Low beams
Low beam or fog lamps only.
low beam
In fog you should use dipped headlights or front fog lights. Also you should use high intensity rear ( fog) lights.
You can but it makes matters worse. This would be the time to use your fog lights if you have them.
I don't use fog lights while driving in a foggy weather because I don't find it very useful at all. I just turn on my cars high beam lights.
Use the low beams if your car is not equipped with fog lights. It's never recommended to use high-beams in fog, as it makes it about 4x harder to see, and makes the fog look denser.
There isn't really a distance when you should use your fog lights, Switch on headlights, dip them if necessary and turn on fog lights if visibility is reduced. Fog lamps are very bright, however, so if you can see the vehicles behind you then it's likely they can also see you. In this case your fog lights will dazzle other drivers so turn them off
Low beam because high beam emitts too much of a pattern and basically does not help you. If you live in area that has alot of fog problems look into foglights. Also, in snow the same stands true.
Dipped headlights usually refers to your low beam headlight. If you're talking about light bulbs, then yes, some manufacturers use headlight bulbs which are also being used for fog lights. However, externally, dipped headlights are your low beam headlight.
High-beam lights are your sencondary head lights in any veicle. They can usually be turned on with the same botton you use to turn your head lights on. High beam lights are use to see farther and wider in dark areas.
low beams
leave parking lights on or lower beam headlights on