Question

If flashover happens prior to fire department controls efforts, the environmental changes becomes ___________. other events can cause ultra-rapid change; smoke explosions, backdrafts, partial collapse, the presence of accelerant fuels, and other phenomena.

a) Police
b) Medical
c) Fire
d) Ultra rapid

Answer 1

d) Ultra rapid. Flashover is a phenomenon in a fire where all combustible materials ignite simultaneously. If flashover occurs before fire department control efforts, the environmental changes become ultra rapid.

Step-by-step explanation:

Flashover is a phenomenon that occurs in a fire when the heat is intense enough to cause all combustible materials in a room to ignite simultaneously. It is characterized by a rapid spread of fire and a significant increase in temperature. When flashover happens prior to fire department control efforts, the environmental changes become ultra rapid.

Ultra rapid environmental changes can include events like smoke explosions, backdrafts, partial collapse, the presence of accelerant fuels, and other phenomena. These changes can cause further damage and make the situation more dangerous.

It is important for firefighters to be aware of the possibility of flashover and take appropriate precautions to prevent it from happening, such as properly ventilating the structure and using firefighting techniques that minimize the risk of ignition.