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Louisiana permit test: alcohol, drugs and driving offenses

Alcohol and BAC, DWI penalties, drugs and marijuana, vehicular homicide and negligent injury, reckless driving, hit and run and fleeing an officer. 21 questions, 10 at a time, starting with ones you haven't seen.

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Rules to remember10 key alcohol, drugs and driving offenses rulesShow the rules
  1. Alcohol goes from your stomach into your blood and reaches your brain in about 20 minutes. (p. 127, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))
  2. Drivers 20 years of age and younger are held to a 0.02% BAC limit in Louisiana. (p. 128, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))
  3. For drivers 21 and older in a regular vehicle, the legal BAC limit is 0.08%. (p. 128, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))
  4. The body clears about one normal drink per hour, so after four drinks you should wait four hours or more. (p. 128, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))
  5. Louisiana bans having any open alcoholic beverage container in the vehicle, and the driver can be fined even if no one is drinking. (p. 129, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))
  6. A third DWI conviction is a felony, with 1–5 years in prison, a 3-year license loss and possible seizure of your vehicle. (p. 129, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))
  7. A second DWI can bring 48 hours of mandatory jail, a $1,050 fine and loss of your license for two years (730 days). (p. 129, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))
  8. The handbook estimates a first DWI conviction could cost $4,500 once court costs, fines and lawyer fees are added up. (p. 129, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))
  9. One drink's effects fade over about an hour, but one marijuana cigarette takes five to six hours to wear off. (p. 130, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))
  10. Refusing the test on a first offense brings a 365-day suspension; a second or later refusal brings 730 days. (p. 131, Class D & E Driver's Guide (DPSMV2052) (opens the handbook))

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

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Sample alcohol, drugs and driving offenses questions

  1. 1.Your friend has had too much to drink and wants to sober up fast. What will actually help?

    • AExercising hard for a while
    • BTaking a cold shower
    • CDrinking strong black coffee
    • DOnly time
    Show the answer

    ✓ D. Only time

    Once alcohol is in your blood, coffee, exercise or a cold shower will not help. Your liver needs time to remove it.

    Source: Class D & E Driver's Guide (DPSMV2052) (DPSMV2052), page 127

  2. 2.You notice a car ahead weaving across lanes and think the driver is drunk. What should you do?

    • AHonk until the driver stops
    • BStay far away, then pull over and call 911
    • CPull alongside and wave them over
    • DFollow closely to read their plate
    Show the answer

    ✓ B. Stay far away, then pull over and call 911

    Keep as far from a suspected drunk driver as possible. Don't signal them to stop. Pull over safely and call 911 with a description and location.

    Source: Class D & E Driver's Guide (DPSMV2052) (DPSMV2052), page 130

  3. 3.A driver's BAC is 0.20% at 2:00 a.m. Roughly what will it still be at noon the next day?

    • A0.05%
    • B0.10%
    • C0.00%
    • D0.02%
    Show the answer

    ✓ A. 0.05%

    The body removes only about 0.015% alcohol per hour, so a 0.20% BAC at 2:00 a.m. is still about 0.05% at noon.

    Source: Class D & E Driver's Guide (DPSMV2052) (DPSMV2052), page 128

  4. 4.An officer believes you were driving under the influence. Why are you already considered to have agreed to a BAC test?

    • ADriving on Louisiana roads counts as consent
    • BThe officer asked you out loud first
    • CYour car insurance policy requires it
    • DYou signed a consent form at the DMV
    Show the answer

    ✓ A. Driving on Louisiana roads counts as consent

    Under Louisiana's implied consent law, driving on the state's highways means you have agreed to a test of your blood alcohol and drugs.

    Source: Class D & E Driver's Guide (DPSMV2052) (DPSMV2052), page 131