Lighting and Optical Signals

When is the use of the rear fog light mandatory?

Question image: When is the use of the rear fog light mandatory?
  • A On any night-time journey
  • ✓ In dense fog, heavy rain, or snow
  • C Whenever driving on a motorway
  • D Only when parking at night

Why this is the correct answer

The rear fog light is mandatory in conditions of dense fog, heavy rain, or snow, as its high intensity allows the vehicle to be seen from behind. It must be switched off as soon as visibility improves to avoid dazzling.

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