In Portuguese traffic regulations, under what circumstances should the four-way hazard warning flasher lights (luzes de perigo) be used?
Answer and explanation
Correct answer: A. In emergencies due to breakdown, when towing, or to warn following traffic of sudden congestion or danger
- Step 1: Hazard warning flasher regulations. Step 2. Under Article 63, hazard flashers (quatro piscas) must only be used in genuine breakdowns, towing, or to warn following drivers of an immediate obstruction or severe queue. Answer: In emergencies due to breakdown, when towing, or to warn following traffic of sudden congestion or danger. Why not the others: Double-parking and searching for addresses are unlawful uses of emergency flashers.
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