Massachusetts Permit Practice Test 2026 - Free Permit Practice Questions and Answers

When driving in fog, reducing speed and using low beams is essential for maintaining safety. Fog can significantly decrease visibility, making it difficult to see both the road and other vehicles. High beams, while typically useful in low visibility situations, can actually create a glare in fog, reflecting off the moisture in the air and further impairing visibility.

Driving at the posted speed limit is not advisable in foggy conditions since the limit is based on ideal driving conditions. In fog, risks are elevated, and adjusting speed to align with visibility is crucial for safety. Following another vehicle closely is also dangerous, as it minimizes your reaction time and can lead to collisions if the vehicle in front suddenly slows down or stops. Therefore, reducing speed and using low beams emerges as the safest technique to navigate through fog effectively.