There is heavy fog. What lights must vehicles have switched on?
A)The fog lights together with the hazard warning lights.
B)The position lights only.
C)The fog lights together with the dipped headlights.Correct
If while driving we notice the presence of heavy fog (dense fog), in addition to the dipped headlights (low beam) we must have the rear fog lights on, and if the vehicle is equipped with them, the front fog lights as well.