The FDNY does not respond to which of the following types of signals?

The correct choice indicates that the FDNY does not respond to supervisory and trouble signals. Supervisory signals typically indicate that there is some sort of issue with the fire alarm system that does not require immediate danger or direct response from emergency services. For example, a supervisory signal may indicate a failure in the system or that a component needs maintenance, but it does not indicate an active fire or emergency situation that would necessitate a fire department response.

Similarly, trouble signals alert monitoring personnel that there is a problem with the fire alarm system itself, such as a power failure or a malfunction in a device. While these issues are important to address to ensure that the fire alarm system is fully operational, they do not require the urgency that a fire or smoke signal would trigger.

In contrast, fire and smoke signals indicate immediate dangers that require a prompt response from the FDNY to ensure the safety of occupants and property. Hazardous and emergency signals may also warrant a response due to potential danger. Test and maintenance signals are usually logged and handled by the facility's maintenance personnel, as they are not indicative of an emergency situation.