Level 1
All fires involve a heat-producing chemical reaction between some type of fuel and a(an):
Oxidizer
The most common source of heat in combustion reactions is _______ energy.
Chemical
The primary oxidizing agent in most fires is:
Oxygen
What is a fully developed fire?
Has grown as much as it can.
What is an endothermic reaction?
A physical reaction that absorbs energy.
Conduction is heat transfer through:
Solids
When sufficient oxygen is available for flaming combustion in a compartment, the fire is said to be:
Fuel-limited
What is a flow path?
The method by which the fire receives the needed oxygen to sustain the combustion reaction.
Pyrolysis is off-gassing in:
Solids
Which method of heat transfer is a common cause of exposure fires?
Radiation
What are the four stages of compartment fire department, in order?
Incipient, growth, fully developed, decay
Most building codes rate the various construction types according to how long each construction type:
Maintains its structural integrity under fire conditions.
Products of combustion are often simply described as:
Heat and smoke
A reducing agent is:
The fuel in a combustion reaction.
What is an indicator of flashover?
Appearance of isolated flames in a compartment fire.
How can you control the flow path in a structure fire?
Controlling doors and ventilation openings to control the amount of air available to the fire.
In terms of fire behavior, power is the _________ rate during combustion. Page 143
Heat Release
What happens to gases with a vapor density of less than 1?
They will rise in air.
What can cause a backdraft to occur?
An increase in ventilation in a ventilation-limited compartment fire.
The risk of fire ______ when a structure is under construction, being renovated, or awaiting demolition.