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Colorado Permit Test: Alcohol & Drugs Practice Questions
BAC limits, implied consent and DUI penalties.
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Question 1
What is the difference between DWAI and DUI in Colorado?
They are the same offense
DWAI is only for drugs; DUI is only for alcohol
DWAI applies only to drivers under 21
DWAI means impaired to the slightest degree; DUI means substantially incapable of safe driving
Correct answer: DWAI means impaired to the slightest degree; DUI means substantially incapable of safe driving
DWAI means the driver is impaired to the slightest degree; DUI means substantially incapable of safe driving.
Source: Driving Under the Influence
Question 2
Above what BAC can a Colorado driver be convicted of DUI per se?
0.05%
0.02%
0.10%, the older national limit
0.08%
Correct answer: 0.08%
A driver may be convicted of DUI per se if the BAC is greater than 0.08%.
Source: Driving Under the Influence
Question 3
For a Colorado driver under 21, a license may be revoked based on a BAC over:
0.05
0.08, the same as adults
0.02
0.04
Correct answer: 0.02
Revocation can be based on a BAC over .08, over .02 for drivers under 21, or over .04 for CDL drivers.
Source: Driving Under the Influence
Question 4
According to Colorado's Table 1, how many points toward suspension does a first DWAI carry?
6
8
12, which means automatic suspension
4
Correct answer: 8
A first DWAI (0.05% BAC) carries 8 points, a $200–$500 fine, 2–180 days jail and 24–48 hours public service.
Source: Driving Under the Influence
Question 5
How long is the license revocation for a first DUI conviction in Colorado's Table 1?
9 months
1 year
3 months
2 years, with no early reinstatement
Correct answer: 9 months
A first DUI brings a 9-month revocation; a second offense is 1 year and a third is 2 years.
Source: Driving Under the Influence
Question 6
Which counts as one standard drink, according to the Colorado handbook?
24 ounces of beer
3 ounces of distilled spirits, mixed with soda
12 ounces of wine
5 ounces of wine
Correct answer: 5 ounces of wine
A standard drink is 12 ounces of beer, 5 ounces of wine or 1.5 ounces of distilled spirits.
Source: Driving Under the Influence
Question 7
On average, how fast does a person's BAC drop?
About 0.015% per hour
About 0.05% per hour
About 0.08% per hour
Faster with coffee or a cold shower
Correct answer: About 0.015% per hour
Only time sobers a person; on average BAC drops by 0.015% per hour.
Source: Driving Under the Influence
Question 8
Where is it unlawful to have an open container of alcohol or marijuana in Colorado?
Only in the trunk, if the car is moving
Nowhere if you are a passenger
In the passenger area of a vehicle on a public road
Only in the driver's hand; passengers may hold open containers
Correct answer: In the passenger area of a vehicle on a public road
It is unlawful to possess an open container of alcohol or marijuana in the passenger area of a vehicle on a public road.
Source: Driving Under the Influence
Question 9
A driver says the marijuana was used for medical reasons. Is that a defense to DUI in Colorado?
Only for a first offense
Yes, if the THC level is below 10 nanograms
Yes, with a doctor's card
No
Correct answer: No
Medicinal use of marijuana or other drugs is not a defense for DUI or DWAI.
Source: Driving Under the Influence
Question 10
At what blood THC level may Colorado infer that a driver was DUI?
0.08 nanograms, matching the alcohol limit
1 nanogram per milliliter
50 nanograms per milliliter
5 nanograms per milliliter
Correct answer: 5 nanograms per milliliter
There is a permissible inference of DUI at 5 ng of THC per ml of blood; there is no THC inference level for DWAI.
Source: Driving Under the Influence
Question 11
What does Colorado's data show about polydrug impairment?
It is more common than impairment by any single drug other than alcohol
It is rare and less dangerous than alcohol alone
It only involves illegal drugs
It is legal if each drug is prescribed by the same doctor
Correct answer: It is more common than impairment by any single drug other than alcohol
Polydrug impairment is more common than impairment by any single drug other than alcohol, and more dangerous.
Source: Driving Under the Influence
Question 12
What happens if you refuse a chemical test under Colorado's Express Consent law?
Your license is suspended for 30 days
Your license is revoked for one year and you need an ignition interlock for two years
You get a warning and a small fine
Nothing, as long as you are not convicted of DUI later in court
Correct answer: Your license is revoked for one year and you need an ignition interlock for two years
Refusing means a one-year revocation and a required ignition interlock on any vehicle you drive for two years.
Source: Driving Under the Influence
Question 13
Can you plea bargain out of an alcohol- or drug-related driving offense in Colorado?
No, Colorado law does not allow it
Yes, if you complete an alcohol class before the court date
Yes, if no one was hurt
Yes, on a first offense
Correct answer: No, Colorado law does not allow it
Colorado law does not allow you to plea bargain out of an alcohol or drug related driving offense.
Source: Driving Under the Influence
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Practice questions are written from official driver handbooks. Always check your state DMV for current rules.
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