NC FIT Fire Investigation Technician Study Guide Questions & Answers
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NC FIT Fire Investigation Technician
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NC FIT Fire Investigation Technician
What are fire patterns? - ANSWERSVisible or measurable physical changes or identifiable shapes formed by a fire effect or group of fire effects
Appliances such as an electric range, dryer or water heater are often applied with what size wire? - ANSWERS6, 8, or 10 AWG
Common household wiring i...
NC FIT Fire Investigation Technician
Study Guide Questions & Answers
What are fire patterns? - ANSWERSVisible or measurable physical changes or
identifiable shapes formed by a fire effect or group of fire effects
Appliances such as an electric range, dryer or water heater are often applied with what
size wire? - ANSWERS6, 8, or 10 AWG
Common household wiring is? - ANSWERS14 and 12 AWG if it is copper.
Aluminum conductors melt in any fire and solidify into irregular shapes meaning they
have - ANSWERSLow melting temperatures
According to ANSI Z535.4 product safety and labels; caution indicates - ANSWERSa
potentially hazardous situation that, if not avoided, may result in minor or moderate
injury.
Deflagration is what speed? - ANSWERSSlower than the speed of sound.
What are some common examples of physical evidence - ANSWERSTraces of ignitable
liquid in flooring; blood; fingerprints; a tool mark that is at a point of forcible entry; faulted
electrical circuit
A statement of danger identifies: - ANSWERSThe nature and extent of the danger and
gravity of the risk of danger
Fire patterns, which are visual or measurable physical effects that remain after a fire are
what kind of evidence? - ANSWERSArtifact evidence
Fluids include both liquids and gases, but in fires we generally focus on -
ANSWERSGas flows
Propane (un-diluted) has a flammable range of: - ANSWERS2.15-9.6 percent
What are examples of forms of information - ANSWERSVerbal, written, visual and
electronic
Materials such as thermoplastics do not produce what when burned? - ANSWERSChar
Oxidation of non-combustible materials can produce what - ANSWERSProduce color
and texture changes and fire patterns
,What is a weatherhead - ANSWERSThe point where electrical service entrance cables
connect to the structure which is designed to keep water out of the conduit that carries
the wires.
The make-up of ______________ has a significant effect on the results of an explosion.
- ANSWERSThe fuel
What is physical evidence - ANSWERSAny physical or tangible item that tends to prove
or disprove a particular fact or issue
Probable cause - ANSWERSThe standard by which law enforcement has reason to
make an arrest/arrest warrant or obtain a search warrant
What is heat flux - ANSWERSThe measurement of the rate of heat transfer to a surface
What are interstitial spaces - ANSWERSThe space between the building frame and
interior walls
Once a window breaks or a door is opened, what is introduced - ANSWERSAdditional
oxygen that can greatly increase the fire size and spread
A lack of fire stops may allow for - ANSWERSVertical fire spread
The compartmentation of a structure refers to its - ANSWERSSubdivision into separate
sections or units
In ordinary construction, exterior walls are - ANSWERSMasonry or other non-
combustible
Where is non-combustible construction used primarily - ANSWERSCommercial,
industrial or high rises
Three branches of federal government - ANSWERSExecutive, legislative and judicial
To be involved in the combustion process, fuels must generally be in what state? -
ANSWERSGas or vapor
Which OSHA regulation deals with operations at a hazardous waste site and the
emergency response to hazardous material incidents? - ANSWERS29 CFR 1910.120
HAZWOPER (Hazardous Waste Operations and Emergency Response)
Where are linear patterns usually found? - ANSWERSOn horizontal surfaces and may
appear as lines of demarcation, extending and elongating across the surface
What is empirical data and when is it utilized? - ANSWERSFactual data that is based on
actual measurement, observation, or direct sensory experience rather than on theory
,Generally speaking, a simple arc does not produce enough - ANSWERSEnergy to
ignite most ordinary, higher density combustibles.
Distortion or deformity of an object indicates - ANSWERSMelting temperature was
never reached.
According to ANSI Z 535.4 product safety signs and labels "warning" means -
ANSWERSIndicates a potentially hazardous situation that if not avoided could result in
death or serious injury.
What is fire? - ANSWERSA rapid oxidation process, a chemical reaction, resulting in the
evolution of light and heat of varying intensities.
What type of question allows a witness to answer with a story? - ANSWERSOpen-
ended. These are the best type.
What is fire dynamics? - ANSWERSThe study of all the behaviors of fire
What is a method to locate anomalies along a conductor? - ANSWERSRub a cotton ball
along the conductor
What things should an analysis be based on? - ANSWERSExperience, knowledge,
experience and training of the person doing the analysis.
Mechanical power is the ___________ in a system - ANSWERSThe output
You should separate witnesses as soon as __________ - ANSWERSPossible. Why?
Mechanical power for motors is usually expressed as ___________ -
ANSWERSHorsepower
Electrical power is expressed as __________ - ANSWERSKilowatts
TRUE or FALSE: Comparing relative depth of calcinations can be a reliable method for
indicating fire spread. - ANSWERSTrue
Fire investigators can be found in what two sectors? - ANSWERSPublic (fire, police,
etc) and private (insurance companies)
What are privileged communications? - ANSWERSStatements made by certain persons
within a protected relationship (husband/wife, attorney/client, doctor/patient)
The medical community estimates burn damage by ____________ - ANSWERSThe
rule of 9s
, What are the degrees of burns? - ANSWERSFirst degree: reddening of skin; second
degree: blistering; third degree: full thickness damage to skin; fourth degree: damage to
underlying tissue and charring of tissue.
What are the seven steps of the scientific method? - ANSWERSRecognize the need;
define the problem; collect data; analyze the data; develop a hypothesis; test the
hypothesis; select the final hypothesis
What are the three states of matter? - ANSWERSSolid, liquid, gas/vapor
A hypothesis must be supported by _____ - ANSWERSAll facts
What happens when you remove a component from the fire/combustion process? -
ANSWERSThe fire will be extinguished
Data collection includes many things such as - ANSWERSRecognition of physical
evidence; collection of materials; documentation of personal observations; results of lab
exams; photographs, sketches, notes; official reports
What is negligence? - ANSWERSConduct that falls within the legal standard
established to protect others against harm; carelessness; failure to act
Most arson offenses are felony crimes punishable by ________ -
ANSWERSImprisonment and fines
Arson to an occupied structure is generally considered to be _____ - ANSWERSFirst
degree arson, punishable by substantial prison time, ranging to a life sentence in some
jurisdictions.
Who should receive a full autopsy to determine cause of death? - ANSWERSAll victims
of a fire or explosion
How does carbon monoxide enter the body? - ANSWERSAbsorbed into the blood
through tissue and inhalation while breathing
Once the origin of a fire has been accurately identified, the investigator can work to
determine the ___________ - ANSWERSCause
What is the primary energy source in a vehicle? - ANSWERSThe storage battery
A plan is most often referred to as __________ - ANSWERSA protocol
What is an inverted cone pattern - ANSWERSOften created by a vertical flame plume
not reaching the ceiling level. Will appear two dimensional as a triangle shape with its
base at the bottom
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