Flashcards in Fire Behavior Deck (21):
This is the stage a fire at which all surfaces and objects within a space has been heated to their ignition temperature and simultaneously ignite all surfaces and objects in the space.
When does flashover occur?
Between the growth and fully develop stages
When do backdraft conditions typically exist?
In the decay stage after the fire compartment has consumed all available oxygen
This is observed when flames present and layers of smoke as a result of heated gases that are pushed under pressure from the fire area into uninvolved areas?
This is the layering of smoke and gas clouds?
What are the four stages of fire growth?
Rollover should serve as a warning that the fire area may be reaching what point?
During this stage, fire develops and rollover is often seen in the adjacent compartment?
Effective engine company operations rely on the company's ability to do what?
To advance to and extinguish the seat of the fire and all other areas of fire extension inside and outside the structure
When should ventilation needs be identified?
When the fire officer complete their size up
What does proper ventilation decrease The likelihood of?
Flashover or rapidfire development event any creases the life safety factor of all occupants and firefighters within the fire structure
In most situations what should be in place prior to ventilation?
A charged hoseline
When using hydraulic ventilation the host rain should cover what percentage of the opening?
Using this type of ventilation technique the conditions within the compartment improves and increases visibility to enable the engine company to improve their environment?
What are the fire ground principles of smoke?
Smoke is potential fuel
Smoke density and color together or an indicator of the flammability
Velocity and pressure or indicators of heat and flowpath
Volume is a indicator of fire intensity
All of the above indicators for a incident profile regarding the location, status, and extent of fire
Smoke color is an indicator of what two things?
What is burning
Flammability of the smoke
What two things does velocity of smoke indicate
General location of the heat source
The fires current flow path
What is the best way for firefighters to maintain their personal safety?
Recognizing a change in the smoke conditions by identifying, reacting, and preventing flashover or rapidfire progression
This is the general plan or course of action decided upon to reach the objectives?
These are the specific actions employed to fill the strategy?