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fire investigator final Exam With Correct Answers

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  • Fire investigator
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  • Fire Investigator

The term "scientific method of fire investigation" means: -Answer use scientific logic. ________ is the most critical component of ordinary fires, because it is essential for combustion. -Answer Oxygen To understand chemical combinations, it should be understood that every atom consists of ...

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  • December 29, 2023
  • 7
  • 2023/2024
  • Exam (elaborations)
  • Questions & answers

Subjects

  • the term scientific method of fire investigation
  • is the most critical component of ordinar
  • to understand chemical combinations it should be
  • an example of an element is
  • the chemistry of carbon contain

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  • Fire investigator
  • Fire investigator

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fire investigator final Exam With Correct
Answers The term "scientific method of fire investigation" means: -Answer use scientific logic.
________ is the most critical component of ordinary fires, because it is essential for combustion. -Answer Oxygen
To understand chemical combinations, it should be understood that every atom consists
of a central core of subatomic particles called ________ and ________. -Answer protons; neutrons
An example of an element is: -Answer All of these.
The chemistry of carbon-containing compounds is called: -Answer organic chemistry.
To be a successful fire investigator, ________ must be understood. -Answer All of these
A(n) ________ can occur when vapors, dust, or gases are premixed with an appropriate
amount of air. -Answer explosion combustion
________ is the ignition of the hot gas layer. -Answer Flameover
The most fundamental and important property of fire is: -Answer heat
Today's fire investigator must: -Answer All of these.
An exothermic reaction is: -Answer heat-producing.
A smoldering combustion can continue even in an oxygen-deficient atmosphere below: -
Answer 5%.
Virtually all commercial petroleum fuels associated with fires are considered to be: -
Answer mixtures
The fundamental property of vapor that predicts its behavior when released into air is its: -Answer vapor density.
________ flames are small flames that are associated with candles, and the zones of high fuel concentration, dissociation (reducing), mixing, and combustion are well defined
in layers. -Answer Laminar
The most important fuels from the standpoint of an investigator are: -Answer hydrocarbons Which of these gases produces an asphyxiating effect? -Answer Carbon monoxide
Incendiary fires are classified as: -Answer both those that are set to destroy and those that are set intentionally.
The atom is the smallest unit of an element that takes part in a chemical reaction. -
Answer t
Most of the destructiveness caused in a fire is the result of: -Answer heat
Direct flame contact is a combination of both ________ and ________ mechanisms. -
Answer convective; radiative
The proportions of fuel, oxygen, and final products are called the ________ of the reaction. -Answer stoichiometry
When an ignitable liquid is poured or spilled, only its ________ are combustible. -
Answer vapors
The National Fire Incident Reporting System (NFIRS) changed its categories in 2003, eliminating the term(s) ________ fires. -Answer suspicious
Most explosions occur during the ________ phase of a fire. -Answer first
Failure of a fluid-filled container due to overpressure caused by a source of extreme heating is often called a: -Answer BLEVE
One interesting property of dense vapors is their propensity to flow: -Answer horizontally
When it comes to incendiary fires, it is the responsibility of the investigator to: -Answer All of these.
The amount of heat produced by a fire or any heat source can be measured in what unit
of measurement? -Answer All of these
In general, experts will normally use which of the following major sources of information on which to base their opinions? -Answer All of these
A smoldering fire is characterized by the absence of ________ but the presence of very hot materials. -Answer flames
The amount of heat any fuel can produce when burned is called its heat of: -Answer combustion

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