Tennessee Permit Practice Test

When driving in foggy conditions, why should you not put your headlights on high beam?

Approaching vehicles won't be able to see your oncoming vehicle. Low beams provide greater visibility and you can be better seen by other vehicles. The light from the fog creates blurry vision on your eyes. High beams reflect light back, impairing visibility.

Correct Answer:

Low beams provide greater visibility and you can be better seen by other vehicles.

Explanation:

When driving in foggy conditions, it is important not to put your headlights on high beam because high beams will reflect off the water droplets in the fog, creating a glare that can decrease visibility. Using low beams in foggy conditions helps to illuminate the road directly in front of you without causing this glare, which provides greater visibility for you as the driver and also makes your vehicle more visible to other drivers on the road. Therefore, option B is the correct choice as it explains why using low beams is safer and more effective when driving in foggy conditions.

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