Arizona Driving Permit Written Practice Test

What is advisable to do when driving in foggy conditions?

1. Use high beam headlights

2. Drive at the speed limit without any adjustments

3. Use low beam headlights and reduce speed

4. Keep your windows closed

The correct answer is: Use low beam headlights and reduce speed

Driving in foggy conditions presents unique challenges that significantly reduce visibility. Using low beam headlights is advisable because they are designed to illuminate the road immediately in front of the vehicle without causing excessive glare that can reflect off the fog, making it more difficult to see. High beam headlights can create a blinding effect in foggy conditions, as the light reflects off the fog droplets, creating a wall of light that can obscure the view ahead. Reducing speed is also critical in fog since it allows for greater reaction time to unexpected obstacles or changes in traffic. The combination of using low beam headlights and reducing speed enhances safety by improving visibility and control over the vehicle. Maintaining the speed limit without adjustments does not take into account the significantly reduced visibility in fog, which can make it unsafe to drive at normal speeds. Therefore, being cautious and adjusting your speed accordingly is key in such conditions. Keeping the windows closed is not directly relevant to visibility and driving safety in fog, as it pertains more to comfort; it does not influence the effect of fog on road visibility. Therefore, using low beam headlights and reducing speed is the best practice for safely navigating through foggy conditions.