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Minnesota permit test: alcohol, drugs and dwi

Effects of alcohol and drugs, DWI and implied consent, penalties, ignition interlock, underage no-tolerance, cannabis and open containers. 24 questions, 10 at a time, starting with ones you haven't seen.

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Rules to remember10 key alcohol, drugs and dwi rulesShow the rules
  1. Your driving ability becomes impaired after just one drink, and higher alcohol concentration means more impairment. (p. 94)
  2. A standard 5-ounce glass of wine holds roughly as much alcohol as one 12-ounce beer, as does a single 9-ounce cooler. (p. 95)
  3. Proof is twice the alcohol percentage, so 80-proof whiskey is 40 percent alcohol. (p. 95)
  4. Alcohol is generally eliminated at about one drink per hour, though many factors change how much is retained. (p. 95)
  5. Refusing the test is a crime and leads to revocation for one to six years, depending on your record. (p. 96)
  6. An adult car driver at 0.08 percent or higher can be arrested for DWI. (p. 96)
  7. The DWI limit drops to 0.04 percent when you are driving a commercial vehicle. (p. 96)
  8. Alcohol-related revocations carry a $680 reinstatement fee, plus a new license application and possibly ignition interlock. (p. 97)
  9. Under 21, it is illegal to drive with any detectable amount of alcohol in your system. (p. 98)
  10. A second no-tolerance conviction for a driver under 21 results in a 180-day suspension. (p. 98)

Taken from the explanations to checked practice questions; page numbers link to the official handbook.

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Sample alcohol, drugs and dwi questions

  1. 1.Without proof that alcohol caused driving errors, what is the lowest alcohol concentration at which an adult car driver can be arrested for DWI?

    • A0.04 percent
    • B0.05 percent
    • C0.08 percent
    • D0.10 percent
    Show the answer

    ✓ C. 0.08 percent

    An adult car driver at 0.08 percent or higher can be arrested for DWI. The lower 0.04 level applies to commercial drivers, or when an officer proves alcohol caused driving errors.

    Source: Minnesota Driver's Manual (June 2026), page 96

  2. 2.You test at 0.09 when stopped. What may you receive before your license is revoked?

    • ANothing; it is revoked at once
    • BA one-year probation license
    • CA seven-day temporary license
    • DA 30-day permit
    Show the answer

    ✓ C. A seven-day temporary license

    With 0.08 or above, or a test refusal, you may get a seven-day temporary license, after which the license is revoked.

    Source: Minnesota Driver's Manual (June 2026), page 97

  3. 3.An ignition interlock device stops the car from starting at what alcohol concentration?

    • A0.04 percent or above
    • B0.08 percent or above
    • C0.16 percent or above
    • D0.02 percent or above
    Show the answer

    ✓ D. 0.02 percent or above

    The interlock device prevents the vehicle from starting if it detects an alcohol concentration at or above 0.02 percent.

    Source: Minnesota Driver's Manual (June 2026), page 98

  4. 4.You took an over-the-counter cold medicine. What should you know before driving?

    • AOnly prescription drugs matter
    • BIt cancels out alcohol
    • CIt can make you drowsy and impair driving
    • DIt is legal, so it is safe
    Show the answer

    ✓ C. It can make you drowsy and impair driving

    Over-the-counter drugs like cold medicines can cause drowsiness and impair your driving; read warning labels.

    Source: Minnesota Driver's Manual (June 2026), page 94