What safety distance should be maintained between tank cars during operations?

The correct answer is 25 feet because this distance is established to ensure safety during operations involving tank cars. Maintaining a distance of 25 feet helps to minimize the risk of accidents or incidents related to flammable or hazardous materials that may be transported in these tank cars. It provides a buffer zone that allows for adequate response time in case of emergencies, reduces the potential for a chain reaction in the event of a spill or fire, and enhances overall safety for personnel and equipment involved in operations.

In addition to the safety reasoning, 25 feet is often a standard requirement in industry regulations and safety guidelines, designed to promote best practices in handling dangerous goods. This distance reflects a balance between operational efficiency and safety protocols that protect workers and the surrounding environment.