Practice question

If driving in a foggy area, you should not:

  1. Decrease your speed.
  2. Increase your speed.
  3. Use your low beam headlights.
  4. Turn on your four-way flashers.

Answer: B — Increase your speed.

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

Practice more: Texas CDL Class B Knowledge Test 1 →