Driver's License Test Prep
Florida Practice DUI & Impaired Driving

After drinking an alcoholic beverage, which of the following is the first driving-related ability to be affected?

  1. A.
    Your vision and depth perception of moving vehicles.
  2. B.
    Your ability to steer and control the vehicle smoothly.
  3. C.
    Your judgment about risk and safety. Correct
  4. D.
    Your reaction time and reflexes at the wheel.
The Why

The answer is "Your judgment about risk and safety."

The manual states judgment is the first thing affected after drinking an alcoholic beverage. Reaction time, vision, and vehicle control come next in the same paragraph, not first. Choice D pulls drivers who picture alcohol's headline effect as slowed hands and delayed braking, reaching for the outside symptom of a drunk driver before the mental change the manual puts ahead of it.

Why the others miss

The traps in the wrong answers

A. Your vision and depth perception of moving vehicles.

The manual does list reduced ability to see clearly and to judge distance, but only after naming judgment as the first ability affected. This answer trusts the visible signs of a drunk driver (glassy eyes, blurred vision) over the mental change the manual puts before any physical symptom.

B. Your ability to steer and control the vehicle smoothly.

The manual lists trouble controlling the vehicle among alcohol's effects, but only after naming judgment as the first ability impaired. This answer assumes the earliest sign of impairment is what a passenger or officer would spot from outside (swerving, sloppy lane keeping) rather than the mental change that precedes it.

D. Your reaction time and reflexes at the wheel.

The manual names judgment as the first ability impaired; slowed reaction time is listed in the following sentence, not first. This answer follows the pop-culture image of drunk driving as jerky hands and delayed braking, which drivers assume must be alcohol's opening effect.

The Rule

This question tests your knowledge of DUI & Impaired Driving in Florida. Source: Florida Driver Manual, "Drinking & Driving," p.35..

More from this topic

Related Florida questions

More than a book

You just took one Florida question apart. The book does it for the whole test.

The Florida book unlocks a free companion: an adaptive study plan, progress synced across your devices, a denser laminate cheat sheet, and a test-day walkthrough. Verify your copy once, usually in seconds; there's nothing extra to buy.

Get the book on Amazon

$18.99 paperback, free companion included.

Free study plan

Your free Florida study plan

A short run of study emails for the Florida DMV test: what to drill, the rules people trip on, and a final pre-test checklist. The printable cheat sheet is free to grab either way.

One email a few times a month. No spam, unsubscribe anytime. Privacy.