Final Answer:
When FDNY arrives in response to a fire/smoke condition they should expect all of the following to have been done EXCEPT: activating the fire suppression system.
Step-by-step explanation:
The primary responsibility of FDNY upon arriving at a fire/smoke condition is to assess the situation and take appropriate actions to control and extinguish the fire. In the context of a building the fire suppression system is designed to automatically activate in response to a fire using various methods such as sprinklers or chemical agents to suppress the flames. Therefore the activation of the fire suppression system is not an action that FDNY personnel would perform upon arrival but rather a preventive measure implemented within the building. This system is crucial for containment before the fire department arrives but is not under the direct control of the responding firefighters.
In emergency situations, time is of the essence, and understanding the sequence of actions is vital. The initiation of the fire suppression system is typically a pre-emptive measure taken by building management or automated systems in response to detected fire conditions. The firefighters' focus is on assessing the situation securing the area rescuing individuals if necessary and then executing firefighting tactics. Hence while they may interact with the fire suppression system during their operations it is not an action initiated by the FDNY upon arrival.
In conclusion the absence of the FDNY's initiation of the fire suppression system upon arrival distinguishes it from other crucial tasks they undertake in their efforts to control and extinguish fires making it the exception among the listed actions.