IAAI CFI Study Questions (2024)

IAAI CFI Study Questions (2024) Combustible Liquid A liquid with a flash point ABOVE 100F 12.5 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? 1000 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 1987 The year of the first edition of NFPA 1033 1.5 times The recommended distance for securing the perimeter of a blast scene *That is, the distance from the furthest debris 1100°F What temperature in the upper gas layer causes the onset of Flashover? 1960°F The temperature at which copper melts 2 W/cm2 The measurement of the radiant heat flux (from gas layer to the floor) that indicates the onset of flashover 240 volts 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) 3 years The revision cycle for NFPA 921 (timespan) 350°F The flash point of power steering fluid 35-70 p.s.i. In high-pressure fuel-injected vehicles, this is the typical range of pressure that is used to pump fuel from a fuel tank 5 and 17 The lower explosive and upper explosive limit of natural gas (methane)? 680°F The ignition temperature of power steering fluid Fuel Any substance that can undergo combustion Act or Omission Two factors or situations leading to a fire that may show the nature of the incident responsibility. Additional Investigative Recommendations This concept should not be included in a summary report of findings. Admiralty Law A law that may govern the fire investigation of a boat After-market Equipment A type of device in a vehicle, which can cause an electrical overload to factory installed wiring Alive and Breathing 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? All Team Members Those who have the responsibility for monitoring safety conditions at the fire or explosion scene 1220°F The melting temperature of aluminum Aluminum-to-pavement sparks 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 Heat Release Rate A meaningful analysis of a fire requires an understanding of the fire growth, the total heat released, and WHAT? Arc-fault circuit interrupter what? What does he term AFCI stand for? And, the "A" specifically represents ASTM The organization that develops standard methods for testing materials Auto-ignition Initiation of combustion by heat but without a spark or flame Backdraft A deflagration resulting from the sudden introduction of air into a confined space containing oxygen-deficient products of incomplete combustion Backdraft An explosion caused by a combination of combustible materials heated to the ignition point and a sudden introduction of oxygen to support combustion Backfire Flame Arrestor A boat device that owners fail to keep clean, which is a frequent cause of engine compartment fires on boats Ballast A device on a fluorescent light fixture that transforms the voltage from normal household voltage to a higher voltage Battery The starter motor draws its energy from this source Beyond a Reasonable Doubt Bimetallic Thermostats The burden of proof in a criminal trial The component that controls temperature in many heat-producing appliances BLEVE This may occur when the vapor pressure of a liquid exceeds atmospheric pressure *And this is the most common mechanical explosion Boiling Point The temperature or point at which the vapor pressure of a liquid equals the external pressure applied Bonding The process of electrically connecting two or more conductive objects Bottom Passenger Side of the Windshield compartment at this location of the vehicle Brass Prongs (male ends) Most engine fires typically penetrate the interior An investigator can closely examine this component of a cord to determine if it was plugged into a receptacle Calcination f ire The chemical and physical changes that occur in gypsum wallboard surfaces during a Carbon Monoxide A narcotic gas that one might be exposed to in the fire Carbon Monoxide The levels of this toxin dissipate over time after removal from the fire environment. Carbon Monoxide Poisoning 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 Carburetor Backfire injected vehicles Ceiling jet This occurrence is the most common open-flame ignition source in non-fuel When the fire plume reaches the ceiling of a room and moves laterally along the ceiling Christmas Tree 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 Clean Burn This occurs when intense radiated heat or direct flame contacts a surface during t