerline to avoid it
- D. This is black ice, so you should slow down well before the bridge and avoid sudden steering or braking
Show answer & explanation
Answer: D
Black ice forms most often on bridges and overpasses because cold air circulates on both sides, and it is dangerous specifically because it looks like a harmless wet patch rather than ice. Slowing down before reaching the icy surface and avoiding sudden steering or braking reduces the chance of an uncontrollable skid, unlike misreading the hazard as glare or standing water.
53. You enter a highway work zone where orange signs indicate a reduced speed limit and workers are present near the travel lanes. What is expected of you?
- A. Speed up briefly to clear the work zone as quickly as possible
- B. Only slow down if you can see a worker directly in your lane
- C. Slow to the posted work-zone speed and stay alert for workers and equipment
- D. Maintain the normal highway speed limit since work zones only restrict trucks
Show answer & explanation
Answer: C
Work zones post reduced speed limits because workers, equipment, and lane shifts create hazards that require extra caution and reaction time, and this applies to all vehicles, not just trucks. Speeding through or waiting to see a worker directly in your lane before slowing removes the safety margin the reduced limit is meant to provide.
54. A driver takes a legally prescribed medication that causes drowsiness, as noted on the label, and then drives while feeling its effects. What is true about this situation?
- A. Prescription warnings are only a legal formality with no real driving risk
- B. The driver is exempt from impaired driving laws because a doctor prescribed the medication
- C. Only illegal drugs can result in an impaired driving violation
- D. The driver can still be considered impaired and held responsible, even though the drug is legal
Show answer & explanation
Answer: D
Impairment laws focus on a driver's actual ability to operate a vehicle safely, not on whether a substance was obtained legally, so a legally prescribed medication that impairs driving ability can still result in an impaired driving violation. Assuming a prescription grants automatic immunity ignores the real safety risk that sedating medications can create.
55. At an intersection with a signal that is flashing, one approach shows a flashing red light while the cross street shows a flashing yellow light. How should each driver respond?
- A. The driver facing flashing yellow must stop, while the flashing red side may proceed
- B. Both drivers may proceed without stopping since the signal is flashing, not solid
- C. The driver facing flashing red must stop, while the driver facing flashing yellow may proceed with caution after slowing
- D. Both drivers must come to a complete stop before proceeding
Show answer & explanation
Answer: C
A flashing red signal is treated like a stop sign, requiring a full stop before proceeding when safe, while a flashing yellow signal simply warns drivers to slow down and proceed with caution rather than stop. Reversing which color requires the stop, or assuming a flashing signal removes all obligation to slow or stop, misreads the different meanings of each flashing color.

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Key facts: Colorado Road Signs exam

Exam fee

The Colorado Road Signs is administered by Colorado Department of Revenue, Division of Motor Vehicles (DMV).

This free Colorado Road Signs practice test has 55 original questions written to Colorado Department of Revenue, Division of Motor Vehicles (DMV)'s official content outline, last checked against it on August 9, 2026. Every question shows a worked explanation, and nothing here requires a signup.

As of 2026, the Colorado Road Signs exam fee is $0 (the handbook confirms road signs are covered on the knowledge test, but Colorado does not publish a total question count or passing score).

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Official sources

Every exam fact on this page traces to a primary document published by the body that administers the exam.

Colorado Permits and First-Time Driver License | Colorado DMVColorado Division of Motor Vehiclesdmv.colorado.gov
DR 2337 Colorado Driver HandbookColorado Division of Motor Vehiclesdmv.colorado.gov
Colorado Permits and First-Time Driver License (Colorado Department of Revenue — Motor Vehicle)Colorado Division of Motor Vehiclesdmv.colorado.gov
State DMV Fees | Colorado DMVColorado Division of Motor Vehiclesdmv.colorado.gov
@Home Driving Knowledge Tests (Colorado Department of Revenue — Motor Vehicle)Colorado Division of Motor Vehiclesdmv.colorado.gov
Colorado driver knowledge test — official test descriptionColorado Department of Revenue, Division of Motor Vehicles (DMV)dmv.colorado.gov

Last verified against the official exam content outline: August 9, 2026

Frequently asked questions

How many questions are on the real Colorado written knowledge test?

Colorado's Division of Motor Vehicles does not publish an exact question count for the knowledge test. Because of that, this practice test focuses on giving you broad exposure to sign recognition and rules-of-the-road questions rather than matching a specific count.

What score do I need to pass the Colorado permit knowledge test?

Colorado does not publish an official passing percentage for the knowledge test, so treat any specific score you see elsewhere as unofficial. The safest approach is to keep practicing until you're consistently answering road-sign and rules questions correctly.

Is the road-signs portion tested separately from the rest of the Colorado exam?

No. Road signs are folded into the same knowledge test as the rest of the Colorado Driver Handbook, alongside topics like impaired driving and general driving rules. There isn't a standalone signs-only exam you take on its own.

How should I use this practice test to prepare for the real thing?

Work through the questions, read the explanation for any sign or rule you miss, and repeat the set until the miss rate drops close to zero. Pairing practice questions with a pass through the official handbook is the most reliable way to catch gaps.

Is this Colorado road-signs practice test free, and do I need to sign up?

Yes. The practice test is free to use and does not require creating an account or providing any personal information.

What topics beyond road signs show up on the Colorado knowledge test?

Beyond sign recognition, the test draws on the full Colorado Driver Handbook, including impaired-driving law, general driving rules, and other safety and legal topics.