When driving in the rain, fog, or smoke in the daytime, what lights should drivers use?
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High beam lights.
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Emergency flashers.
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Low beam lights.
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None of the other answers are correct.
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Explanation
When driving in low visibility conditions, such as in fog or heavy rain, drivers must use their low beam headlights. The light from the high beams will reflect back off the fog and impair visibility even more. Under these conditions, headlights must always be switched on, and parking lights cannot substitute them.
Answer Statistics
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Other questions in the same category: Proper Use of Windshield Wipers and Headlights
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This question appears in the following DMV practice tests: