If you see an oncoming vehicle at night, you should dim to low beams within how many feet?

• A. 500 feet
• B. 300 feet
• C. 1000 feet
• D. 200 feet

Answer: (A)

When you’re driving at night and an oncoming vehicle appears, switch to low beams to prevent blinding the other driver. The idea is to reduce glare for them while still keeping your own path visible, so you can react to hazards. This timing is about the moment you detect the approaching car, not waiting until you’re very close. If you wait too long, the other driver can be temporarily blinded by your high beams; if you switch too early or keep low beams longer than needed, you unnecessarily reduce your own night visibility. The best practice is to dim as soon as you see an oncoming vehicle so your lights won’t impair their vision, maintaining safety for everyone on the road.