RRoad Rules Prep
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Florida Impairment practice

Practice 39 Florida 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 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 is a substance that slows down the central nervous system, leading to delayed physical and mental responses. It impairs your judgment and reflexes, making it impossible to react faster to hazards on the road.

2

Which drug is most frequently found in drivers involved in crashes, following alcohol?

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

Why: Marijuana is the most frequently detected drug after alcohol in the systems of drivers involved in traffic collisions. The driver's manual emphasizes that it impairs critical functions like reflexes, judgment, and alertness.

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