by matt81


keywords:
Bookmark and Share



Front Back
What four elements make up the fire tetrahedron
Oxygen, fuel, heat, and a self-sustaining chemical reaction
What is the most recognized source of heat?
Electricity
What state must a fuel be in before ignition
Gaseous, Suspension state
What is the term used to describe the decomposition, or
transformation of a compound caused by heat
Pyrolysis
What are the four phases of a fire?
Incipient/ ignition phase, growth phase, fully developed phase, and
decay phase
) What does BLEVE stand for
Boiling liquid vapor explosion
The weight of a gas in relation to air is called what
Vapor Density
A chemical reaction that releases heat is what kind of reaction
Exothermic
What is a chemical reaction that includes the self sustaining rapid
oxidation of a fuel accompanied by the release of heat and light?
Combustion
What are the three products of combustion
. Heat, light, and smoke.
What are the three modes of heat transfe
Conduction, convection, and radiation
What is combustion at a rate below the speed of sound
Deflagration
What are class D fires
Metal fires
What are class C fires?
Electrical fires
A common source of mechanical heat is
friction
What are four sources of heat energy
Chemical, Mechanical, Electrical, Nuclear
- What three states can fuel be found in
Solid, Liquid, Gas
What is a sudden event that occurs when all the contents of a container reach their ignition temperature nearly simultaneously
Flashover
What type of chemical reaction absorbs heat or requires heat to bond atoms or molecules
Endothermic reaction
What percent of the air that surrounds Earth is oxygen
21 percent
What term describes when a concentration of gas falls within the range where it can ignite
Flammable limits
What is the phenomenon responsible for the stratification of air and fire gases into layers based on their temperature
Thermal layering
THE LOWEST TEMPERATURE THAT ANY FUEL WILL OFF-GAS AN IGNITABLE
MIXTURE THAT CAN SELF-IGNITE AND SUSTAIN BURNING IS KNOW AS WHAT
IGNITION TEMPERATURE
The point at which all contents within the perimeter of the fire’s boundaries are burning is what phase of a fire?
Fully developed
What are some hostile fire events
Flashover, Backdraft, rapid fire spread
ROLLOVER IS A SIGN THAT WHAT WILL HAPPEN SOON
FLASHOVER
Any process in which oxygen combines with an element or substance
is called what?
Oxidation
A cumbustion rate above the speed of sound is also known as what?
Detonation
Below what percent is there not enough oxygen to support
combustion
14 percent
What is the lowest temperature at which a fuel will ignite and sustain burning
Fire point
x of y cards