In fog, which headlights should you use?

• A.Parking lights only
• B.Low beams
• C.High beams, pointed into the fog
• D.No lights, so you can see taillights better

Why

Use low beams in fog. High beams reflect off the fog and create glare that actually reduces how far you can see.

Manual topic: Pennsylvania Driver's Manual (PUB 95) - Chapter 3: Learning to Drive · From the Pennsylvania Learner's Permit (Car) practice bank (PAC-166).

Practice the full Pennsylvania Learner's Permit (Car) test

More Adverse Conditions & Emergencies questions

• Pennsylvania requires headlights to be on:
• You must also turn on headlights when visibility is less than:
• In Pennsylvania, whenever your windshield wipers are in use due to weather, you must:
• In Pennsylvania, high beams must be dimmed when an oncoming vehicle is within:
• At night on a Pennsylvania road, you come up behind another vehicle. Within what distance must you dim your high beams?