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BDifficulty 2/5

When using the rear fog light of a car without clearance lights, which of these lights must also be on?

Correct answer

With the sidelights

The position lights. Under article 15.3 of the General Vehicle Regulations, rear position lights come on automatically with fog lights; the rear fog light can only be switched on when dipped headlights, main beam or front fog lights are also on. Hazard warning lights do not replace these requirements. Use the rear fog light only in especially adverse conditions, such as dense fog or very heavy rain, and switch it off when those conditions end.

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All options

  • With the hazard warning light

  • With the sidelights

  • With the clearance light

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