TCFP Fire Investigator: Questions With Expert
Solutions
Combustion Right Ans - chemical process of oxidation that occurs at a rate
fast enough to produce heat and usually light, in form of glow or flames
Conduction Right Ans - heat transfer by direct contact
Convection Right Ans - heat transfer by circulation via medium, such as gas
or liquid
Diffusion flame Right Ans - flame in which fuel and air mix or diffuse
together at region of combustion
Energy Right Ans - property of matter manifested as an ability to perform
work, by moving an object against a force, or by transferring heat
Exothermic reaction Right Ans - A reaction that releases energy in the form
of heat
Fire Right Ans - rapid oxidation process / chemical reaction resulting in
evolution of light and heat in varying intensities
Fire dynamics Right Ans - The detailed study of how chemistry, fire
science, and the engineering disciplines of fluid mechanics and heat transfer
interact to influence fire behavior.
fire point Right Ans - The temperature at which enough vapors are given
off to support continuous burning.
flashover Right Ans - Stage of a fire at which all surfaces and objects within
a space have been heated to their ignition temperature, and flame breaks out
almost at once over the surface of all objects in the space.
flash point Right Ans - Minimum temperature at which a liquid gives off
enough vapors at sufficient rate to support a momentary flame across its
surface.
,Fuel controlled fire Right Ans - A fire in which the heat release rate and
growth rate are controlled by the characteristics of the fuel, such as quantity
and geometry, and in which adequate air for combustion is available.
fuel Right Ans - A material that will maintain combustion under specified
environmental conditions.
Fuel Items Right Ans - Any articles that are capable of burning.
fuel package Right Ans - A collection or array of fuel items in close
proximity with one another such that flames can spread throughout the array.
heat Right Ans - form of energy characterized by vibration of molecules
that is capable of initiating and supporting chemical changes and changes of
state
heat flux Right Ans - The measure of the rate of heat transfer to a surface,
expressed in kilowatts
Heat Release Rate (HRR) Right Ans - The rate at which heat energy is
generated by burning.
heat transfer Right Ans - the flow of thermal energy from higher
temperature to lower temperature
neutral plane Right Ans - The line where the flow of the hot gas and cooler
air changes.
oxidizing agent Right Ans - substance that promotes oxidation during
combustion process
plume Right Ans - The column of hot gases, flames, and smoke rising above
a fire; also called convection column, thermal updraft, or thermal column.
premixed burning Right Ans - Burning in which the fuel and oxidizer are
mixed prior to combustion, as in a laboratory Bunsen burner or a gas cooking
range; propagation of the flame is governed by the interaction between flow
rate, transport processes, and chemical reaction.
, Pyrolysis Right Ans - the decomposition of solid organic matter by heat
radiation Right Ans - heat transfer by way of electromagnetic energy
stoichiometric ratio Right Ans - The optimum ratio in a fuel air mixture at
which point combustion will be most efficient (above the LEL and below the
UEL).
temperature Right Ans - degree of sensible heat of a body as measured by
thermometer or similar instrument
thermal conductivity Right Ans - measure of amount of heat that will flow
across a unit area with a temperature gradient of 1 degree per unit of length
(W/m-K, Btu/hr-ft-F)
Thermal decomposition Right Ans - irreversable change in chemical
composition as a result of pyrolysis
thermal inertia Right Ans - The properties of a material that characterize
its rate of surface temperature rise when exposed to heat; related to the
product of the material's thermal conductivity (k), its density (ρ), and its heat
capacity (c).
Thermal runaway Right Ans - Condition in which the heat generated
exceeds the amount of heat loss within the material.
thermometry Right Ans - the study of the science, methodology, and
practice of temperature measurement
Uninhibited chemical chain reaction Right Ans - A sustained oxidation
reaction that produces sufficient excess heat to continue heating unburned
fuel, making it available for combustion.
vaporization Right Ans - The change of state from a liquid to a gas
beveling Right Ans - A fire pattern that indicates fire Direction on wood
wall studs. The bevel leans toward the direction of travel.
Solutions
Combustion Right Ans - chemical process of oxidation that occurs at a rate
fast enough to produce heat and usually light, in form of glow or flames
Conduction Right Ans - heat transfer by direct contact
Convection Right Ans - heat transfer by circulation via medium, such as gas
or liquid
Diffusion flame Right Ans - flame in which fuel and air mix or diffuse
together at region of combustion
Energy Right Ans - property of matter manifested as an ability to perform
work, by moving an object against a force, or by transferring heat
Exothermic reaction Right Ans - A reaction that releases energy in the form
of heat
Fire Right Ans - rapid oxidation process / chemical reaction resulting in
evolution of light and heat in varying intensities
Fire dynamics Right Ans - The detailed study of how chemistry, fire
science, and the engineering disciplines of fluid mechanics and heat transfer
interact to influence fire behavior.
fire point Right Ans - The temperature at which enough vapors are given
off to support continuous burning.
flashover Right Ans - Stage of a fire at which all surfaces and objects within
a space have been heated to their ignition temperature, and flame breaks out
almost at once over the surface of all objects in the space.
flash point Right Ans - Minimum temperature at which a liquid gives off
enough vapors at sufficient rate to support a momentary flame across its
surface.
,Fuel controlled fire Right Ans - A fire in which the heat release rate and
growth rate are controlled by the characteristics of the fuel, such as quantity
and geometry, and in which adequate air for combustion is available.
fuel Right Ans - A material that will maintain combustion under specified
environmental conditions.
Fuel Items Right Ans - Any articles that are capable of burning.
fuel package Right Ans - A collection or array of fuel items in close
proximity with one another such that flames can spread throughout the array.
heat Right Ans - form of energy characterized by vibration of molecules
that is capable of initiating and supporting chemical changes and changes of
state
heat flux Right Ans - The measure of the rate of heat transfer to a surface,
expressed in kilowatts
Heat Release Rate (HRR) Right Ans - The rate at which heat energy is
generated by burning.
heat transfer Right Ans - the flow of thermal energy from higher
temperature to lower temperature
neutral plane Right Ans - The line where the flow of the hot gas and cooler
air changes.
oxidizing agent Right Ans - substance that promotes oxidation during
combustion process
plume Right Ans - The column of hot gases, flames, and smoke rising above
a fire; also called convection column, thermal updraft, or thermal column.
premixed burning Right Ans - Burning in which the fuel and oxidizer are
mixed prior to combustion, as in a laboratory Bunsen burner or a gas cooking
range; propagation of the flame is governed by the interaction between flow
rate, transport processes, and chemical reaction.
, Pyrolysis Right Ans - the decomposition of solid organic matter by heat
radiation Right Ans - heat transfer by way of electromagnetic energy
stoichiometric ratio Right Ans - The optimum ratio in a fuel air mixture at
which point combustion will be most efficient (above the LEL and below the
UEL).
temperature Right Ans - degree of sensible heat of a body as measured by
thermometer or similar instrument
thermal conductivity Right Ans - measure of amount of heat that will flow
across a unit area with a temperature gradient of 1 degree per unit of length
(W/m-K, Btu/hr-ft-F)
Thermal decomposition Right Ans - irreversable change in chemical
composition as a result of pyrolysis
thermal inertia Right Ans - The properties of a material that characterize
its rate of surface temperature rise when exposed to heat; related to the
product of the material's thermal conductivity (k), its density (ρ), and its heat
capacity (c).
Thermal runaway Right Ans - Condition in which the heat generated
exceeds the amount of heat loss within the material.
thermometry Right Ans - the study of the science, methodology, and
practice of temperature measurement
Uninhibited chemical chain reaction Right Ans - A sustained oxidation
reaction that produces sufficient excess heat to continue heating unburned
fuel, making it available for combustion.
vaporization Right Ans - The change of state from a liquid to a gas
beveling Right Ans - A fire pattern that indicates fire Direction on wood
wall studs. The bevel leans toward the direction of travel.
