In Hungarian road traffic rules, when may a driver use the vehicle horn inside a built-up area under KRESZ regulations?

Answer and explanation

Correct answer: C. Only in immediate danger of accident or emergency

  1. Step 1: In built-up areas, the horn may only be used to prevent an immediate accident. Outside built-up areas, it may also indicate intention to overtake. Answer: Only in immediate danger of accident or emergency. Why not the others: Using the horn for social greetings or annoyance is an offense.

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