How long will the red light stay ON when the float switch closes, as per the provided scenario?

The red light remaining ON for 1.5 minutes (or 90 seconds) when the float switch closes indicates a specific operational requirement in the scenario being addressed. Float switches are commonly used in applications like sump pumps or water tanks to monitor liquid levels. When the water reaches a certain point, the float switch activates to signal that action is needed.

In the context of this question, if the red light stays ON for 1.5 minutes, this likely serves an essential function such as providing a clear visual indication of the system's status, allowing operators or personnel sufficient time to respond to the change in liquid level. This duration suggests a balance between alerting staff and preventing unnecessary burn-out of the light or equipment.

Other potential durations, such as 22.5 seconds or 15 minutes, may not align with practical or operational standards typically employed in similar systems. A shorter time, like 22.5 seconds, might not provide adequate notice for action, while a much longer time like 15 minutes could be excessive, leading to confusion or overlooking the alert. The fact that the light remains ON immediately when triggered underscores the system’s design focus on immediate visibility of critical status changes without delays. Thus, the specification of 1.5