Colorado doesn't publish its knowledge-test length and pass score on an official page we could confirm, so we don't state numbers here. The questions in this quiz are written in the style of Colorado's knowledge test, and Colorado's official driver handbook (linked below) is the source to study from.
Pick an answer on each question to see whether you got it right, with an explanation.
This is a short sample — DriveDrill has 200+ Colorado questions
and full-length mock exams in the app.
Q1. You are on a road that ends at a T intersection with no signs. You should:
A Yield to traffic on the through roadB Proceed because the through road must yieldC Turn right without yieldingD Stop only if a car is visible
At a T intersection the road that ends yields to the road that continues.
Q2. Before driving on a frosty morning you should:
A Wait for the heater to melt it while drivingB Clear a small patch on the windshieldC Clear all windows, mirrors, lights and the roofD Clear only the windshield and rear window
Driving with a peephole is a citation in most states, and snow left on the roof slides onto your windshield or the car behind you.
Q3. In Colorado, using a hand-held cell phone while driving is:
A Illegal for all drivers, but enforced as a secondary offenseB Banned in school and work zones, and texting is banned everywhereC Banned in work zones, and texting is banned everywhereD Illegal for all drivers
The state requires hands-free operation for every driver. Novice drivers are usually barred from using a phone at all, even hands-free.
Q4. In Colorado, if your high beams are on, you must dim them before coming within this distance of an oncoming vehicle:
A 50 feetB 100 feetC 1,000 feetD 500 feet
Failing to dim high beams in time can blind an oncoming driver with glare.
Q5. In Colorado, a first conviction for Driving While Ability Impaired (DWAI) applies at a blood alcohol content of:
A 0.05%B 0.10%C 0.08%D 0.02%
Colorado's DWAI standard applies at a lower blood alcohol level than a full DUI conviction.
Q6. Hazard lights should generally be used:
A While passing another vehicleB When your vehicle is stopped or moving unusually slowly and is a hazardC Any time you are in a hurryD Whenever it rains
In most states hazard lights while driving normally are prohibited because they hide your turn signals.
Q7. Grooves cut into the shoulder that make a loud noise when you drive over them are there to:
A Mark a bicycle laneB Warn you that you are drifting off the travel laneC Slow traffic in a work zoneD Drain water off the road
Rumble strips are a drowsiness and drift warning. If you hit one, ease back into the lane smoothly and consider stopping to rest.
Q8. In Colorado, if you cannot safely move out of the lane next to a stopped emergency vehicle, you must slow to:
A At least 20 mph slower in a zone of 45 mph or more, or 25 mph or less in a 40 mph zoneB Half the posted speed limitC At least 15 mph below the posted limitD At least 10 mph below the posted limit
Changing lanes is the first choice. The speed rule is what applies when traffic or the road makes a lane change unsafe.
Q9. Brown signs on a highway point to:
A Parks, campgrounds and recreational or historic sitesB Truck inspection stationsC Toll plazasD Emergency routes
Brown is the color for recreational and cultural interest areas: parks, campgrounds, ski areas, museums and historic sites, for example. Blue, by contrast, marks motorist services.
Q10. For drivers 21 and older, it is illegal to drive with a blood alcohol concentration at or above:
A 0.10%B 0.08%C 0.05%D 0.02%
0.08% is the per-se limit for adult drivers in most of the country. You can still be arrested below it if your driving is impaired.
DriveDrill is an independent study app. It is not affiliated with, endorsed by, or
connected to any state motor vehicle agency. These practice questions are written in
the style of Colorado's knowledge test and are not official test questions.