Skip to content
PracticeTestHQ

New Jersey permit test: alcohol, drugs and dui

How alcohol affects driving, blood alcohol limits, implied consent, underage drinking and DUI penalties. 18 questions, 10 at a time, starting with ones you haven't seen.

Loading questions…

Sample alcohol, drugs and dui questions

  1. 1. At about what BAC does a driver's risk of causing a crash double?

    • A. Slightly above 0.15%
    • B. Slightly above 0.05%
    • C. Slightly above 0.01%
    • D. Slightly above 0.10%
    Show the answer

    B. Slightly above 0.05%

    Crash risk doubles at a BAC slightly above 0.05%, which is below the adult legal limit. Risk climbs much higher at 0.10% and 0.15%.

    Source: 2026 New Jersey Driver Manual (2026), page 117

  2. 2. You are 19 and had one beer at a party. A breath test shows a BAC of 0.02%. Is it legal for you to drive?

    • A. Yes, as long as you drive below the speed limit
    • B. Yes, because you are below 0.05%
    • C. No, because drivers under 21 may not drive with a BAC of 0.01% or higher
    • D. Yes, because you are below 0.08%
    Show the answer

    C. No, because drivers under 21 may not drive with a BAC of 0.01% or higher

    New Jersey drivers under 21 may not drive with a BAC of 0.01% or more. Even one drink can put an underage driver over that limit.

    Source: 2026 New Jersey Driver Manual (2026), page 117

  3. 3. An ignition interlock device keeps a vehicle from starting if the driver's BAC is above what level?

    • A. 0.01%
    • B. 0.08%
    • C. 0.05%
    • D. 0.10%
    Show the answer

    C. 0.05%

    An ignition interlock has a built-in breathalyzer and will not let the vehicle start if the driver's BAC exceeds 0.05%.

    Source: 2026 New Jersey Driver Manual (2026), page 129

  4. 4. According to the New Jersey handbook, which drug is most often found in drivers involved in crashes, after alcohol?

    • A. Caffeine
    • B. Marijuana
    • C. Tranquilizers
    • D. Cold medicine
    Show the answer

    B. Marijuana

    After alcohol, marijuana is the drug most often found in drivers involved in crashes. It can affect lane tracking, distance judgment, attention and the ability to divide attention.

    Source: 2026 New Jersey Driver Manual (2026), page 119