2023-2024 IAAI CFI Study Questions With Answers with Answers (258 Solved Questions)

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IAAI CFI STUDY QUESTIONS WITH ANSWERS(2023/2024)Combustible Liquid--answer-A liquid with a flash point ABOVE 100F12.5--answer-If the current flowing out from an electrical panel is 12.5amps, and it then flows through an electrical load of 1500 watts, what isthe amperage of the remaining current flow of the return circuit?1000--answer-If a hair dryer draws 8.3amps (in a home with 120-voltservice), what is the wattage?*Power (P) = current (I) x voltage(V)Watts = amps x volts1987--answer-The year of the first edition of NFPA 10331.5 times--answer-The recommended distance for securing theperimeter of a blast scene*That is, the distance from the furthest debris1100°F--answer-What temperature in the upper gas layer causes theonset of Flashover?1960°F--answer-The temperature at which copper melts2 W/cm2--answer-The measurement of the radiant heat flux (from gaslayer to the floor) that indicates the onset of flashover240 volts--answer-The voltage between the two hot wires at the serviceentrance cables in most single-family residences in the United States(single-phase service with three wires)3 years--answer-The revision cycle for NFPA 921 (timespan)

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350°F--answer-The flash point of power steering fluid35-70 p.s.i.--answer-In high-pressure fuel-injected vehicles, this is thetypical range of pressure that is used to pump fuel from a fuel tank5 and 17--answer-The lower explosive and upper explosive limit ofnatural gas (methane)?680°F--answer-The ignition temperature of power steering fluidFuel--answer-Any substance that can undergo combustionAct or Omission--answer-Two factors or situations leading to a fire thatmay show the nature of the incident responsibility.Additional Investigative Recommendations--answer-This concept shouldnot be included in a summary report of findings.Admiralty Law--answer-A law that may govern the fire investigation of aboatAfter-market Equipment--answer-A type of device in a vehicle, whichcan cause an electrical overload to factory installed wiringAlive and Breathing--answer-Evidence of smoke or soot in the lungs,bronchi, and trachea is one of the most significant factors in confirmingthat, at the time of the fire, the victim was WHAT?All Team Members--answer-Those who have the responsibility formonitoring safety conditions at the fire or explosion scene1220°F--answer-The melting temperature of aluminumAluminum-to-pavement sparks--answer-Which one of these is NOTconsidered a competent ignition source?Metal-to-metal sparks,Aluminum-to-pavement sparks,

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Metal-to-pavement sparks,Motor bearing sparksHeat Release Rate--answer-A meaningful analysis of a fire requires anunderstanding of the fire growth, the total heat released, and WHAT?Arc-fault circuit interrupter--answer-What does he term AFCI stand for?And, the "A" specifically represents what?ASTM--answer-The organization that develops standard methods fortesting materialsAuto-ignition--answer-Initiation of combustion by heat but without aspark or flameBackdraft--answer-A deflagration resulting from the suddenintroduction of air into a confined space containing oxygen-deficientproducts of incomplete combustionBackdraft--answer-An explosion caused by a combination ofcombustible materials heated to the ignition point and a suddenintroduction of oxygen to support combustionBackfire Flame Arrestor--answer-A boat device that owners fail to keepclean, which is a frequent cause of engine compartment fires on boatsBallast--answer-A device on a fluorescent light fixture that transformsthe voltage from normal household voltage to a higher voltageBattery--answer-The starter motor draws its energy from this sourceBeyond a Reasonable Doubt--answer-The burden of proof in a criminaltrialBimetallic Thermostats--answer-The component that controlstemperature in many heat-producing appliances

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BLEVE--answer-This may occur when the vapor pressure of a liquidexceeds atmospheric pressure*And this is the most common mechanical explosionBoiling Point--answer-The temperature or point at which the vaporpressure of a liquid equals the external pressure appliedBonding--answer-The process of electrically connecting two or moreconductive objectsBottom Passenger Side of the Windshield--answer-Most engine firestypically penetrate the interior compartment at this location of the vehicleBrass Prongs (male ends)--answer-An investigator can closely examinethis component of a cord to determine if it was plugged into a receptacleCalcination--answer-The chemical and physical changes that occur ingypsum wallboard surfaces during a fireCarbon Monoxide--answer-A narcotic gas that one might be exposed toin the fireCarbon Monoxide--answer-The levels of this toxin dissipate overtimeafter removal from the fire environment.Carbon Monoxide Poisoning--answer-This toxic condition does NOTcause a cherry-pink coloration to the skin of the fire victim and is NOTvisible on all skin typesCarburetor Backfire--answer-This occurrence is the most commonopen-flame ignition source in non-fuel injected vehiclesCeiling jet--answer-When the fire plume reaches the ceiling of a roomand moves laterally along the ceiling

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Christmas Tree--answer-An item in the home that burns at a peakHRRof 3000-5000kW, which is hotter than a pool of gasoline or a polyurethanechairClean Burn--answer-This occurs when intense radiated heat or directflame contacts a surface during the fire, burning away depositsCollapsed Furniture Springs--answer-This is a fire effect to furniturethat does NOT provide the investigators with clues concerning the type ofignition source, but can show fire spread and intensityColor--answer-A fire characteristic that is NOT necessarily an accurateindicator ofthe flame temperatureColor Codes--answer-This feature distinguishes the heat-sensitive bulbsof sprinkler heads from each otherCombustion--answer-A chemical process of oxidation, which occurs at arate fast enough to produce heat and usually light in the form of either aglow or a flameCompartmentation--answer-A building design feature that aims to limitthe fire to its origin.Competent Ignition Source--answer-Located at the origin, these shouldbe considered individually during the development of a cause hypothesisComplete PPE--answer-This should be donned when dealing withhazardous chemicalsConduction--answer-An example of heat transfer, when the heating of asteel beam to an unexposed part of a building results in a fire in thatlocationConnection Points--answer-Overheating on a circuit is most likely tooccur at this location on a circuit

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Joint Investigation--answer-Consensus agreement between interestedparties should be developed prior to the commencement of WHAT?Crazing--answer-Complicated patterns in glassCrime Scenes--answer-A type of scene or circumstances, in which firesdo NOT always destroy all physical evidenceCurrent (amperage)--answer-A factor in OHM's law that can becalculated if you know resistance and voltageDeductive Reasoning--answer-The reasoning in the scientific methodused to test an hypothesisDeductive Reasoning--answer-The reasoning process of moving fromgeneralizations to particular assertion(*"Reduce to Deduce"*Test hypothesis ("deduce")*Test based on known facts*More confident assertion than induction)Demonstrative Evidence--answer-Type of evidence consisting of tangibleitems*as opposed to Testimonial Evidence or Documentary (written) EvidenceDepth of Char--answer-A burn pattern analysis that is MORE useful forevaluating fire spread, rather than length or intensity of burningDifferential--answer-All voltages are _________________, which meansthat a battery or DC generator creates a potential difference that can forcecharge through a wireDiffusion Flame Burning--answer-The ordinary sustained burning modein most fires

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