Topic: Vehicle lights and horn · Nº 647 / 839

Con niebla poco densa, ¿es correcto que un vehículo circule con la luz antiniebla trasera encendida?

In light fog, is it correct for a vehicle to drive with the rear fog light on?

  • ASí, porque hay niebla.Yes, because there is fog.
  • BNo, porque la niebla no es densa.No, because the fog is not thick.
  • CSí, se puede usar opcionalmente cuando haya poca niebla.Yes, it may be used optionally when there is light fog.
Show answer

Correct answer

  • BNo, porque la niebla no es densa.No, because the fog is not thick.
Explanation

According to Article 106.2 of the RGC, the rear fog light may only be switched on in especially unfavourable conditions, such as thick fog. In light fog it is not justified: it dazzles drivers behind and can be confused with the brake lights.

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.