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Fire Officer Principles and Practice Chapter 13 with 100- correct answers
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Fire Officer Principles and Practice Chapter 13 with 100- correct answers
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Fire Officer Principles andPractice Chapter 13 with
100% correct answers
The IC is responsible for completing...
NFIRS or equivalent local report
FO to determine if an investigator is needed... This is..
any fire that results in fatality or serious injury
Legal responsibility for conducting an investigation is defined by?
local or state legislation or regulations
Energy source that causes a material to ignite
Source of Ignition
The primary goal of fire cause determination by the local fire
company is to....
memorialize conditions found on arrival of the incident.
first step in fire cause determination...
determine area of origin
determining area of origin requires information from 4 sources
POAE
Physical marks, patterns
Observations by witnesses
Analysis of the chemistry and physics
Electrical Arcing
electrical arc defined
luminous discharge of electricity from one object to another
Source of ignition must have enough....
energy and remain in contact with fuel long enough to ignite.
, Fire Patterns: Movement patterns
V shape or U shape...
Fire Patterns: Intensity Pattern
how much energy was transferred to surrounding area and objects.
Intensity is indicated by response of various materials to fire's heat
release rate and heat flux.
Cause determination 3 steps:
1) determine source of ignition
2) determine fuel that was ignited.
3) determine circumstances allowing ignition source & fuel to come
together
3 Components of a competent ignition source
Generation
Transmission
Heating
Heating: There must be enough heat transfer from the source to the
fuel to continue long enough for fuel to reach ___________________
Ignition temperature.
Type of material vs form of Material. Explain difference
Type of material refers to the nature of the material itself. The form
is how it is used (i.e. cotton is the material in the form of clothing)
Physical configuration of material is important part of ignition
because...
easier or harder to ignite wood beam vs shavings...
determining the cause of fire the sequence.....?
sequence of events that brought together Fuel and ignition source.
Failure Analysis
A logical, systematic examination of an item, component, assembly,
or structure and its place and function within a system, conducted
in order to identify and analyze the probability, causes, and
consequences of potential and real failures.
Fire analysis
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