IAAI Certified Fire Investigator (CFI) Practice Test

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• An item that tends to 'pull' toward the heat source if over 25 watts is known as what?
• Which term is associated with devices used to create visual displays through combustion and controlled explosive effects?
• Which fire characteristic is NOT indicated by the angle of the borders of the V pattern?
• A deflagration resulting from the sudden introduction of air into a confined space containing oxygen-deficient products of incomplete combustion?
• Which term denotes the energy release pattern that can cause explosive damage?
• Which material heats up the quickest under radiant flux: Oak Boards, Concrete Wall, Gypsum Plaster, or Rigid Polystyrene Panels?
• A phenomenon that does NOT occur to human bodies (not supported by evidence)?
• Latent Heat of Vaporization refers to the heat absorbed during which change?
• Fire patterns that indicate a deliberate attempt to distribute fire from one location to another
• Specific Gravity is described as the ratio of the density of a substance to the density of water for liquids and solids, and to air for gases. Which option correctly reflects this definition?
• What law governs marine fire investigations?
• Which term describes the combined effect of thermal conductivity, density, and heat capacity?
• When the fire plume reaches the ceiling and moves laterally along the ceiling, this is known as?
• A building described as Heavy timber construction is categorized as which Type?
• This is a fire effect to furniture that does NOT provide investigators with clues concerning the ignition source, but can show fire spread and intensity
• In CFD modeling for fire dynamics, what is the primary purpose of dividing the space into cells?
• Which two mechanisms describe convection heat transfer?
• If voltage is 120 volts and current is 3 amperes, what is the electrical power in watts?
• Which color on the NFPA 704 placard represents flammability?
• What does fire often cause standard copper conductors to do?
• Which concept should not be included in a summary report of findings?
• What document protects confidential, trade secret, and propriety information during a fire investigation?
• In arson investigations, which substance is often targeted because it can be recovered from materials such as concrete floors and is an ignitable liquid?
• What is the flash point of power steering fluid?
• Who coordinates entry and safety at a fire scene and can grant investigators access while the fire is still active?
• Which type of burning occurs in the early stages of a compartment fire?
• Which material is NOT commonly subject to self-heating?
• What is the formula for electrical power?
• Combustible materials should be kept 18 inches away from this fire protection device.
• Biological, chemical, physical, and radiological are examples of what concept fire investigators should be aware of at a fire scene?
• Thermal conductivity, density, and heat capacity are the three components of WHAT?
• To submit a proposal to the NFPA 921 Committee, forms are available from the
• An item in the home that burns at a peak HRR of 3000-5000 kW, hotter than a pool of gasoline or a polyurethane chair is the...
• Which construction type is noncombustible and built with steel and concrete with high fire resistance?
• What term denotes the amount of heat released during complete combustion, considered a constant for a specific fuel?
• Biological, chemical, physical, and radiological are examples of this concept that fire investigators should be aware of when investigating a fire scene.
• A hair dryer drawing 8.3 A on a 120-volt service consumes approximately how many watts?
• Which color is not part of the sprinkler head temperature color coding (orange to black)?
• Which category of fire is associated with multiple fires and trailers?
• A mechanism used to reduce voltages from the normal 120 V and to isolate the rest of an appliance from the supply circuit
• Which term describes the boundary lines marking the edge of a fire pattern?
• NFPA hazard placard: red TOP (flammability) yellow RIGHT (instability) blue LEFT (health) white BOTTOM (special/specific) is associated with which standard?
• In a typical gasoline-powered vehicle, which sequence correctly lists the components of the fuel system?
• Which term describes the post-mortem condition in which muscles contract due to heat exposure?
• Which option may indicate if a device was operating at the time of the incident?
• Which device is used to control the flow of water to underground piping such as sprinklers or hydrants?
• What investigative practice should be done at a fire scene as a minimum?
• Two factors or situations leading to a fire that may show the nature of the incident responsibility are called what?
• Which term describes evidence used to illustrate a fact with diagrams or models?
• Which gas is often described as a narcotic exposure during fires?
• A law that may govern the fire investigation of a boat is what?
• Which component on an electrical plug would most likely indicate it was designed to be inserted into a receptacle?
• Which explosion type is associated with dust and often lacks pronounced blast seats?
• In a post-suppression assessment, which activity identifies and controls remaining hotspots?
• This vehicle component will NOT usually ignite gasoline.
• Also known as "Conclusions", what term is used to describe the final hypothesis?
• Which fuel item has the greatest peak heat release rate in unconfined burning?
• Which of the following is NOT considered a competent ignition source?
• A protective device in motors that may reset after cooling
• Which factor in fire incidents causes more fatalities than flames?
• NFPA standard that prohibits gas piping in air ducts, clothes chutes, and elevator shafts
• What does TCO stand for in electrical safety?
• Which term describes the ideal proportion of fuel to air for complete combustion?
• Which act is identified by geographic area, clusters, temporal frequency, and materials and methods?
• Which term is the constant related to energy released during complete combustion per unit mass?
• Recreating pre-fire positions of contents is also known as what?
• What term describes any person, entity, or organization with obligations or whose rights or interests might be affected by the investigation of a specific incident?
• Which term refers to devices or effects used in fireworks that may be found on a boat?
• What term describes the interface that can form when there is a poor electrical connection?
• What is the best term for the standard plan that guides evidence handling in investigations?
• The optimum fuel/air mixture where combustion is most efficient.
• Fire spread from one fuel package to another is generally caused by which mechanism?
• What process describes decomposition into simpler molecular compounds due to heat alone?
• In fire scene analysis, how is fuel load defined?
• In the typical fuel system sequence, which component directly precedes the fuel injector or carburetor?
• In industrial-type buildings, which construction type is principally used?
• Which imaging modality is used during examination of the deceased body to detect hidden injuries and foreign materials?
• The reasoning process of moving from specific observations to broader generalizations is called what?
• What are the flame spread categories and their index ranges?
• Which option is used to identify the sprinkler head bulbs by temperature rating?
• This should be donned when dealing with hazardous chemicals.
• What is the term for a team comprised of a homicide detective, medical examiner, and fire investigator?
• Which term describes the energy that initiates ignition?
• A fire characteristic that is NOT necessarily an accurate indicator of the flame temperature
• Which term describes the fire plume behavior where hot gases travel along the ceiling before spreading?
• If a liquid has a flash point above 100°F, it is best described as which type of liquid?
• What term describes the rate at which energy is used?
• A fire scene with multiple ignition points is best described as which type of fire?
• The energy released during an explosion from the sudden conversion of potential energy and gas production under pressure is called?
• Fuel-air mixtures at or near the lower explosive limit (LEL) do NOT always produce less ________ than those near the upper explosive limit (UEL).
• Fire scene examinations should NOT be conducted in WHAT MANNER?
• Which of the following best describes a liquid with a flash point above 100°F?
• Which toxin's levels dissipate over time after removal from the fire environment?
• Which term refers to observable effects of fire on materials such as charring or glazing?
• Which type of fuel can only be ignited by a spark or pilot flame over specific ranges of gas concentration?
• These types of constructions or vehicles are similar in many ways to fires in houses and mobile homes.
• The failure of one of these types of construction features can affect adjacent members of a similar type.
• Static electricity flowing from cloud to ground or from cloud to cloud is known as what phenomenon?
• Which factor is influenced by additional fuels in a vehicle after ignition?
• What term describes the first cutting unit on a combine?
• Engine Oil Analysis can determine what about a vehicle?
• A type of fire dynamics analysis model that divides each room into two or more spaces.
• What type of evidence is an investigator's report?
• Which term describes the energy that leads to ignition, including ignition equipment and form?
• Which device requires keeping 18 inches away from combustibles to reduce fire risk?
• Recreating pre-fire positions of contents
• This firefighting tactic made directly above the fire will help localize the fire.
• Materials that can react with each other are known as which category?
• Which explosive limit defines the maximum concentration of a flammable gas in air at which ignition can still occur?
• Fire in which the heat release rate or growth is controlled by the amount of air available to the fire.
• What is the post-mortem response of the body to heat, characterized by contraction of muscles?
• The NFPA standard for hazard identification
• A liquid with a flash point below 100°F is classified as
• The practice of evidence collection and documentation is equally important in which investigations?
• Overheating on a circuit is most likely to occur at this location on a circuit.
• What are the two basic types of fire patterns?
• The ratio of the density of a substance to the density of a standard is called WHAT?
• In what group is one representative selected from each investigative party?
• The phrase 'In this phenomenon, the radiant ignition of exposed combustible materials is key' refers to which phenomenon?
• Which option best describes the reasoning used to test a hypothesis by deriving conclusions from general principles?
• A material with a flame spread index of 0-25 falls into which class?
• In fire analysis, what is the term for the total quantity of combustible contents of a building, space, or fire area expressed in heat units or the equivalent weight in wood?
• In the sequence of evidence handling, what step follows photographing an item?
• What is the name of the system used to rate a material's flame spread potential, with classes A, B, and C?
• Which fuse type combines overload protection with short-circuit protection using two elements?
• Copper melts at approximately which temperature in °F?
• What term describes the act of electrically joining conductive objects to establish a common electrical potential?
• The process whereby a material increases in temperature without drawing heat from its surroundings.
• The information presented in NFPA 921 establishes WHAT?
• What is the primary goal for an investigator when recording and photographing the scene?
• Which photography type is used to show the position of a small subject within a larger context?
• Which construction type is Wood framed construction?
• Specific Gravity is defined as the ratio of the mass of a given volume of a substance to the mass of an equal volume of water at 4°C.
• Geographic area, clusters, temporal frequency, and materials and methods are useful in identifying and establishing which act?
• To validate a canine alert sample, which laboratory process is required?
• More people are killed by this in a fire incident, not necessarily by the flames of fire
• Which term best describes a material that resists ignition and is often used in industrial construction?
• This type of door must be used when installed in a fire-rated wall.
• The temperature or point at which the vapor pressure of a liquid equals the external pressure applied.
• Which device interrupts electrical arc faults?
• Which firefighting strategy requires restricting the use of water hoselines, especially at the area of origin?
• Which condition is among the most dangerous when examining a boat that is afloat after a fire?
• Which construction type corresponds to Heavy timber or mill construction?
• Which term is used for the points in a circuit where conductors meet and where overheating risk is highest?
• Ohm's Law formula
• Which term describes one form of static electricity?
• All voltages are _______, which means that a battery or DC generator creates a potential difference that can force charge through a wire.
• An example of heat transfer, when heating a steel beam to an unexposed part of a building results in a fire in that location.
• What is the recommended perimeter distance for securing a blast scene relative to the furthest debris?
• Which category of fires is heavily influenced by weather patterns including wind and humidity?
• What term refers to the borders or boundaries of fire patterns?
• In distinguishing between Ordinary and Frame construction, which element is most affected?
• Which phase involves searching for hidden fires and removing hotspots after the main fire has been extinguished?
• Which term describes the combined practice of collecting and documenting evidence at a fire scene?
• The component that controls temperature in many heat-producing appliances.
• Which process occurs when heat alone causes material to break down without oxidation?
• Which will create more damage in an explosion: the Upper or Lower Explosive Limit?
• What term describes a catastrophic explosion caused by the rupture of a vessel containing a pressurized liquid when the vapor expands rapidly?
• The ratio of the average molecular weight of a gas or vapor to the average molecular weight of air is called WHAT?
• Weather history is an important factor when investigating these types of fires.
• AFCI stands for Arc-Fault Circuit Interrupter; what does the 'A' represent?
• Which fire process is vehicle motor oil NOT prone to undergo?
• Who has responsibility for monitoring safety conditions at the fire or explosion scene?
• Which equation expresses electrical power in terms of voltage and current?
• Which 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?
• Ignition that involves transferring sufficient heat to a fuel by passage of electrical current to ignite material that is closeby is called what?
• The standards that gas cylinders must conform to (Dept. of Transportation)
• A device on a fluorescent light fixture that transforms the voltage from household voltage to a higher voltage is called what?
• Which building design feature aims to limit fire to its origin by containing it within compartments?
• Which statement is true regarding the relationship between wildfires and the phenomenon of flashover?
• What is the upper explosive limit of methane?
• Which term describes a substance that will ignite on contact with an oxidizer?
• Which term describes the rate at which a material's surface temperature rises when exposed to heat?
• The chemical and physical changes that occur in gypsum wallboard surfaces during a fire.
• The ordinary sustained burning mode in most fires is called what?
• What document is used to prevent disclosure of confidential information during investigations?
• The ratio of the mass of a given volume of a substance to the mass of equal volume of water at 4°C is called what?
• What is the product of current (amps) and voltage (volts)?
• Which color on the NFPA 704 placard represents health hazards?
• What term denotes the minimum temperature needed to heat a fuel so as to ignite and begin self-sustained combustion?
• What type of evidence consists of statements by witnesses or experts?
• NFPA is not this type of institute.
• During a major investigation, what procedure is important to establish and follow when a particular item is deemed evidence?
• What type of heating results from the passage of an electrical current through a conductor?
• 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.
• Damage and fire patterns on concrete that are not a positive indicator of a liquid accelerant are called WHAT?
• Which component in heat-producing appliances melts a pellet to turn off the unit when overheated?
• Which fire pattern is often caused by a natural gas leak?
• In most single-family residences with a single-phase service that has three wires, what is the voltage between the two hot wires at the service entrance?
• As WHAT increases, determining the pattern at the point of origin becomes more difficult?
• A type of fire that produces more carbon monoxide and more soot than fuel-controlled fires.
• These can occur simultaneously and involve separate and independent examinations through which each party may develop an independent hypothesis.
• Which ignition source requires heat transfer from an electrical source to maintain until the adjacent fuel ignition temperature?
• An explosion caused by a combination of combustible materials heated to the ignition point and a sudden introduction of oxygen to support combustion?
• In fire analysis, which metric directly relates to the rate at which energy is added to the fire?
• Which law allows fire investigators to gain information in most states?
• During an explosion, the energy transformation primarily responsible for the blast effect is which?
• This is the difference between wildfire V-patterns and compartment fire V-patterns.
• What is the primary purpose of the Freedom of Information Act in the context of fire investigations?
• Which term is described as a fuel characteristic that has little significance when the fuel is released as a spray?
• A chemical reaction that combines a substance with oxygen is known as what?
• The fire phenomenon responsible for much of the physical evidence used by fire investigators.
• The radiant heat flux from the gas layer to the floor that indicates flashover onset is measured as how many W per cm2?
• Which construction type is noncombustible, built with steel and concrete, but with little to no fire resistance?
• In a vehicle fire, once a fuel is ignited, any additional fuels contained in the vehicle have significant effect on WHAT fire factor?
• What component uses exhaust gases for propulsion and is typically the hottest point in an internal combustion engine?
• Which term describes the softening of the wire's thermoplastic insulation due to heating?
• Initiation of combustion by heat but without a spark or flame?
• Which concept regarding physical evidence and the fire scene is NOT the sole responsibility of the fire investigator?
• Which term specifically describes the ratio of the average molecular weight of a gas or vapor to the average molecular weight of air?
• Which of these fuels has the lowest ignition temperature: kerosene, gasoline, methane, or propane?
• Which of the following is the expansion for the acronym AFCI, with the 'A' representing the concept described?
• 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 is called what?
• Which term describes the study used to forecast fire behavior and environmental interactions?
• The heat energy that brings about ignition.
• What is the standard unit of electric potential difference (voltage)?
• Which of the following is a plausible cause of engine compartment fires on boats?
• The term for keeping evidence intact and uncontaminated is known as what?
• Complicated patterns in glass.
• What is the process of extinguishing hotspots and searching for hidden fires after suppression efforts?
• What type of fire dynamics analysis model divides a room into many cells, enabling detailed computation of fluid movement?
• Which term describes the characteristic of an appropriate vapor-to-air mixture that will ignite when subjected to an ignition source?
• A meaningful analysis of a fire requires understanding of fire growth, the total heat released, and what?
• What describes observable or measurable changes in a material as a result of a fire?
• NFPA 921 is published on a revision cycle of how many years?
• Which statement correctly describes the behavior of carbon monoxide after a fire has been extinguished?
• 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?
• The remains of which appliance component may indicate if it was operating at the time of the incident?
• Which term denotes the rate of flow of electric charge?
• Not every portion of which NFPA document is essential to every fire or explosion incident?
• Which home item is cited as having a peak HRR in the 3000-5000 kW range?
• Electrical condition caused by a loose connection and oxide interface—what heating results?
• What is the measure of the rate of heat transfer to a surface?
• Fire patterns commonly created when a vertical flame plume does not reach the ceiling are called what?
• In glass, what term describes a network of fine cracks that can form from stress rather than direct impact?
• Heaters located just under the interior faces of a refrigerators keep this from occurring.
• The justification used to enter a property in order to extinguish a fire is known as what?
• Which evidence indicates pre-death trauma in a fire fatality?
• Deliberately setting fires to cause additional fires is characteristic of which category of fire?
• 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.
• Where can an investigator obtain recall information regarding fire causes in boats and the vessel manufacturer, model, and year?
• A type of device in a vehicle, which can cause an electrical overload to factory installed wiring is what?
• A professional description that describes the specific job task, lists items necessary to complete the task, and describes measurable outcomes and evaluations for the task is called what?
• Which term describes a chemical process of oxidation releasing heat and light?
• Which concept does NOT mean that an item of evidence cannot be removed from the fire scene to preserve it?
• Located at the origin, these should be considered individually during the development of a cause hypothesis.
• What does NFPA 921 primarily provide for fire investigators?
• Which valve type is commonly used to control water flow to a fire sprinkler system and is opened when the stem is up?
• A factor in OHM's law that can be calculated if you know resistance and voltage.
• The blast scene perimeter distance is recommended to be how many times the distance to the furthest debris?
• A type of material that, when trapped in a concrete floor, can be recovered by using lime, diatomaceous earth, or non-self-rising flour is called what?
• This occurs when intense radiated heat or direct flame contacts a surface during the fire, burning away deposits.
• Which term refers to the body formed by selecting one representative from each investigative party?
• Which device is designed to release water in response to heat?
• The primary difference between Ordinary and Frame constructions involves the construction of what component?
• What is the ignition temperature of power steering fluid?
• What term describes the condition that occurs when there is a poor electrical connection?
• Which category of fire is strongly indicated by the confirmation of multiple fires?
• Which interior-use material is not suitable for exterior use?
• These three, Trust, Caution, and Distrust, are types of what in investigative interviewing?
• Exigency statutes, search warrants, and verbal or written consent relate to which concept when investigating a fire?
• A specific device on a structure that is associated with electricity and is part of the electrical system.
• The melting point of copper is approximately which temperature in Fahrenheit?
• Which term describes a professional description that lists the necessary tasks, required items, and criteria for evaluating performance?
• Which best describes the white quadrant on the NFPA 704 placard?
• In wildland fire assessment, which characteristic is indicated by the degree of damage to fuels?
• Which term defines the temperature at which a liquid's vapor pressure equals the surrounding atmospheric pressure?
• An outside screw and yoke valve is open when the stem is in which position?
• If the fire origin is clearly defined, the cause can be determined even without which element?
• In fire testing or modeling, which term describes the air movement that must be considered for accurate results?
• The importance of this fire investigative practice is no different in wildfire investigations, compared to structural fires. Which practice is described?
• These can occur simultaneously and involve separate and independent examinations through which each party may develop an independent hypothesis.
• The position on a receptacle, where the cord's wider prong is forced to plug into, due to a change that was made to 20-amp cords in 1987
• Which concept governs entry into a fire scene when exigent circumstances, warrants, or consent may apply?
• Consensus agreement between interested parties should be developed prior to the commencement of WHAT?
• What fire dynamics model subdivides a room into multiple zones to simulate the spread of heat and smoke?
• In a wildland fire, which fire characteristic is indicated by the degree of damage to the wildland fuel?
• The type of pipeline used to convey natural gas from the storage or production facilities to local utilities
• Which statement best describes Backdraft?
• This feature distinguishes the heat-sensitive bulbs of sprinkler heads from each other
• Which term is used to describe the scene type where fire analysis must consider that evidence may still exist even if some materials are destroyed?
• What does OS&Y stand for in valve terminology?
• The type of number an investigator should look for during a boat fire investigation.
• Which term defines the ratio of the density of a substance to the density of water for liquids and solids?
• Which activity is typically performed outside the fire scene perimeter to replenish a fuel supply on a vehicle or equipment?
• What is an immediate concern to the fire investigator regarding the structure?
• What is the lower explosive limit of natural gas (methane)?
• Which concept regarding fire growth is often assessed through witness accounts?
• CFD stands for which term?
• Which risk poses the greatest danger when approaching a boat after a fire?
• What is the melting temperature of aluminum?
• NFPA 921 is this type of document.
• Which term describes a material that increases in temperature due to exothermic reactions with the surrounding atmosphere?
• What term describes the softening and loosening of the wire's thermoplastic insulation due to heating?
• The fire scene itself needs to be considered as WHAT?
• Which statement best describes the reasoning that is based on empirical data, training, and experience?
• Using the formula Watts = Amps × Volts, what wattage does a device draw if it uses 12.5 A on a 120 V circuit?
• Which technique is commonly used to document the sequence of events during a fire scene examination?
• What term describes any substance that can undergo combustion?
• In which setting do dust explosions most often occur, as dust accumulates in confined areas?
• What is a key consideration when validating a fire test or model regarding the fire's characteristics?
• This fire spread mechanism has four modes: conduction, flame, hot gas layer radiation, and drop down.
• What term describes any substance that will spontaneously ignite or explode upon exposure to an oxidizer?
• Which component of the human body acts as a fuel to sustain a flame?
• Most engine fires typically penetrate the interior compartment at this location of the vehicle.
• What type of explosion damage describes a heaving or pushing effect?
• The agency that provides recall information on marine vessel fires is which?
• The onset of flashover occurs when the temperature in the upper gas layer reaches which value?
• Which term describes a substance that spontaneously ignites upon exposure to atmospheric oxygen?
• The term associated with the air and gas flow in a compartment fire is
• The transport of heat energy from one point to another, caused by temperature difference.
• The process of electrically connecting two or more conductive objects.
• The starter motor draws its energy from this source.
• The most reliable type of sprinkler system.
• Which process regarding fuel-powered equipment should be performed outside the fire scene perimeter?
• In an electrical circuit, if the current leaving the panel is 12.5 A and flows through a 1500 W load, what is the amperage of the return path?
• Which color on the NFPA 704 placard represents instability?
• Engine Oil Analysis is used to determine which of the following?
• Where should firefighters re-fuel all gas-powered equipment away from the fire scene?
• Which object is associated with the greatest heat release rate among common furnishings?
• Which device isolates a load from the supply while stepping down voltage?
• A building described as Wood framed construction is categorized as which Type?
• Which term describes the destruction or alteration of evidence that hinders an investigation?
• The rate of fire growth, as determined by witnesses, is considered highly subjective.
• HIN stands for Hull Identification Number, used in investigations of which vehicle type?
• In sprinkler head temperature color coding from low to high, which sequence correctly lists the colors?
• What is the basic chemical process associated with combustion?
• What is the standard unit of electric current?
• The shattering type of explosion damage.
• The ignition temperature of power steering fluid is closest to which temperature?
• Which fire phenomenon is not really a consideration for wildfires?
• A protective device that motors are generally equipped with in a counter-top appliance, which may reset when the motor cools.
• Which term is used to describe the ratio of the average molecular weight of a gas or vapor to the average molecular weight of air?
• A liquid with a flash point below 100°F is classified as which type of liquid?
• A burn pattern analysis that is more useful for evaluating fire spread, rather than length or intensity of burning is called what?
• A type of scene or circumstances, in which fires do NOT always destroy all physical evidence.
• This may occur when the vapor pressure of a liquid exceeds atmospheric pressure.
• Which term describes a formal agreement among interested parties before a fire investigation begins?
• Which person can grant permission for a fire investigator to enter a scene before the fire is completely extinguished?
• Which is a type of analysis used to predict fire phenomena and environmental characteristics?
• These medical procedures should be done of the entire deceased body, including the clothing and associated debris found near the body.
• Which material is NOT acceptable for exterior use but acceptable for interior use?
• During a major investigation involving multiple tenants, which measure should NOT be allowed until the area has been examined and safety concerns addressed?
• To tell if a hole in a horizontal surface was burned from above or below, examiners look for WHAT?
• During excavation, which technique is used throughout the investigation to document the sequence of events?
• Which construction type is Ordinary construction with masonry or noncombustible exterior walls?
• Which device on a structure's electrical system is located where service enters the building and is connected to the exterior conduit?
• What is the range of numbers used on the NFPA 704 hazard rating scale?
• The first edition of NFPA 1033 was published in which year?
• The concluding interpretation of a fire investigation is referred to as what?
• Which term describes a fire pattern that is not necessarily an indicator of the presence of an ignitable liquid?
• Which type of reasoning moves from general premises to a specific conclusion?
• A sample obtained by canine alert is considered valid only after which step in evidence processing?
• Which type of photography is helpful in understanding the relationship of a small subject to its relative position in a larger area?
• An investigator can closely examine this component of a cord to determine if it was plugged into a receptacle.
• A boat device that owners fail to keep clean, which is a frequent cause of engine compartment fires on boats?
• Which organization develops standard methods for testing materials?
• What is the upper explosive limit of natural gas (methane)?
• Which type of fire normally produces char from thermal decomposition?
• In criminal proceedings, which standard must be satisfied to convict?
• The process of photographing an item, then collecting, tagging and logging it is called what?
• The electrical fault described as a pathway between an energized wire and a grounded wire is called what?
• This is the typical extent of thermal injuries sustained from an explosion flame front, due to the very short duration.
• The burden of proof in a criminal trial.
• The two mechanisms of convection heat transfer are
• Deductive reasoning is generally more confident than inductive reasoning. Which type of reasoning is generally less certain?
• Which condition does NOT cause a cherry-pink coloration to the skin of a fire victim and is NOT visible on all skin types?
• Which characteristic of structural explosion damage has no direct correlation to the vapor density of the gas-vapor fuel?
• Any substance that can undergo combustion is called what?
• A process whereby a material increases in temperature solely due to exothermic reactions between the material and the surrounding atmosphere is known as?
• Which lightning occurrence is less likely to cause a fire compared with cloud-to-ground?
• A pattern that is not necessarily an indicator of the presence of an ignitable liquid is called what?
• An investigator should notify this person(s) upon finding an incendiary device that has not activated
• What is the most common open-flame ignition source in non-fuel injected vehicles?
• Which type of pipeline conveys natural gas from storage or production facilities to local utilities?
• These construction features are tested for fire spread from below, but NOT from above.
• Which type of evidence is typically in written or recorded form, such as reports?
• The fifth and sixth amendments DO NOT answer questions regarding constitutional protections in relation to WHAT fire investigation aspect? (4th amendment issue)
• Which option correctly identifies the two-step approach to obtaining the appliance's identifying data in the area of origin?
• What type of evidence consists of tangible items?
• Which fire scenario is most likely to produce higher CO and soot due to limited ventilation?
• The unit used to express radiant heat flux that signals the onset of flashover is which of the following?