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Utah Impairment practice

Practice 50 Utah 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 common effect of marijuana on your 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 your brain and body, making it harder to react to hazards. It never improves your reaction time; it only makes it worse.

2

Which drug is the second most frequently found in drivers involved in accidents, 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 collisions. It significantly impairs judgment, motor coordination, and reaction time.

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