Arizona Drivers Permit Pactice Exam

In foggy conditions, what type of headlights should you use?

1. High beam headlights

2. No headlights

3. Low beam headlights

4. Parking lights

The correct answer is: Low beam headlights

Using low beam headlights in foggy conditions is crucial because they provide adequate illumination without causing glare. Fog can reflect light back towards the driver from the water droplets suspended in the air, making visibility even worse if high beam headlights are used. The low beams are designed to project light closer to the road surface, which helps in illuminating the lane and avoids reflecting excessive light back into the driver's eyes. This contributes significantly to safer navigation through reduced visibility conditions often caused by fog. The other choices are less effective for driving in fog. High beam headlights can create a blinding effect, making it difficult to see. Not using headlights at all would leave the driver and vehicle nearly invisible to others, significantly increasing the risk of an accident. Parking lights are intended for stationary vehicles and do not provide sufficient illumination for safe driving during foggy conditions. Therefore, low beam headlights are the best choice to ensure safety and visibility when navigating through fog.