Practice Test GeeksTN DMV - Tennessee Department of Motor Vehicle Practice Test
← All TN DMV Flashcard Decks

Alcohol and Drug Laws Flashcards

6 cards from real TN DMV practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.

Read the first 6 Alcohol and Drug Laws flashcards as text

  1. What is the legal Blood Alcohol Concentration (BAC) limit for drivers 21 and older in Tennessee?

    Answer: 0.08%

    Tennessee law sets the legal BAC limit at 0.08% for drivers aged 21 and older.

  2. What is the BAC limit for drivers under 21 in Tennessee?

    Answer: 0.02%

    Tennessee has a zero-tolerance policy for underage drivers, with a BAC limit of 0.02% for those under 21.

  3. What is the BAC limit for commercial vehicle drivers in Tennessee?

    Answer: 0.04%

    Commercial vehicle drivers in Tennessee must stay below a BAC of 0.04%, which is half the standard adult limit.

  4. What does Tennessee's Implied Consent Law mean?

    Answer: By driving, you agree to submit to sobriety tests if lawfully requested

    Tennessee's Implied Consent Law means that by operating a vehicle on public roads, you automatically consent to chemical testing for alcohol or drugs when lawfully requested by police.

  5. What is the minimum license suspension for a first DUI offense in Tennessee?

    Answer: 1 year

    A first DUI conviction in Tennessee results in a mandatory minimum one-year license revocation.

  6. Which of the following can impair driving ability similarly to alcohol?

    Answer: Prescription medications

    Certain prescription medications can cause drowsiness, slowed reaction times, and impaired judgment, affecting driving just like alcohol.

How this page was made: written with AI tools and published by Nathan Beja, founder of Practice Test Geeks, who is responsible for its content. Exam facts are checked against the official sources listed below. Not reviewed by a subject-matter expert. Editorial policy

Sources & references

Exam facts on this page (fees, format, dates, passing scores) are checked against these official sources; the date is our last check. Editorial policy

  1. tn.gov — Fees, renewal, score validity, test delivery, eligibility, exam format, passing score, time limit · verified Oct 2026