Topic: Vehicle lights and horn · Nº 825 / 839

En caso de niebla densa, ¿es obligatorio el uso del alumbrado posterior antiniebla?
In dense fog, is it compulsory to use the rear fog light?
- ANo, es solo opcional.No, it is only optional.
- BSí, en caso de disponer de él.Yes, if the vehicle has one.
- CSí.Yes.
Show answer
Correct answer
- CSí.Yes.
Explanation
In dense fog, very heavy rain, heavy snowfall and clouds of dust or thick smoke, you must use the rear fog light.
Independent app: not affiliated with or endorsed by the DGT (Spain's Directorate-General for Traffic) or the Ministry of the Interior. The official exam is booked with the DGT and taken at its test centres. The questions here are practice material; the DGT's official question bank is not public.