Colorado: Alcohol and drugs — Part 1 Practice Test
Questions in this part include: “Which of these can cause your driving privilege to be suspended, revoked or canceled?” · “What does DWAI mean?”
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Questions are original and based on the official manual "Colorado Driver Handbook" (DR 2337, January 2025), Colorado Division of Motor Vehicles (DMV).
All 17 questions in this practice test
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Which of these can cause your driving privilege to be suspended, revoked or canceled?
- Having a passenger who drinks alcohol
- Driving a vehicle with a dirty windshield
- Parking overnight on a public street
- Refusing to be tested for alcohol or drug content
Show answer
Correct answer: Refusing to be tested for alcohol or drug content
Refusing to be tested for alcohol or drug content can cost you your driving privilege.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 2 · Open this page in the manual (Manual page 2)
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Which conviction can lead to the suspension, revocation or cancellation of your driving privilege?
- Driving while under the influence of alcohol or drugs
- Driving a vehicle that has not been washed recently
- Driving with the radio turned up too loudly
- Driving to a different county in the state
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Correct answer: Driving while under the influence of alcohol or drugs
A conviction for driving under the influence of alcohol or drugs can cost you your driving privilege.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 2 · Open this page in the manual (Manual page 2)
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Which of these convictions is listed as a way you can lose your driving privilege?
- Receiving a parking ticket near a school
- Driving a rental vehicle in another state
- Riding a bicycle without wearing a helmet
- Buying or possessing alcohol while under 21
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Correct answer: Buying or possessing alcohol while under 21
Being convicted of purchasing or possessing alcohol while younger than 21 is listed among the ways to lose your driving privilege.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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What kind of drug is alcohol?
- A stimulant that speeds up the brain
- A painkiller that sharpens judgment
- A harmless substance with no effect on thinking
- A depressant that reduces brain function
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Correct answer: A depressant that reduces brain function
Alcohol is a depressant drug that reduces brain function, impairing thinking, reasoning and muscle coordination.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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What may depressants do to a driver?
- Slow reflexes and reaction times
- Speed up reflexes and reaction times
- Improve the ability to make decisions
- Improve muscle coordination
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Correct answer: Slow reflexes and reaction times
Depressants may slow reflexes and reaction times while reducing the ability to make decisions.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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What happens as the amount of drugs in your body increases?
- Your judgment stays the same but reactions slow
- Your skills improve after a short time
- Your judgment worsens and skills decrease
- Your judgment improves as you adjust
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Correct answer: Your judgment worsens and skills decrease
As the amount of drugs in the body increases, judgment worsens and skills decrease.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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When you drive while impaired, what are you more likely to do?
- Drive more slowly and cautiously than usual
- Take risks such as speeding or turning abruptly
- Leave extra space behind other vehicles
- Stay in one lane for longer stretches
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Correct answer: Take risks such as speeding or turning abruptly
The handbook says an impaired driver is more likely to take risks such as speeding or turning abruptly.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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Which of these is it unlawful to possess in the passenger area of a motor vehicle on a public road?
- A prescription medication in its original bottle
- A cooler holding soft drinks
- A first aid kit
- An open container of alcohol or marijuana
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Correct answer: An open container of alcohol or marijuana
Possessing an open container of alcohol or marijuana in the passenger area on a public road is unlawful.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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What does DWAI mean?
- The driver is impaired to the slightest degree
- The driver is substantially incapable of safe driving
- The driver's license has been revoked
- The driver refused a toxicological test
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Correct answer: The driver is impaired to the slightest degree
DWAI (Driving While Ability is Impaired) means the driver is impaired to the slightest degree.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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What does DUI mean?
- The driver is impaired to the slightest degree
- The driver has any alcohol in the vehicle
- The driver is substantially incapable of safe driving
- The driver is under 21 and has been drinking
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Correct answer: The driver is substantially incapable of safe driving
DUI (Driving Under the Influence) means the driver is substantially incapable of safe driving.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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Whether a driver is convicted of DWAI or DUI depends on what?
- The type and age of the vehicle being driven
- The level of the driver's mental or physical impairment
- The time of day when the driver was stopped
- Whether the driver is the owner of the vehicle
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Correct answer: The level of the driver's mental or physical impairment
A driver may be convicted of either DWAI or DUI depending on the level of the driver's mental or physical impairment.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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Impaired driving convictions are not proven only by the driver's BAC. What else are they proven by?
- The driver's age and the class of the license held
- The weather conditions and the time of day of the stop
- The type of vehicle and how old the vehicle is
- The impaired driving behavior and a totality of circumstance
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Correct answer: The impaired driving behavior and a totality of circumstance
Convictions rest on the impaired driving behavior and a totality of circumstance, not on BAC alone.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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Which of these is used to document a driver's impairment?
- Standardized Field Sobriety Tests
- The driver's credit history report
- The age of the vehicle being driven
- The driver's home address on file
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Correct answer: Standardized Field Sobriety Tests
Impairment is usually documented by observed impairment and the driver's performance on Standardized Field Sobriety Tests.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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A driver may be convicted of DUI per se if the driver's BAC is greater than what?
- 0.10%
- 0.12%
- 0.08%
- 0.06%
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Correct answer: 0.08%
The handbook says DUI per se applies when the BAC is greater than 0.08%.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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A license may be revoked for a driver under 21 based on a BAC over what?
- .04
- .02
- .06
- .03
Show answer
Correct answer: .02
Licenses may be revoked based on a BAC over .02 if the driver is under 21.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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A license may be revoked for a CDL driver based on a BAC over what?
- .02
- .06
- .10
- .04
Show answer
Correct answer: .04
Licenses may be revoked based on a BAC over .04 for a CDL driver.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)
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Which of these can lead to a license being revoked?
- Refusing a toxicological test
- Failing to signal a lane change
- Driving with a loud muffler
- Driving in a bus lane
Show answer
Correct answer: Refusing a toxicological test
Licenses may be revoked if the driver refuses a toxicological test set forth in Colorado Statute.
Source: Colorado Driver Handbook (DR 2337, January 2025), page 3 · Open this page in the manual (Manual page 3)