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Montana Impairment practice

Practice 54 Montana 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 probable consequence of using marijuana before driving?

  • 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 brain and body, making your reactions significantly slower rather than faster. It also impairs your focus, night vision, and ability to judge speed and distance.

2

Which drug is 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 drivers involved in crashes. It significantly impairs the physical and mental faculties required for safe driving.

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