How far away must a vehicle carrying hazardous materials be parked from an open fire?

Answer: C — 300 feet

A vehicle carrying hazardous materials must be parked at least 300 feet away from an open fire to ensure safety and minimize risk. This distance is mandated by regulations to prevent potential ignition of the hazardous materials due to heat or flames, which could lead to catastrophic consequences such as explosions or toxic releases. The 300-foot distance is a precautionary measure designed to provide a safe buffer zone, allowing for the dissipation of heat and reducing the likelihood of an accident. By adhering to this standard, drivers and handlers of hazardous materials can significantly enhance safety protocols in the vicinity of flammable hazards.