What lights should a driver use when driving in dense fog?

Drive with sidelights and hazard warning lights.
Drive with dipped headlights and fog lights.
Drive with full headlights and fog lights.
Drive with sidelights and fog lights.

Explantion: In dense fog you should use dipped headlights and fog lights (where fitted). Sidelights are not strong enough in fog, and full headlights can reflect off the fog and make it harder to see where you are going.

Theory Tester

What lights should a driver use when driving in dense fog?

Managing Risk