Real questions from the official Colorado driver handbook, each with a plain-English explanation. Free, unlimited retakes, no signup.

Smart Review drills only the questions you get wrong. Full-length mock exams in the real format. Progress saved on every device — and the same account unlocks the mobile app.
Get Smart Review & Mock ExamsThis draw of 20 questions breaks down like this:
Heaviest on Traffic Signs & Signals (5 of 20) — that is the section to revise first if you miss several here.
3 are Colorado-specific questions, drawn from the state handbook rather than general road rules.
Each test on this site draws a different set, so Test 1, 2 and 3 never repeat a question.
Answer: 0.04%
CDL drivers are limited to .04.
Answer: A full lane
Motorcycles are entitled to a full lane.
Answer: A dangerous, illegal distraction
Texting while driving is illegal and dangerous.
Answer: Where you want the car to go
Look and steer toward your intended path to recover from a skid.
Answer: Higher speed, wet roads, and slow reactions
Speed, poor road conditions, and slow reaction all lengthen your stopping distance.
Answer: Merging traffic — be ready to adjust
A merge sign warns that another roadway is joining yours; adjust speed/position to merge safely.
Answer: Still impaired driving — reactions and judgment are already affected
Impairment begins with the first drink; 'buzzed' driving is impaired driving.
Answer: Alcohol, illegal drugs, or even prescription/OTC medicine that impairs you
DUI covers alcohol AND any drug — including prescription or over-the-counter medicine — that impairs driving.
Answer: Is legal and appropriate for current conditions
Drive a legal speed suited to traffic, weather, and road conditions.
Answer: Detour — follow the marked alternate route
An orange detour sign directs you along a temporary alternate route.
Answer: The oncoming car going straight
A driver turning left must yield to oncoming traffic going straight through.
Answer: Red
Yellow means red is coming — stop if you safely can.
Answer: Food or lodging services nearby
Blue service signs use symbols for food, lodging, gas, and other services.
Answer: Get the car off the road if possible, turn on hazards, and stay clear of traffic
Move off the roadway, use hazards, and keep yourself away from moving traffic.
Answer: Give it a full lane width, just like a car
A motorcycle is entitled to a full lane. Never crowd or share a lane with one.
Answer: Through a window before the car sinks
Get out through a window quickly, before water pressure makes doors impossible to open.
Answer: Look over your shoulder and back slowly, watching for people and cars
Look behind you and back slowly, watching for pedestrians and vehicles.
Answer: Yield to the pedestrian before crossing the sidewalk
Vehicles crossing a sidewalk must yield to pedestrians already on it.
Answer: Left turn
Left arm straight out = a left turn.
Answer: No passing in either direction
Double solid yellow = no passing for traffic in either direction.
400+ questions for your state, lessons that teach every rule, and practice that drills only what you get wrong. Free to start.
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