IAAI CFI Exam Questions With Verified Answers Latest Update 2024/2025 | Scored A+

A liquid with a flash point ABOVE 100F - correct answers Combustible Liquid If the current flowing out from an electrical panel is 12.5 amps, and it then flows through an electrical load of 1500 watts, what is the amperage of the remaining current flow of the return circuit? - correct answers 12.5 If a hair dryer draws 8.3amps (in a home with 120-volt service), what is the wattage? *Power (P) = current (I) x voltage (V) Watts = amps x volts - correct answers 1000 The year of the first edition of NFPA 1033 - correct answers 1987 The recommended distance for securing the perimeter of a blast scene *That is, the distance from the furthest debris - correct answers 1.5 times IAAI CFI Exam Questions With Verified Answers Latest Update 2024/2025 | Scored A+ What temperature in the upper gas layer causes the onset of Flashover? - correct answers 1100°F The temperature at which copper melts - correct answers 1960°F The measurement of the radiant heat flux (from gas layer to the floor) that indicates the onset of flashover - correct answers 2 W/cm2 The voltage between the two hot wires at the service entrance cables in most single-family residences in the United States (single-phase service with three wires) - correct answers 240 volts The revision cycle for NFPA 921 (timespan) - correct answers 3 years The flash point of power steering fluid - correct answers 350°F In high-pressure fuel-injected vehicles, this is the typical range of pressure that is used to pump fuel from a fuel tank - correct answers 35-70 p.s.i. The lower explosive and upper explosive limit of natural gas (methane)? - correct answers 5 and 17 The ignition temperature of power steering fluid - correct answers 680°F Any substance that can undergo combustion - correct answers Fuel Two factors or situations leading to a fire that may show the nature of the incident responsibility. - correct answers Act or Omission This concept should not be included in a summary report of findings. - correct answers Additional Investigative Recommendations A law that may govern the fire investigation of a boat - correct answers Admiralty Law A type of device in a vehicle, which can cause an electrical overload to factory installed wiring - correct answers After-market Equipment Evidence of smoke or soot in the lungs, bronchi, and trachea is one of the most significant factors in confirming that, at the time of the fire, the victim was WHAT? - correct answers Alive and Breathing Those who have the responsibility for monitoring safety conditions at the fire or explosion scene - correct answers All Team Members The melting temperature of aluminum - correct answers 1220°F Which one of these is NOT considered a competent ignition source? Metal-to-metal sparks, Aluminum-to-pavement sparks, Metal-to-pavement sparks, Motor bearing sparks - correct answers Aluminum-to-pavement sparks A meaningful analysis of a fire requires an understanding of the fire growth, the total heat released, and WHAT? - correct answers Heat Release Rate What does he term AFCI stand for? And, the "A" specifically represents what? - correct answers Arc-fault circuit interrupter The organization that develops standard methods for testing materials - correct answers ASTM Initiation of combustion by heat but without a spark or flame - correct answers Auto-ignition A deflagration resulting from the sudden introduction of air into a confined space containing oxygen-deficient products of incomplete combustion - correct answers Backdraft An explosion caused by a combination of combustible materials heated to the ignition point and a sudden introduction of oxygen to support combustion - correct answers Backdraft A boat device that owners fail to keep clean, which is a frequent cause of engine compartment fires on boats - correct answers Backfire Flame Arrestor A device on a fluorescent light fixture that transforms the voltage from normal household voltage to a higher voltage - correct answers Ballast The starter motor draws its energy from this source - correct answers Battery The burden of proof in a criminal trial - correct answers Beyond a Reasonable Doubt The component that controls temperature in many heat-producing appliances - correct answers Bimetallic Thermostats This may occur when the vapor pressure of a liquid exceeds atmospheric pressure *And this is the most common mechanical explosion - correct answers BLEVE The temperature or point at which the vapor pressure of a liquid equals the external pressure applied - correct answers Boiling Point The process of electrically connecting two or more conductive objects - correct answers Bonding Most engine fires typically penetrate the interior compartment at this location of the vehicle - correct answers Bottom Passenger Side of the Windshield An investigator can closely examine this component of a cord to determine if it was plugged into a receptacle - correct answers Brass Prongs (male ends) The chemical and physical changes that occur in gypsum wallboard surfaces during a fire - correct answers Calcination A narcotic gas that one might be exposed to in the fire - correct answers Carbon Monoxide The levels of this toxin dissipate over time after removal from the fire environment. - correct answers Carbon Monoxide This toxic condition does NOT cause a cherry-pink coloration to the skin of the fire victim and is NOT visible on all skin types - correct answers Carbon Monoxide Poisoning This occurrence is the most common open-flame ignition source in non-fuel injected vehicles - correct answers Carburetor Backfire When the fire plume reaches the ceiling of a room and moves laterally along the ceiling - correct answers Ceiling jet An item in the home that burns at a peak HRR of kW, which is hotter than a pool of gasoline or a polyurethane chair - correct answers Christmas Tree This occurs when intense radiated heat or direct flame contacts a surface during the fire, burning away deposits - correct answers Clean Burn This is a fire effect to furniture that does NOT provide the investigators with clues concerning the type of ignition source, but can show fire spread and intensity - correct answers Collapsed Furniture Springs A fire characteristic that is NOT necessarily an accurate indicator of the flame temperature - correct answers Color This feature distinguishes the heat-sensitive bulbs of sprinkler heads from each other - correct answers Color Codes Thank you, EMAIL ME @ For help with Assignments/Essay/Projects/Test Banks/practice Exams and any other classwork. A chemical process of oxidation, which occurs at a rate fast enough to produce heat and usually light in the form of either a glow or a flame - correct answers Combustion A building design feature that aims to limit the fire to its origin. - correct answers Compartmentation Located at the origin, these should be considered individually during the development of a cause hypothesis - correct answers Competent Ignition Source This should be donned when dealing with hazardous chemicals - correct answers Complete PPE An example of heat transfer, when the heating of a steel beam to an unexposed part of a building results in a fire in that location - correct answers Conduction Overheating on a circuit is most likely to occur at this location on a circuit - correct answers Connection Points Consensus agreement between interested parties should be developed prior to the commencement of WHAT? - correct answers Joint Investigation Complicated patterns in glass - correct answers Crazing A type of scene or circumstances, in which fires do NOT always destroy all physical evidence - correct answers Crime Scenes A factor in OHM's law that can be calculated if you know resistance and voltage - correct answers Current (amperage) The reasoning in the scientific method used to test an hypothesis - correct answers Deductive Reasoning The reasoning process of moving from generalizations to particular assertion (*"Reduce to Deduce" *Test hypothesis ("deduce") *Test based on known facts *More confident assertion than induction) - correct answers Deductive Reasoning Type of evidence consisting of tangible items *as opposed to Testimonial Evidence or Documentary (written) Evidence - correct answers Demonstrative Evidence A burn pattern analysis that is MORE useful for evaluating fire spread, rather than length or intensity of burning - correct answers Depth of Char All voltages are _________________, which means that a battery or DC generator creates a potential difference that can force charge through a wire - correct answers Differential The ordinary sustained burning mode in most fires - correct answers Diffusion Flame Burning By taking these two steps, an investigator can obtain the manufacturer's name, model & serial numbers, manufacture date, and any warnings on an appliance, determined to be in the area of fire origin - correct answers Document and Carefully Move What type of evidence is an investigator's report? - correct answers Documentary Evidence A key method used by investigators when an appliance is determined to be in the area of origin, particularly the positioning of all controls and components. - correct answers Documentation The standards that gas cylinders must conform to (Dept. of Transportation) - correct answers DOT Standards Types of fuses that have one element for overloads and another element for short circuits - correct answers Dual Element Fuses A particular type of an explosion that does NOT often result in pronounced seats of explosion - correct answers Dust Explosion An explosion that most often occurs in confined areas of relatively wide dispersal, where combustible dust can accumulate in sufficient quantity to support a propagating reaction. - correct answers Dust Explosion This analysis may be performed to determine the pre-fire condition of the engine and to establish possible motive for the destruction of the vehicle. - correct answers Engine Oil Analysis The fire scene itself needs to be considered as WHAT? - correct answers Evidence The process of photographing an item, then collecting, tagging and putting it in a log - correct answers Evidence Collection The importance of this fire investigative practice is no different in wildfire investigations, compared to structural fires. - correct answers Evidence Collection and Documentation The person at a fire scene who manages various aspects of the evidence collection process, including an evidence log and evidence bagging, tagging, preservation and storage - correct answers Evidence Custodian The justification used to enter a property in order to extinguish a fire - correct answers Exigent Circumstances Also known as "Conclusions" - correct answers Final Hypothesis A team comprised of a homicide detective, medical examiner, and fire investigator - correct answers Fire Death Team A type of analysis used to predict fire phenomena and characteristics of the environment - correct answers Fire Dynamics Analysis Observable or measurable changes in or on a material as the result of a fire - correct answers Fire Effects Once a fuel is ignited in a motor vehicle, any additional fuels contained in the vehicle have significant effect on WHAT fire factor? - correct answers Fire Growth Rate In a wildland fire, this fire characterisic is indicated by the degree of damage to the wildland fuel - correct answers Fire Intensity This investigative determination is based on witness information, fire patterns, arc mapping, and fire dynamics - correct answers Fire Origin The fifth and sixth amendments DO NOT answer questions regarding constitutional protections in relation to WHAT fire investigation aspect? (4th amendment issue) - correct answers Fire Scene Access Recreating pre-fire positions of contents - correct answers Fire Scene Reconstruction This type of door must be used when installed in a fire-rated wall. - correct answers Fire-rated Door This is the typical extent of thermal injuries sustained from an explosion flame front, due to the very short duration. - correct answers First or Second Degree Burns A system used to rate a material's flame spread potential. *And these are the categories: Class A: Flame spread index 0-25 Class B: Flame spread index 26-75 Class C: Flame spread index 76-200 - correct answers Flame Spread Rating This type of fuel can only be ignited by a spark or pilot flame over specific ranges of gas concentration - correct answers Flammable Gases A liquid with a flash point below 100*F - correct answers Flammable Liquid The characteristic of an appropriate mixture of vapor-to-air, which will cause it to ignite when subjected to an ignition source - correct answers Flash point A specific fuel characteristic, which will have little or no significance when the fuel is released in a spray form. - correct answers Flash Point In this phenomenon, the radiant ignition of exposed combustible materials is key - correct answers Flashover This phenomenon will occur in a compartment with a low ceiling and fire on the floor, before the same fire in a room with high ceilings - correct answers Flashover Thank you, EMAIL ME @ For help with Assignments/Essay/Projects/Test Banks/practice Exams and any other classwork. This fire phenomenon is not really a consideration for wildfires - correct answers Flashover These construction features are tested for fire spread from below, but NOT from above - correct answers Floor Assemblies The two mechanisms of convection heat transfer - correct answers Forced and Natural This law allows fire investigators to gain information, in most states - correct answers Freedom of Information Act Any substance that can undergo combustion - correct answers Fuel