Texas Driver's License Knowledge TestSafe Driving PracticesMedium
A driver is operating their vehicle in dense fog. Which of the following lighting strategies is most appropriate and safe?
- AUse parking lights only to avoid blinding other drivers.
- BUse low-beam headlights, and fog lights if available.
- CTurn off all lights to prevent reflections and improve visibility.
- DUse high-beam headlights to penetrate the fog.
Show answer & explanationAnswer & explanation
Correct answer: B. Use low-beam headlights, and fog lights if available.
High beams reflect off fog and worsen visibility. Parking lights are insufficient. Turning off lights is extremely dangerous. Low beams and fog lights are designed to illuminate the road without causing excessive glare in foggy conditions.
Why the other options are wrong
- A. Parking lights are not bright enough to illuminate the road or make the vehicle visible to others in dense fog.
- C. Driving without lights in dense fog makes the vehicle nearly invisible to other drivers, leading to extreme danger.
- D. High beams reflect off fog particles, creating glare and reducing visibility for the driver.
Driving in Fog
Techniques and safety measures for operating a vehicle in conditions of reduced visibility due to fog.
- Use low-beam headlights and fog lights.
- Reduce speed significantly.
- Increase following distance.
Memory trick: When fog is thick, no high-beam trick, low and slow, that's the way to go!