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North Carolina Impairment practice

Practice 55 North Carolina 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 typical effect of marijuana on your ability to drive?

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

Why: Marijuana impairs driving by slowing down brain functions and physical responses. It does not make you react faster; it actually makes your reaction time much slower.

2

What is the second most common drug, after alcohol, found in drivers involved in traffic accidents?

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

Why: Marijuana is the second most common drug found in the bodies of drivers involved in accidents, ranking just behind alcohol. It negatively impacts the physical and mental fitness required to drive safely.

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Practice material only — verify current rules with the North Carolina Division of Motor Vehicles.