Missouri permit test: alcohol & drugs

BAC limits, implied consent, penalties, open containers and impairment. 8 questions.

Question 1 of 8
Alcohol & drugsMissouri rule

In Missouri, it is illegal for a driver 21 or older to drive a car with a blood alcohol content (BAC) of:

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Sample alcohol & drugs questions

  1. In Missouri, it is illegal for a driver 21 or older to drive a car with a blood alcohol content (BAC) of:

    • A 0.10% or more
    • B 0.04% or more
    • C 0.08% or more
    • D 0.02% or more
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    C. 0.08% or more

    Missouri's limit for adult drivers is 0.08% BAC. Even one drink can affect your driving, and two drinks may put you over the limit.

    Source: Missouri Driver Guide, page 73

  2. What is the illegal blood alcohol content (BAC) level for a Missouri driver under 21?

    • A 0.08% or more
    • B 0.02% or more
    • C 0.05% or more
    • D 0.04% or more
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    B. 0.02% or more

    Drivers under 21 may not drive with a BAC of 0.02% or more. Since it is illegal for them to drink at all, the low limit works as near-zero tolerance.

    Source: Missouri Driver Guide, page 73

  3. A Missouri officer stops you and you refuse a chemical test of your blood alcohol. What happens to your license?

    • A Nothing, unless you are later convicted of DWI
    • B It is suspended for 30 days
    • C It is suspended for 90 days
    • D It is taken away for one year
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    D. It is taken away for one year

    Refusing a chemical test means losing your license for one year. To be reinstated you must pay a fee, complete SATOP, and file proof of insurance (SR-22) for two years.

    Source: Missouri Driver Guide, page 72

  4. Under Missouri's Abuse and Lose law, a 19-year-old caught possessing alcohol while driving may lose their license for how long?

    • A 30 days
    • B One year
    • C 90 days
    • D Five years
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    C. 90 days

    Abuse and Lose lets Missouri take a license for 90 days from anyone under 21 who possesses or uses alcohol or drugs while driving, commits an alcohol-related traffic offense, or alters a license.

    Source: Missouri Driver Guide, page 71