Partial preview of the text
Download IAAI CFI EXAM BANK 2025 | ACCURATE CURRENTLY TESTING EXAM VERSIONS WITH REAL EXAM QUESTIO and more Exams Study of Commodities in PDF only on Docsity!
IAAI CFI Study Guide Exam | 2025 Complete IAAI CFI Actual Exam with Correct Verified Answers | Already Graded A+ Exam A meaningful analysis of a fire requires an understanding of the fire growth, the total heat released, and WHAT? - VV¥ Correct Answer > Heat Release Rate 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? - WW Correct Answer > 12.5 What does he term AFCI stand for? And, the "A" specifically represents what? - V/V Correct Answer > Arc-fault circuit interrupter The fire characteristic that most affects fire growth during the pre- flashover phase of a fire - V/V Correct Answer > Heat Release Rate A deflagration resulting from the sudden introduction of air into a confined space containing oxygen-deficient products of incomplete combustion - V/V Correct Answer > Backdraft The transport of heat energy from one point to another point, caused by temperature difference between those points - VVV¥ Correct Answer > Heat transfer The organization that develops standard methods for testing materials - V¥¥ Correct Answer > ASTM Initiation of combustion by heat but without a spark or flame - Vv Correct Answer > Auto-ignition What temperature in the upper gas layer causes the onset of Flashover? - V/V Correct Answer > 1100°F The temperature at which copper melts - VV Correct Answer > 1960°F The measurement of the radiant heat flux (from gas layer to the floor) that indicates the onset of flashover - VVV¥ Correct Answer > 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) - V/V Correct Answer > 240 volts The revision cycle for NFPA 921 (timespan) - VV¥ Correct Answer > 3 years The flash point of power steering fluid - VV¥ Correct Answer > 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 - VV¥ Correct Answer > 35-70 p.s.i. The lower explosive and upper explosive limit of natural gas (methane)? - Yvv Correct Answer» 5 and 17 The ignition temperature of power steering fluid - VV¥ Correct Answer > 680°F Any substance that can undergo combustion - VV Correct Answer > Fuel Two factors or situations leading to a fire that may show the nature of the incident responsibility. - “VV Correct Answer > Act or Omission This concept should not be included in a summary report of findings. - VJ Correct Answer > Additional Investigative Recommendations A law that may govern the fire investigation of a boat - V/V Correct Answer > Admiralty Law Metal-to-pavement sparks, Motor bearing sparks - VJ Correct Answer » Aluminum-to-pavement sparks A boat device that owners fail to keep clean, which is a frequent cause of engine compartment fires on boats - VV Correct Answer > Backfire Flame Arrestor A device on a fluorescent light fixture that transforms the voltage from normal household voltage to a higher voltage - VV¥ Correct Answer > Ballast The starter motor draws its energy from this source - VV Correct Answer > Battery The burden of proof in a criminal trial - VV Correct Answer > Beyond a Reasonable Doubt The component that controls temperature in many heat-producing appliances - VJ Correct Answer > Bimetallic Thermostats This may occur when the vapor pressure of a liquid exceeds atmospheric pressure *And this is the most common mechanical explosion - VV¥ Correct Answer > BLEVE The temperature or point at which the vapor pressure of a liquid equals the external pressure applied - YJ Correct Answer > Boiling Point The process of electrically connecting two or more conductive objects - YW Correct Answer > Bonding Most engine fires typically penetrate the interior compartment at this location of the vehicle - V/V Correct Answer > Bottom Passenger Side of the Windshield When the fire plume reaches the ceiling of a room and moves laterally along the ceiling - V/V Correct Answer > Ceiling jet An item in the home that burns at a peak HRR of 3000-5000kW, which is hotter than a pool of gasoline or a polyurethane chair - VV¥ Correct Answer > Christmas Tree This occurs when intense radiated heat or direct flame contacts a surface during the fire, burning away deposits - VV¥ Correct Answer > 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 - VJ Correct Answer > Collapsed Furniture Springs A fire characteristic that is NOT necessarily an accurate indicator of the flame temperature - V/V Correct Answer > Color This feature distinguishes the heat-sensitive bulbs of sprinkler heads from each other - V/V Correct Answer > Color Codes 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 - YV~ Correct Answer > Combustion A building design feature that aims to limit the fire to its origin. - Vv Correct Answer > Compartmentation Located at the origin, these should be considered individually during the development of a cause hypothesis - VVV Correct Answer > Competent Ignition Source This should be donned when dealing with hazardous chemicals - Vv Correct Answer » Complete PPE The reasoning in the scientific method used to test an hypothesis - vv Correct Answer > 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) - V/V Correct Answer > Deductive Reasoning Type of evidence consisting of tangible items *as opposed to Testimonial Evidence or Documentary (written) Evidence - VJ Correct Answer > Demonstrative Evidence A burn pattern analysis that is MORE useful for evaluating fire spread, rather than length or intensity of burning - V/V Correct Answer > 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 - VJ Correct Answer > Differential The ordinary sustained burning mode in most fires - VVV¥ Correct Answer > 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 - VJ Correct Answer > Document and Carefully Move What type of evidence is an investigator's report? - VVV¥ Correct Answer > Documentary Evidence 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. - VJ Correct Answer > Engine Oil Analysis The fire scene itself needs to be considered as WHAT? - VVV¥ Correct Answer > Evidence The process of photographing an item, then collecting, tagging and putting it in a log - VJ Correct Answer > Evidence Collection The importance of this fire investigative practice is no different in wildfire investigations, compared to structural fires. - VVV¥ Correct Answer > 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 - VVV¥ Correct Answer > Evidence Custodian The justification used to enter a property in order to extinguish a fire - VJ ¥ Correct Answer > Exigent Circumstances Also known as "Conclusions" - ¥V¥ Correct Answer > Final Hypothesis A team comprised of a homicide detective, medical examiner, and fire investigator - VVV¥ Correct Answer > Fire Death Team A type of analysis used to predict fire phenomena and characteristics of the environment - VV¥ Correct Answer > Fire Dynamics Analysis Observable or measurable changes in or on a material as the result of a fire - VW Correct Answer 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? - VVV¥ Correct Answer > Fire Growth Rate This is the typical extent of thermal injuries sustained from an explosion flame front, due to the very short duration. - V/V Correct Answer > 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 - V/V Correct Answer > Flame Spread Rating This type of fuel can only be ignited by a spark or pilot flame over specific ranges of gas concentration - VV Correct Answer > Flammable Gases A liquid with a flash point below 100*F - VV Correct Answer > Flammable Liquid The characteristic of an appropriate mixture of vapor-to-air, which will cause it to ignite when subjected to an ignition source - VV¥ Correct Answer > Flash point A specific fuel characteristic, which will have little or no significance when the fuel is released in a spray form. - VV Correct Answer > Flash Point In this phenomenon, the radiant ignition of exposed combustible materials is key - VJ Correct Answer > 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 - Ww Correct Answer» Flashover This fire phenomenon is not really a consideration for wildfires - vv Correct Answer > Flashover 
