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Wisconsin Impairment practice

Practice 56 Wisconsin DMV questions on impairment. Answer interactively below with an instant explanation after every question.

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Example questions & answers

1

Diabetic drivers who might go into shock should not drive. Which group of diabetic drivers is this referring to?

  • A.eat healthy meals
  • B.take insulin✓
  • C.eat food with sugars
  • D.eat regular meals

Why: Drivers using insulin must be extremely cautious because it can cause blood sugar levels to drop dangerously low, leading to insulin shock. If there is any risk of losing consciousness or becoming disoriented, you must not operate a vehicle.

2

Which of the following is not a typical 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 your brain's ability to process information and react to hazards. It does not make you faster; instead, it impairs your judgment and coordination.

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