In fog you should:

Question: In fog you should:

Answer options:

• Use high beams ✅ Use low beams or fog lights and slow down
• Drive on the shoulder
• Tailgate the car ahead

Correct answer: Use low beams or fog lights and slow down

Explanation: Using low beams or fog lights while slowing down is correct because low-beam headlights project light downward, reducing the blinding glare reflected by water droplets in fog. High beams worsen visibility by reflecting light directly back into the driver's eyes. Tailgating increases collision risks, and driving on the shoulder is illegal and hazardous. Under SAAQ guidelines, drivers must adapt their vehicle speed and lighting to current atmospheric conditions to maintain safety. This topic is highly relevant for the SAAQ Class 5 knowledge test, which frequently assesses safe driving practices and proper headlight usage during adverse weather conditions.