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Oklahoma Car / Permit practice

Alcohol & Drugs

Blood alcohol limits, zero-tolerance and implied-consent laws, and how alcohol and drugs — legal or not — affect your driving.

Content reviewed against official driver handbooks · July 7, 2026

14 questions · pass with 11 correct. You get instant feedback and an explanation after every answer.

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. For drivers under 21, a license can be revoked for having:

    Correct answer: Any measurable amount of alcohol

    Under Zero Tolerance, any measurable amount of alcohol can cost a driver under 21 their license.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  2. 2. A first DUI conviction in Oklahoma is classified as:

    Correct answer: A misdemeanor

    A first DUI offense is a misdemeanor carrying jail time and a fine.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  3. 3. Even ordinary over-the-counter cold or allergy medicines can:

    Correct answer: Slow reaction time and cause drowsiness

    Such drugs can slow your reaction time, make you dizzy, and impair your concentration and vision.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  4. 4. A revocation under the Implied Consent Law can last:

    Correct answer: From 180 days up to 2 years

    Depending on your record, the revocation period runs from 180 days up to 2 years.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  5. 5. Under Oklahoma's Implied Consent Law, refusing a chemical test when an officer lawfully requests one results in:

    Correct answer: Automatic revocation of your driving privilege

    Refusal brings an automatic revocation of your driving privilege, even if you had not been drinking.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  6. 6. Combining alcohol with other drugs is especially dangerous because it:

    Correct answer: Multiplies the harmful effects

    The drugs react with each other and multiply their harmful effects on coordination and concentration.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  7. 7. Regarding cannabis, Oklahoma law makes it illegal to drive with:

    Correct answer: Any detectable level in your system

    It is unlawful to drive with any detectable level of cannabis in your system, even where medical use is legal.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  8. 8. Roughly what share of highway deaths does the manual attribute to alcohol?

    Correct answer: About one-quarter

    The manual states that alcohol is responsible for about one-quarter of all highway deaths.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  9. 9. According to the manual, alcohol impairs which driving ability almost immediately?

    Correct answer: Your judgment

    Judgment is affected almost at once, and you often cannot tell you have had too much until it is too late.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  10. 10. A driver's license will be revoked if a chemical test shows a blood alcohol content of at least:

    Correct answer: 0.08

    A BAC of 0.08 or more triggers revocation, even without a court conviction for DUI.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  11. 11. Driving with a blood alcohol content above 0.05 but below 0.08 can result in:

    Correct answer: A fine and possible jail time

    A conviction at this level can bring a fine and up to six months in jail.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

  12. 12. A 12-ounce beer, a 5-ounce glass of wine, and a 1.5-ounce shot of 80-proof liquor each contain:

    Correct answer: The same amount of alcohol

    The manual points out that these servings all hold the same amount of alcohol.

    Source: Oklahoma Driver Manual, Chapter 12: Alcohol, Drugs and Driving

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Every Oklahoma question is written from the official Oklahoma driver handbook and checked against its current edition. DMV Test Free is a free, independent study resource — not affiliated with any DMV or government agency. About DMV Test Free