Texas DMV Written Driving Practice Test

When driving in fog, using low beam headlights is essential for improving visibility while ensuring that you do not create glare that can further obscure your view. High beam headlights tend to reflect off the fog, rain, or snow, creating a wall of light that limits your ability to see clearly. This can make driving in fog conditions significantly more challenging and unsafe.

Low beam headlights, on the other hand, provide sufficient illumination of the road immediately in front of you without causing glare, allowing for a clearer view of the driving conditions, potential obstacles, and other vehicles. Keeping windows closed is not necessarily related to visibility but rather comfort and maintaining clear vision in the cabin. Speeding up to clear the fog is unsafe and counterproductive, as it increases the likelihood of losing control or colliding with other vehicles or obstacles that may be hard to see.