Which of the following is likely to indicate alcohol impairment?

  1. Poor speed and distance judgement. ✓
  2. Driving too fast.
  3. Playing very loud music.
  4. Complaining about other drivers.

Answer: A. Poor speed and distance judgement.

Poor speed and distance judgement is the likely sign of alcohol impairment.

Why this is the answer

The handbook says a driver impaired by alcohol or drugs has mental confusion and slower reactions, and it treats impaired driving as a serious hazard. It also lists lack of judgment among impairment effects. Judging speed and distance takes clear thinking and quick reactions, so poor speed and distance judgement fits that picture. The passages do not give a specific list of alcohol tell-tales, so this is an inference from what they say about impairment rather than an exact statement.

Why the other answers are wrong

Remember it

Watch for sloppy judgment of speed and gaps, the kind of mental confusion impairment creates.

Official handbook: ICBC Learn to Drive Smart, Chapter 1: you in the driver’s seat – Make good decisions, p. 6

Explanation drafted with AI (deepseek-flash) from the official handbook passage cited above, then checked automatically and by a second model on 2026-10-23. Always confirm with the official handbook.