RRoad Rules Prep

Arizona Impairment practice

Practice 44 Arizona DMV questions on impairment. Answer interactively below with an instant explanation after every question.

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Example questions & answers

1

What is not a common effect of marijuana on a person's driving ability?

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

Why: Marijuana slows down the central nervous system, leading to slower reflexes and impaired judgment. It does not make you react faster; in fact, it does the opposite.

2

Which drug is 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 blood of drivers involved in crashes. It significantly impairs coordination, judgment, and reaction time.

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Practice material only — verify current rules with the Arizona Motor Vehicle Division.