When driving in rain, you must:
- Use low beam headlights. ✓
- Use high beam headlights.
- Use parking lights.
- Use no lights.
Answer: A. Use low beam headlights.
When driving in rain, you must use low beam headlights.
Why this is the answer
The handbook groups heavy rain with fog and smoke as low visibility conditions. In those conditions you must turn on your headlights, and parking lights do not count as a substitute. It also says to drive with lights on low beam, because high beams reflect off fog and make it harder to see. So the low beam setting is the one the handbook calls for in rain.
Why the other answers are wrong
- B. Use high beam headlights. — High beams reflect off fog and other wet, hazy air and cut your visibility further, so the handbook points you to the low beam setting instead.
- C. Use parking lights. — The handbook says plainly that parking lights are not a substitute for headlights in low visibility.
- D. Use no lights. — Driving with no lights at all leaves you unseen and unable to see in low visibility, which the handbook says requires headlights on.
Remember it
Rain, fog, smoke: think low. The dim setting is the one that keeps the glare off your own windshield.