In Serbian road signage and signals, what does a sign showing a road entering an arched tunnel mouth indicate, and what lighting is required?

Answer and explanation

Correct answer: C. Road tunnel ahead; dipped headlights mandatory

  1. Step 1: Sign III-49 marks a tunnel entrance where activating dipped headlights is mandatory. Answer: Road tunnel ahead; dipped headlights mandatory. Why not the others: the alternative options do not represent statutory provisions under Serbian road signage and signalling regulations.

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