Skip to content
PracticeTestHQ
Find your state

Indiana permit test: alcohol, drugs and impaired driving

BAC limits, chemical tests and implied consent, OWI suspensions, drowsy and impaired driving. 13 questions, 10 at a time, starting with ones you haven't seen.

Study this topic as flashcards

Rules to remember10 key alcohol, drugs and impaired driving rulesShow the rules
  1. BAC depends mainly on how much alcohol you drink, how quickly you drink it, and your body weight. (p. 28)
  2. Refusal with a previous operating-while-intoxicated conviction brings a two-year suspension, double the one year for a first refusal. (p. 29)
  3. When a driver under 18 is cited for operating while intoxicated, the Juvenile Court may also recommend a suspension of driving privileges. (p. 29)
  4. A watercraft drunk-operation conviction carries the same penalties to your driving privileges as drunk driving, and it goes on your driver record. (p. 29)
  5. An ignition interlock device tests the driver's blood alcohol level before the car can be started. (p. 29)
  6. A motorist who fails a chemical test faces a 180-day suspension. (p. 29)
  7. Sleep is the real fix for drowsiness. (p. 50)
  8. Studies show that 18 hours without sleep impairs a driver as much as a .08 BAC, the legal alcohol limit. (p. 50)
  9. Weaving, straddling the center line, wide turns and drifting are signs that a driver may be impaired by drugs or alcohol. (p. 64)
  10. Many prescription and over-the-counter drugs impair reasoning and coordination. (p. 64)

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

Loading questions…

Sample alcohol, drugs and impaired driving questions

  1. 1.A court orders an ignition interlock device on a driver's car. What does the device do?

    • ALocks the doors and windows while the car is moving
    • BLimits the car's top speed whenever it is on a highway
    • CTests the driver's blood alcohol before the car will start
    • DRecords every place the car is driven and when
    Show the answer

    ✓ C. Tests the driver's blood alcohol before the car will start

    An ignition interlock device tests the driver's blood alcohol level before the car can be started.

    Source: Indiana Driver's Manual (Published July 2026), page 29

  2. 2.Your doctor gives you a new prescription. What should you do before driving after taking it?

    • ANothing, since a prescribed drug is always legal to drive on
    • BTake half the dose so the effects are weaker
    • CDrive only at night when there is less traffic around
    • DRead the label and ask your doctor or pharmacist about side effects
    Show the answer

    ✓ D. Read the label and ask your doctor or pharmacist about side effects

    Many prescription and over-the-counter drugs impair reasoning and coordination. Read the label and discuss side effects with a physician or pharmacist before driving.

    Source: Indiana Driver's Manual (Published July 2026), page 64

  3. 3.For an adult driver, above what blood alcohol concentration (BAC) is it a criminal offense to drive in Indiana?

    • A.02
    • B.05
    • C.10
    • D.08
    Show the answer

    ✓ D. .08

    Operating a vehicle with a BAC above the legal limit of .08, or while intoxicated, is a criminal offense in Indiana.

    Source: Indiana Driver's Manual (Published July 2026), page 28

  4. 4.A driver with a previous conviction for operating while intoxicated refuses a chemical test. How long is the suspension?

    • AOne year
    • BFive years
    • CTwo years
    • D180 days
    Show the answer

    ✓ C. Two years

    Refusal with a previous operating-while-intoxicated conviction brings a two-year suspension, double the one year for a first refusal.

    Source: Indiana Driver's Manual (Published July 2026), page 29