NAFI CFEI
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1. The basic methodology of the fire a systematic approach c . methodology approach d .
investigation should rely on the use g b . approximation approacheneral approach - AN-
of a______________________and atten- SWER - a . systematic approach
tion to all relevant details a system-
atic
2. Absolute Temperature Absolute A temperature measured in Kelvins ( K ) or
Rankines ( R ) .
3. Accelerant A fuel or oxidizer , often an ignitible liquid , intention-
ally used to initiate a fire or increase the rate of growth
or spread of fire .
4. Accident ANSWER An unplanned event that interrupts an activity
and sometimes causes injury or damage or a chance
occurrence arising from unknown causes ; an unex-
pected happening due to carelessness , ignorance ,
and the like .
5. Active Fire Protection System A system that uses moving mechanical or electrical
parts to achieve a fire protection goal .
6. Ambient Someone's or something's surroundings , especially
as they pertain to the local environment ; for example
, ambient air and ambient temperature .
7. Ampacity The maximum current , in amperes , that a conductor
can carry continuously under the conditions of use
without exceeding its temperature rating .
8. Ampere The unit of electric current that is equivalent to a flow
of one coulomb per second ; one coulomb is defined
as 6.24 x 10 ^ 18 electrons .
, NAFI CFEI
Study online at https://quizlet.com/_dfsdmz
9. Arc A high - temperature luminous electric discharge
across a gap or through a medium such as charred
insulation .
10. Arc Mapping The systematic evaluation of the electrical circuit con-
figuration spatial relationship of the circuit compo-
nents , and identification of electrical arc sites to assist
in the identification of the area of origin and analysis
of the fire's spread .
11. Arc Site The location on a conductor with localized damage
that resulted from an electrical arc .
12. Arcing Through Char Arcing associated with a matrix of charred material
( e.g. , charred conductor insulation ) that acts as a
semiconductive medium .
13. Area of Origin A structure , part of a structure , or general geographic
location within a fire scene , in which the " point of
origin " of a fire or explosion is reasonably believed to
be located .
14. Arrow Pattern A fire pattern displayed on the cross - section of a
burned wooden structural member
15. Arson The crime of maliciously and intentionally , or reckless-
ly , starting a fire . or causing an explosion .
16. Autoignition Initiation of combustion by heat but without a spark or
flame .
17. Autoignition Temperature The lowest temperature at which a combustible mate-
rial ignites in air without a spark or flame .
, NAFI CFEI
Study online at https://quizlet.com/_dfsdmz
18. Backdraft A deflagration resulting from the sudden introduction
of air into a confined space containing oxygen - defi-
cient products of incomplete combustion .
19. Bead A rounded globule of re - solidified metal at the end
of the remains of an electrical conductor that was
caused by arcing and is characterized by a sharp line
of demarcation between the melted and unmelted
conductor surfaces .
20. Blast Pressure Front The expanding leading edge of an explosion reaction
that separates a major difference in pressure between
normal ambient pressure ahead of the front and po-
tentially damaging high pressure at and behind the
front .
21. BLEVE Explosions involving vessels that contain liquids un-
der pressure at temperatures above their atmospheric
boiling points .
22. Bonding The permanent joining of metallic parts to form an
electrically conductive path that ensures electrical con-
tinuity and the capacity to conduct safely any current
likely to be imposed .
23. British Thermal Unit ( BTU ) The quantity of heat required to raise the temperature
of one pound of water one degree Fahrenheit at the
pressure of one atmosphere and temperature of 60
degrees Fahrenheit .
24. Burning Rate The at which heat energy is generated by burning .
25. Calcination of Gypsum
Study online at https://quizlet.com/_dfsdmz
1. The basic methodology of the fire a systematic approach c . methodology approach d .
investigation should rely on the use g b . approximation approacheneral approach - AN-
of a______________________and atten- SWER - a . systematic approach
tion to all relevant details a system-
atic
2. Absolute Temperature Absolute A temperature measured in Kelvins ( K ) or
Rankines ( R ) .
3. Accelerant A fuel or oxidizer , often an ignitible liquid , intention-
ally used to initiate a fire or increase the rate of growth
or spread of fire .
4. Accident ANSWER An unplanned event that interrupts an activity
and sometimes causes injury or damage or a chance
occurrence arising from unknown causes ; an unex-
pected happening due to carelessness , ignorance ,
and the like .
5. Active Fire Protection System A system that uses moving mechanical or electrical
parts to achieve a fire protection goal .
6. Ambient Someone's or something's surroundings , especially
as they pertain to the local environment ; for example
, ambient air and ambient temperature .
7. Ampacity The maximum current , in amperes , that a conductor
can carry continuously under the conditions of use
without exceeding its temperature rating .
8. Ampere The unit of electric current that is equivalent to a flow
of one coulomb per second ; one coulomb is defined
as 6.24 x 10 ^ 18 electrons .
, NAFI CFEI
Study online at https://quizlet.com/_dfsdmz
9. Arc A high - temperature luminous electric discharge
across a gap or through a medium such as charred
insulation .
10. Arc Mapping The systematic evaluation of the electrical circuit con-
figuration spatial relationship of the circuit compo-
nents , and identification of electrical arc sites to assist
in the identification of the area of origin and analysis
of the fire's spread .
11. Arc Site The location on a conductor with localized damage
that resulted from an electrical arc .
12. Arcing Through Char Arcing associated with a matrix of charred material
( e.g. , charred conductor insulation ) that acts as a
semiconductive medium .
13. Area of Origin A structure , part of a structure , or general geographic
location within a fire scene , in which the " point of
origin " of a fire or explosion is reasonably believed to
be located .
14. Arrow Pattern A fire pattern displayed on the cross - section of a
burned wooden structural member
15. Arson The crime of maliciously and intentionally , or reckless-
ly , starting a fire . or causing an explosion .
16. Autoignition Initiation of combustion by heat but without a spark or
flame .
17. Autoignition Temperature The lowest temperature at which a combustible mate-
rial ignites in air without a spark or flame .
, NAFI CFEI
Study online at https://quizlet.com/_dfsdmz
18. Backdraft A deflagration resulting from the sudden introduction
of air into a confined space containing oxygen - defi-
cient products of incomplete combustion .
19. Bead A rounded globule of re - solidified metal at the end
of the remains of an electrical conductor that was
caused by arcing and is characterized by a sharp line
of demarcation between the melted and unmelted
conductor surfaces .
20. Blast Pressure Front The expanding leading edge of an explosion reaction
that separates a major difference in pressure between
normal ambient pressure ahead of the front and po-
tentially damaging high pressure at and behind the
front .
21. BLEVE Explosions involving vessels that contain liquids un-
der pressure at temperatures above their atmospheric
boiling points .
22. Bonding The permanent joining of metallic parts to form an
electrically conductive path that ensures electrical con-
tinuity and the capacity to conduct safely any current
likely to be imposed .
23. British Thermal Unit ( BTU ) The quantity of heat required to raise the temperature
of one pound of water one degree Fahrenheit at the
pressure of one atmosphere and temperature of 60
degrees Fahrenheit .
24. Burning Rate The at which heat energy is generated by burning .
25. Calcination of Gypsum
