Practice question

Driving while very tired or drowsy is dangerous because it:

  1. Improves your concentration
  2. Slows your reaction time and reduces your alertness, similar to alcohol impairment
  3. Has no measurable effect on driving
  4. Only matters on long trips

Answer: B — Slows your reaction time and reduces your alertness, similar to alcohol impairment

The correct answer is shown above. Try the full quiz for additional practice.

Practice more: WA DOL Knowledge Test Practice Questions - Washington State Driver License Knowledge Test Exam →