RRoad Rules Prep

Nebraska Impairment practice

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

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Example questions & answers

1

Which of these statements regarding blood alcohol concentration (BAC) is correct?

  • A.a) It is illegal for a driver under 21 years of age to drive with a BAC of 0.02% or above.
  • B.b) It is illegal for a driver at any age to drive with a BAC of 0.08% or above.
  • C.Both a) and b) are true.✓
  • D.Neither a) nor b) are true.

Why: It is illegal for any driver to operate a vehicle with a BAC of 0.08% or higher. For drivers under the age of 21, the legal limit is much stricter at 0.02%.

2

Which of the following 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 impairs driving by slowing down your brain's processing speed and physical coordination. It does not make you react faster; instead, it significantly delays your response to hazards.

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Practice material only — verify current rules with the Nebraska Department of Motor Vehicles.