What occurs when two apparatus equipped with preemptive devices approach the same intersection from different directions?

Answer: C — One will get a green light

When two aerial fire apparatus equipped with preemptive devices approach the same intersection from different directions, the functioning of these devices is crucial in managing traffic flow and ensuring response efficiency. Preemptive devices are designed to interact with traffic signals to facilitate the safe and rapid movement of emergency vehicles through intersections. In this scenario, typically one apparatus will be granted a green light, allowing it to proceed through the intersection while the other apparatus may receive a red light. This system is designed to minimize delays and enhance safety by providing clear instruction for the responding units. The priority is set for one vehicle, which helps in preventing potential collisions and facilitates quicker access to emergency sites. Thus, the mechanism of the preemptive devices ensures that at least one of the apparatus can proceed safely and promptly, thereby improving overall operational efficiency during emergency responses.