If you need to drive in foggy weather:
- Turn on your low beam headlights. ✓
- Turn on your hazard lights.
- It is okay to drive at the maximum speed limit.
- Do not drive at a speed above 10 miles per hour.
Answer: A. Turn on your low beam headlights.
Turn on your low beam headlights when driving in fog.
Why this is the answer
The Florida handbook lists fog as a low-visibility condition. It says you must turn on your headlights, and it specifically says to drive with lights on low beam. It explains that high beams reflect off the fog and make visibility worse. So the correct choice is to use low beam headlights, not to rely on parking lights.
Why the other answers are wrong
- B. Turn on your hazard lights. — The low-visibility section tells you to use low beam headlights; it does not list hazard lights as the step for fog.
- C. It is okay to drive at the maximum speed limit. — The passage does not say fog makes it okay to drive at the maximum speed limit; it only gives lighting and visibility steps.
- D. Do not drive at a speed above 10 miles per hour. — The handbook passage does not set a 10 miles per hour limit for fog; it tells you to use low beams and other visibility aids.
Remember it
In fog, keep your beams low, because high beams bounce light back at you.