Alcohol & Drugs

Study questions with answers

12 sample Alcohol & Drugs questions with the correct answer, a short explanation, and the official handbook reference. Read through them, then take the quiz above.

1. 1. What does Illinois law say about open alcohol containers in a vehicle?

   Correct answer: Alcohol may not be in the passenger area if the container has been opened

   It is illegal to drink in a vehicle, and an opened alcohol container may not be kept in the passenger area.

   Source: Illinois Rules of the Road — Illegal Transportation of Alcoholic Beverages/Open Container

2. 2. It is illegal to drive in Illinois with a THC (cannabis) level of at least how much in whole blood?

   Correct answer: 5 nanograms per milliliter

   It is unlawful to drive with 5 or more nanograms of THC in each milliliter of whole blood, or 10 or more nanograms per milliliter of another bodily substance.

   Source: Illinois Rules of the Road — Blood-Alcohol Concentration (BAC)/Presence of Drugs

3. 3. Under Illinois' implied consent law, driving on public roads means you have agreed to what?

   Correct answer: Submit to chemical testing for alcohol or drugs when lawfully requested

   By driving in Illinois you automatically consent to breath, blood, urine, or other testing to determine impairment; refusal brings a suspension.

   Source: Illinois Rules of the Road — Implied Consent Law

4. 4. Which situation can trigger enhanced DUI penalties in Illinois?

   Correct answer: A BAC of .16% or more, or transporting a child under 16

   A BAC of .16% or higher, or driving under the influence with a child under 16 in the vehicle, can lead to enhanced penalties.

   Source: Illinois Rules of the Road — DUI Conviction

5. 5. A driver under 21 who is convicted of DUI faces what minimum penalty for a first offense?

   Correct answer: A revocation of at least two years

   For a driver under 21, a first DUI offense that ends in conviction takes away driving privileges for no less than two years.

   Source: Illinois Rules of the Road — Drivers Under Age 21

6. 6. For a first offender, refusing a chemical test after a DUI arrest results in what suspension?

   Correct answer: A one-year suspension of driving privileges

   A first-time refusal of chemical testing brings a statutory summary suspension of one year, longer than the suspension for failing the test.

   Source: Illinois Rules of the Road — Statutory Summary Suspension/Revocation Law

7. 7. In Illinois it is illegal to drive with a blood-alcohol concentration at or above what level?

   Correct answer: .08%

   Driving with a BAC of .08% or higher is illegal, though you can still be convicted at a lower level if your driving is impaired.

   Source: Illinois Rules of the Road — Blood-Alcohol Concentration (BAC)

8. 8. A first DUI conviction in Illinois carries what minimum penalty?

   Correct answer: At least a one-year revocation of driving privileges

   A first DUI conviction results in revocation of driving privileges for a minimum of one year, on top of any statutory summary suspension.

   Source: Illinois Rules of the Road — DUI Conviction

9. 9. For a first offender, failing a chemical test (BAC .08% or more) leads to what suspension?

   Correct answer: Six months

   A first offender who fails chemical testing faces a six-month statutory summary suspension.

   Source: Illinois Rules of the Road — Statutory Summary Suspension/Revocation Law

10. 10. A driver under 21 found with any trace of alcohol faces what consequence?

    Correct answer: At least a three-month suspension of driving privileges

    Illinois has a zero-tolerance rule: a driver younger than 21 with any detectable alcohol loses driving privileges for at least three months.

    Source: Illinois Rules of the Road — Drivers Under Age 21

11. 11. How must cannabis be carried in a vehicle in Illinois?

    Correct answer: In a sealed, odor-proof, child-resistant container

    Cannabis may only be transported in a sealed, odor-proof, child-resistant container, and no one in the vehicle may use it.

    Source: Illinois Rules of the Road — Medical and Recreational Cannabis

12. 12. What is the only reliable way to lower your blood-alcohol level after drinking?

    Correct answer: Allowing enough time to pass

    Only time removes alcohol from your system; coffee, food, and showers do not speed up the process.

    Source: Illinois Rules of the Road — Blood-Alcohol Concentration (BAC)