Final answer:
Automatic fire pumps are critical in active fire suppression systems, mainly where quick response to fire outbreaks is imperative. They provide immediate water supply to sprinkler systems in buildings containing flammable materials or critical assets.
Step-by-step explanation:
Automatic fire pumps are usually needed where a fire outbreak may occur immediately.
These pumps are part of a building's active fire protection system and are designed to supply a large volume of water to the fire sprinkler system to suppress fires quickly.
In facilities that contain flammable materials or critical assets, automatic fire pumps are essential to ensure that in the event of a fire, firefighting operations can commence without delay, thus mitigating damage and potential loss of life.