Which is the objective of the first phase of a transitional fire attack?

The objective of the first phase of a transitional fire attack is to reduce interior temperatures. This approach is designed to improve conditions for both firefighters and potential victims trapped inside a structure. By applying water to the exterior of the building, firefighters can create steam that helps lower the heat within, which aids in making subsequent interior attacks safer and more effective.

Reducing interior temperatures minimizes the risk of flashover and other dangerous fire behaviors while allowing for better visibility and conditions when firefighters eventually enter to search for victims or extinguish the remaining fire. This strategy is especially important in situations where heat and smoke may present hazardous conditions, reinforcing the necessity of prioritizing safety through temperature reduction.