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Difficulty: EasyDriving in Fog and Reduced Visibility

When driving in dense fog, activating your high-beam headlights helps cut through the moisture and improves forward visibility.

Answer: Answer

Answer

False. Drivers must use low-beam headlights or fog lights in fog, as high-beam lights reflect off atmospheric moisture and cause reflection glare that impairs vision.
High-beam headlights reflect light off moisture droplets back into the driver's line of sight, creating severe glare. Low-beam headlights or fog lights must be used in reduced visibility conditions.

Step-by-Step Solution

1
Evaluate the effect of high-beam lights in fog.
High-beam light shines straight into suspended water droplets, creating light scattering and blinding glare.
Fog acts like tiny mirrors bouncing bright light directly back into the driver's eyes.
2
Identify the correct headlight setting according to DMV safety rules.
Low-beam headlights or fog lights direct light downward toward the road surface.
Angling light down minimizes reflective glare and safely illuminates the roadway ahead.

Key Concept

Headlight usage in reduced visibility conditions
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Topics

Driving in Fog and Reduced Visibility

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