Headlights are required, day or night, when visibility is less than ____ feet.
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300
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500
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100
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Explanation
In Iowa, the law requires drivers to use their headlights from sunset to sunrise or whenever visibility is 500 feet or less. Do not use parking lights or daytime lights as a replacement. Headlights do a better job. Remember to keep your headlights clean and in good condition.
Answer Statistics
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Other questions in the same category: Proper Use of Windshield Wipers and Headlights
High beam headlights are most effective for speeds faster than:Headlights must be turned on:You should dim your lights for oncoming vehicles or when you are within 300 feet of a vehicle:On rainy, snowy, or foggy days, if you turn on your wipers, you should:If an approaching driver does not dim the headlights, you should:Low beam headlights must be turned on:If a vehicle using high beams is coming toward you:On rainy, snowy or foggy days, you should turn on your windshield wipers and:If the driver of an oncoming vehicle fails to dim the lights, you should look:Headlights must be turned on from sunset to sunrise. If you are using your high beams, you must dim your lights when an oncoming vehicle is within:
This question appears in the following DMV practice tests: