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 Oregon's Implied Consent law mean?

   Correct answer: By driving, you consent to breath, blood, or urine testing at an officer's request

   Under Implied Consent, operating a vehicle means you have agreed to submit to chemical testing when a police officer asks.

   Source: Oregon Driver Manual — Impaired Driving, p. 83

2. 2. What is the safest choice after using any drug that affects your reaction time?

   Correct answer: Do not drive at all

   The safest choice is to avoid driving after using any drug that affects your reaction time or physical ability.

   Source: Oregon Driver Manual — Impaired Driving, p. 82

3. 3. Which drug is most commonly involved when drivers are impaired in Oregon?

   Correct answer: Alcohol

   Alcohol is the most common drug involved in impaired driving, though marijuana also contributes to many crashes.

   Source: Oregon Driver Manual — Impaired Driving, p. 82

4. 4. At what blood alcohol concentration does Oregon law presume a driver 21 or older is impaired?

   Correct answer: 0.08% or more

   A BAC of 0.08% or more leads the law to presume impairment, though you can be arrested at a lower level too.

   Source: Oregon Driver Manual — Impaired Driving, p. 82

5. 5. Oregon's DUII law applies to which substances?

   Correct answer: Any substance that impairs your ability to drive

   The DUII law covers any substance, legal or not, that impairs your mental or physical ability to drive.

   Source: Oregon Driver Manual — Impaired Driving, p. 83

6. 6. Which statement about prescription or over-the-counter medications and driving is true?

   Correct answer: They can impair driving, so ask a doctor or pharmacist about side effects

   OTC and prescription medications can impair driving; check with a doctor or pharmacist about side effects before driving.

   Source: Oregon Driver Manual — Impaired Driving, p. 83

7. 7. When is a container of alcohol considered 'open' under the law?

   Correct answer: When its seal has been broken, even if reclosed

   A container counts as open once its seal has been broken, even if it was closed again.

   Source: Oregon Driver Manual — Impaired Driving (Open Container), p. 83

8. 8. Which of these can cause you to lose your Oregon driving privilege?

   Correct answer: Driving under the influence of alcohol, drugs, or inhalants

   Driving under the influence of alcohol, drugs, or inhalants is one of the listed reasons a driver can lose their driving privilege.

   Source: Oregon Driver Manual — Loss of Driving Privileges, p. 95

9. 9. Can a driver be arrested for DUII with a BAC under 0.08%?

   Correct answer: Yes, if alcohol or drugs are affecting your driving

   You can still be arrested for DUII even with a BAC below 0.08% if you are impaired by alcohol or drugs.

   Source: Oregon Driver Manual — Impaired Driving, p. 82

10. 10. Under Oregon's zero-tolerance law, a driver under 21 fails the test at what alcohol level?

    Correct answer: Any detectable amount

    Drivers under 21 fail the test with any amount of alcohol in their blood under Oregon's zero-tolerance law.

    Source: Oregon Driver Manual — Impaired Driving, p. 83

11. 11. Oregon's Open Container law requires open alcohol containers to be kept where?

    Correct answer: In the trunk

    Any open bottle or container of alcohol must be stored in the trunk; it is otherwise illegal to have it in the vehicle on a road.

    Source: Oregon Driver Manual — Impaired Driving (Open Container), p. 83

12. 12. How does combining alcohol and marijuana affect driving?

    Correct answer: It can reduce a person's ability to drive safely

    Using alcohol and marijuana together can lower a driver's ability to operate a vehicle safely.

    Source: Oregon Driver Manual — Impaired Driving, p. 82