TCFP FIRE INVESTIGATOR TEST \/FIRE INVESTIGATOR -MASTER
FOR TCFP EXAM 2023-2024 ACTUAL EXAM 350 QUESTIONS
AND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)
|ALREADY GRADED A
What are the indicators of flashover? – \u2026.ANSWER\u2026.Surface burning, burning from
above, demarcation line and a baked on appearence.
Homemade napalm is made from? – \u2026.ANSWER\u2026.A mixture of gasoline and
styrofoam.
Describe a truncated cone. – \u2026.ANSWER\u2026.A “U” shaped pattern on a wall extending
down from the ceiling.
What is a trailer? – \u2026.ANSWER\u2026.Anything used to spread fire from one area to
another.
Does a volatile liquid found in a bedroom prove an incendiary fire? – \u2026.ANSWER\u2026.No it
only indicates an incendiary fire.
What is the velocity of a high order explosion? – \u2026.ANSWER\u2026.3300 feet\/second
Low order explosions are characterized by? – \u2026.ANSWER\u2026.A pushing effect, large
broken (shattered) pieces.
What are the different types of explosions? – \u2026.ANSWER\u2026.Mechanical, electrical,
chemical, nuclear.
An over-pressurization of a container is an example of what type of an explosion? –
\u2026.ANSWER\u2026.Mechanical.
What are the secondary effects of an explosion? – \u2026.ANSWER\u2026.Reflection of the blast
waves, focusing of the blast energy, and shielding.
What is business interruption insurance? – \u2026.ANSWER\u2026.It reimburses the insured for
loss of income due to a fire.
What type of bomb requires the victim to do something to trigger the device? –
\u2026.ANSWER\u2026.An action bomb, ie booby trap.<\/p>\n\n\n\n
What type of bomb requires no action to trigger it? – \u2026.ANSWER\u2026.Time bomb.
What are the effects of negative blast pressure? – \u2026.ANSWER\u2026.The negative blast
pressure phase is less powerful but last longer than the positive pressure phase. It may
conceal the area of origin and\/or cause secondary damage.
Why is fire scene photograph difficult? – \u2026.ANSWER\u2026.The lack of lighting.
What is the most commonly used sketch at a fire scene? – \u2026.ANSWER\u2026.Floor plan
sketch.
What method of photograph should be used when documenting a fire scene? –
\u2026.ANSWER\u2026.From least to most damage.
What are the plotting methods to document a fire scene? – \u2026.ANSWER\u2026.Rectangular,
transecting base lines and triangulation.
What does a pugilistic attitude indicate? – \u2026.ANSWER\u2026.A high heat fire Wthat had
nothing to due with the cause of death.
Absence of CO2 in the blood stream of a body located in a fire scene may indicate
what? – \u2026.ANSWER\u2026.The person was dead prior to the fire.
What increases the toxicity of CO2? – \u2026.ANSWER\u2026.Alcohol, barbiturates, smoking
other drugs.
Which is worse a light concentration of CO2 over long duration or a heavy concentration
or a short duration? – \u2026.ANSWER\u2026.They are equally bad.
CO2 bond to hemoglobin how much faster than O2? – \u2026.ANSWER\u2026.210 time faster.
Soot in the trachea may indicate what? – \u2026.ANSWER\u2026.The person was alive during the
fire.
During a civil action based on fraud by the insured what does not have to be proven. –
\u2026.ANSWER\u2026.That the fire was caused by arson.
How long do you have to provide proof of loss to an insurance company? –
\u2026.ANSWER\u2026.60 days.
Is NFPA 921 a guide or a standard? – \u2026.ANSWER\u2026.It is the Guide for Fire and
Explosion Investigations<\/p>\n\n\n\n
What are the six steps of the scientific method? – \u2026.ANSWER\u2026.Recognize the need
Define the problem
Collect the data
Analyze the data
Develop a hypothesis
Test the hypothesis
What step of the scientific method is inductive reasoning? – \u2026.ANSWER\u2026.Analyze the
data
What step of the scientific method is deductive reasoning? – \u2026.ANSWER\u2026.Test the
hypothesis
What are the four parts of the fire tetrahedron? – \u2026.ANSWER\u2026.Fuel (reducing agent)
Heat
Oxidizing agent
Uninhibited chemical chain reaction
What kind of reaction absorbs energy, an endothermic or an exothermic reaction? –
\u2026.ANSWER\u2026.Endothermic
What is heat transfer by direct contact called? – \u2026.ANSWER\u2026.Conduction
What is heat transfer by gas flow \/ air movement called? – \u2026.ANSWER\u2026.Convection
What is heat transfer by microwave energy called? – \u2026.ANSWER\u2026.Radiation
What is a fuel controlled fire? – \u2026.ANSWER\u2026.A fire that is limited by the amount of
combustibles.
What is a ventilation controlled fire? – \u2026.ANSWER\u2026.A fire that is limited by the amount
of oxygen.
What are the stages of fire growth? – \u2026.ANSWER\u2026.Ignition
Growth
Flashover
Fully Developed
Decay
What is a flashover? – \u2026.ANSWER\u2026.The transition phase from growth to fully
developed, where all surfaces reach ignition temperature almost simultaneously.
What is ignition of the underside of the hot gas layer called? – \u2026.ANSWER\u2026.Flameover
or rollover
What factors influence flashover conditions? – \u2026.ANSWER\u2026.Size of the compartment<\/p>\n\n\n\n
Height of ceiling
Ventilation
Amount of fuel
Layout of fuel
Location of fire in the compartment
What are fire patterns? – \u2026.ANSWER\u2026.The physical manifestation of the affects of fire
on materials.
What are the different types of fire patterns on the walls and ceiling? –
\u2026.ANSWER\u2026.Plume Generated patterns (often V shaped)
Ventilation generated patterns
Hot gas layer patterns (Line of demarcation)
What is spalling? – \u2026.ANSWER\u2026.The separation of chunks of concrete with explosive
force caused by the expansion of water (moisture) trapped in the concrete as it turns to
steam
What is char? – \u2026.ANSWER\u2026.Pyrolized carbonaceous material
What is oxidation? – \u2026.ANSWER\u2026.Physical change in appearance of a material
resulting from the combination of oxygen.
What is alloying? – \u2026.ANSWER\u2026.Mixing two metals heated then cooled to change their
properties. Often melts at a lower temperature.
What is a clean burn? – \u2026.ANSWER\u2026.When there was enough heat to burn away all
carbon deposits (soot) on a surface leaving a “clean” surface. Occurs on noncombustible surfaces.
What is soot? – \u2026.ANSWER\u2026.Elemental carbon produced during incomplete
combustion.
What is calcination? – \u2026.ANSWER\u2026.When chemically bound water is driven out of
gypsum walls by the heat of the fire.
Does a 25 Watt light bulb expand towards the fire or pull inward away from it? –
\u2026.ANSWER\u2026.Bulbs 25 watts or less pull away. Bulbs greater than 25 watts will expand
towards the fire.
What causes heat shadowing? – \u2026.ANSWER\u2026.An object blocking the travel of radiated
heat.
What is a dead load? – \u2026.ANSWER\u2026.The weight of things attached to the building, like
flooring, cloumns, and roof coverings.<\/p>\n","protected":false},"excerpt":{"rendered":"
TCFP FIRE INVESTIGATOR TEST \/FIRE INVESTIGATOR -MASTERFOR TCFP EXAM 2023-2024 ACTUAL EXAM 350 QUESTIONSAND CORRECT DETAILED ANSWERS (VERIFIED ANSWERS)|ALREADY GRADED AWhat are the indicators of flashover? – \u2026.ANSWER\u2026.Surface burning, burning fromabove, demarcation line and a baked on appearence.Homemade napalm is made from? – \u2026.ANSWER\u2026.A mixture of gasoline andstyrofoam.Describe a truncated cone. – \u2026.ANSWER\u2026.A “U” shaped […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[25],"tags":[],"class_list":["post-117872","post","type-post","status-publish","format-standard","hentry","category-exams-certification"],"_links":{"self":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/117872","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/comments?post=117872"}],"version-history":[{"count":0,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/posts\/117872\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/media?parent=117872"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/categories?post=117872"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.learnexams.com\/blog\/wp-json\/wp\/v2\/tags?post=117872"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}