During poor weather conditions such as rain, snow, smoke and fog, switch your headlights…?

  1. To low beam ✓
  2. To high beam
  3. Off
  4. Any of these

Answer: A. To low beam

Switch your headlights to low beam in rain, snow, smoke or fog.

Why this is the answer

The handbook says to turn on your full lighting system and use low-beam headlights when driving in blowing snow or whiteouts; high beams reflect off ice particles and make it harder to see. It also requires headlights in poor light conditions such as fog, snow or rain. Low beams are the setting that lets you see without throwing glare back at you, so that is the right choice when weather cuts visibility.

Why the other answers are wrong

Remember it

When visibility drops, pick the beam that keeps glare down.

Official handbook: Official MTO Driver's Handbook, Driving at night and in bad weather – Tips for driving in blowing snow and whiteout conditions

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.