RRoad Rules Prep

Indiana Impairment practice

Practice 39 Indiana DMV questions on impairment. Answer interactively below with an instant explanation after every question.

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Example questions & answers

1

Which of the following is not a likely effect of marijuana on your driving?

  • A.Reduced ability to focus
  • B.Faster reaction time✓
  • C.Impaired night vision
  • D.Impaired sense of time, speed, and distance

Why: Marijuana impairs your reasoning and coordination, leading to slower physical and mental responses. It does not speed up your reaction time; instead, it makes it much harder to react quickly to hazards.

2

Which drug is the second most frequently found in drivers involved in crashes, following alcohol?

  • A.cocaine.
  • B.cold or allergy medications.
  • C.marijuana.✓
  • D.pain relievers.

Why: Marijuana is the most frequently detected drug, other than alcohol, in the systems of drivers involved in traffic accidents.

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Practice material only — verify current rules with the Indiana Bureau of Motor Vehicles.