2025 LATEST UPDATED NAFI CFEI FINAL EXAM. COMPLETE TEST BANK WITH OVER 500 ACTUAL QUESTION, Exams of Nursing

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2025 LATEST UPDATED NAFI CFEI FINAL EXAM. COMPLETE TEST BANK

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true Probable cause is not needed to obtain an administrative search warrant. a.True b.False conduction Heat transfer to another body or within a body by direct contact is called: a.Conduction. b.Convection. c.Radiation. d.Pyrolysis. true Fuses and circuit breakers provide protection against electrical short circuits, ground/earth faults,and load currents that might be damaging (i.e. overloads) to the building electrical system.Properly functioning circuit protection may allow the elimination of the buildings wiring system as a potential cause of the fire. a.True b.False

false In pre-flashover conditions the primary heat transfer mechanism for fire spread through a compartment is radiation. a.True b.False false In a compartment, flashover occurs because convective heat energy raises combustible to their auto- ignition temperature. a.True b.False true Combustion may continue with available oxygen concentrations lower than 1 percent. a.True b.False true The way structures react in a fire often influence how the fire grows and spreads as well as how theymaintain their structural integrity during the fire. Therefore, the fire investigator should considerthe type of structure and method of construction when completing the analysis of fire growth and spread as a part of their fire investigation. a.True b.False false

all of the above Which of the following can be defined as a fuel gas? a.Natural gas b.Liquefied petroleum gas c.Manufactured gases d. all of the above all of the above Prior to conducting an on scene investigation many things should be identified, including: a.Date and time of incident b.Size and complexity of the incident c.Purpose of the investigation d.All of the above true Luminescent flame temperatures are dependant on the fuel to oxygen ratio. a.True b.False timeline The investigative tool used to graphically or in a narrative manner depict events relating to a fire or explosion in chronological order is called: a.Timeline b.Systems analysis c.Fault tree d.Computer modeling

Fault tree A diagram that places, in a logical sequence, the conditions and chains of events that are necessaryfor a fire or explosion to occur is called: a.Timeline b.Systems analysis c.Fault tree d.Computer modeling true Protected areas result from an object or item prohibiting the products of combustion from depositingon materials which the object protects. a.True b.False backdraft A deflagration resulting from the sudden introduction of air into a confined space containing oxygendeficient products of incomplete combustion. a.Flashover b.Flameover c.Smoke Explosion d.Backdraft the geometric shape of the pattern What does the "V" in V-pattern represent? a.Vector - pattern

b.False false In a fire, the human body is completely consumed? a.True b.False all of the above Fire deaths can occur from: a.Inhalation of hot gases b.Inhalation of toxic gases c.Thermal Burns d.All of the Above Absolute Temperature Absolute A temperature measured in Kelvins ( K ) or Rankines ( R ). Accelerant A fuel or oxidizer , often an ignitible liquid , intentionally used to initiate a fire or increase the rate of growth or spread of fire. Accident ANSWER An unplanned event that interrupts an activity and sometimes causes injury or damage or a chance occurrence arising from unknown causes ; an unexpected happening due to carelessness , ignorance , and the like.

Active Fire Protection System A system that uses moving mechanical or electrical parts to achieve a fire protection goal. Active Fire Protection System A system that uses moving mechanical or electrical parts to achieve a fire protection goal. Ambient Someone's or something's surroundings , especially as they pertain to the local environment ; for example , ambient air and ambient temperature. Ampacity The maximum current , in amperes , that a conductor can carry continuously under the conditions of use without exceeding its temperature rating. Ampere The unit of electric current that is equivalent to a flow of one coulomb per second ; one coulomb is defined as 6.24 x 10 ^ 18 electrons. Arc A high - temperature luminous electric discharge across a gap or through a medium such as charred insulation. Arc Mapping

Autoignition Temperature The lowest temperature at which a combustible material ignites in air 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. Bead A rounded globule of re - solidified metal at the end of the remains of an electrical conductor that was caused by arcing and is characterized by a sharp line of demarcation between the melted and unmelted conductor surfaces. Blast Pressure Front The expanding leading edge of an explosion reaction that separates a major difference in pressure between normal ambient pressure ahead of the front and potentially damaging high pressure at and behind the front. BLEVE Explosions involving vessels that contain liquids under pressure at temperatures above their atmospheric boiling points. Bonding The permanent joining of metallic parts to form an electrically conductive path that ensures electrical continuity and the capacity to conduct safely any current likely to be imposed.

British Thermal Unit ( BTU ) The quantity of heat required to raise the temperature of one pound of water one degree Fahrenheit at the pressure of one atmosphere and temperature of 60 degrees Fahrenheit. Burning Rate The at which heat energy is generated by burning. Calcination of Gypsum A fire effect realized in gypsum products , including wallboard , as a result of exposure to heat that drives off free and chemically bound water. Calorie The amount of heat necessary to raise 1 gram of water 1 degree Celsius at the pressure of 1 atmosphere and temperature of 15 degrees Celsius. Cause The circumstances , conditions , or agencies that brought about or resulted in the fire or explosion incident damage to the property resulting from the fire or explosion incident , or bodily injury or loss of life resulting from the fire or explosion incident. Ceiling Jet ANSWER - A relatively thin layer of flowing hot gases that develops under a horizontal surface as a result of plume impingement and the flowing gas being forced to move horizontally.

Combustion A chemical process of oxidation that occurs at a rate fast enough to produce heat and usually light in the form of either a glow or a flame. Combustion Products The heat , gases , volatilized liquids and solids , particulate matter , and ash generated by combustion. Competent Ignition Source transferring Competent Ignition Source An ignition source that has sufficient energy and is capable of transferring that energy to the fuel long enough to raise the fuel to its ignition temperature. Conduction Heat transfer to another body or within a body by direct contact. Convection Heat transfer by circulation within a medium such as a gas or liquid Creep The tendency of a material to move or deform permanently to relieve stresses Current

A flow of electric charge. Deductive Reasoning- Deductive The process by which conclusions are drawn by logical inference from given premises Deflagration Deflagration Propagation of a combustion zone at a velocity that is less than the speed of sound in the unreacted medium. Density Density The mass of a substance per unit volume , usually specified at standard temperature and pressure Detection Sensing the existence of a fire , especially by a detector from one or more products of the fire , such as smoke heat , infrared radiation radiation , and the like. ( 2 ) The act or process of discovering and locating a fire. Detonation Propagation of a combustion zone at a velocity greater than the speed of sound in the unreacted medium .. Diffuse Fuel A gas , vapor , dust , particulate , aerosol , mist , fog , or hybrid mixture of these , suspended in the atmosphere , which is capable of being ignited and propagating a flame front.

The process of air or gases being drawn into a fire , plume or jet Explosible A material with a pressure ratio ( maximum pressure / pressure at ignition , in absolute units ) equal to or greater than 2.0 in any test when tested using the explosibility or Go / No - Go screening test described in Section 13 of ASTM E1226 , Standard Test Method for Explosibility of Dust Clouds. ) Explosion energy ( chemical or of gases under pressure , or the mechanical work such as moving , changing , or release of gas under pressure. These mechanical ) into kinetic energy with the production and release The sudden conversion of potential high - pressure gases then do shattering nearby materials. Explosion Dynamics Study of how chemistry physics fire engineering disciplines of fluid and solid mechanics and heat transfer interact to science influence explosion behavior Explosive Any chemical compound , mixture , or device that functions by explosion Explosive Material Any material that can act as fuel for an explosion. Exposed Surface The side of a structural assembly or object that is directly exposed to the fire.

Extinguish To cause to cease burning. Failure Distortion , breakage , deterioration , or other fault in an item , component , system assembly , or structure that results in unsatisfactory performance of the function for which it was designed. Failure Analysis A logical , systematic examination of an item , component , assembly , or structure and its place and function within a system , conducted in order to identify and analyze the probability , causes , and consequences of potential and real failures. Fall Down The spread of fire by the dropping or falling of burning materials. Finish Rating The time in minutes , determined under specific laboratory conditions , at which the stud or joist in contact with the exposed protective membrane in a protected combustible assembly reaches an average temperature rise of 121 degrees Celsius ( 250 degrees Fahrenheit ) or an individual temperature rise of 163 degrees Celsius ( 325 degrees Fahrenheit ) as measured behind the protective membrane nearest the fire on the plane of the wood. Fire A rapid oxidation process , which is a chemical reaction resulting in the evolution of light and heat in varying intensities.

Fire Investigation The process of determining the origin , cause , and development of a fire or explosion. Fire Patterns The visible or measurable physical changes , or identifiable shapes , formed by a fire effect or group of fire effects. Fire Propogation The movement of fire from one place to another. Fire Scene Reconstruction The process of recreating the physical scene during fire scene analysis investigation or through the removal of debris and the placement of contents or structural elements in their pre - fire positions. Fire Science The of knowledge concerning the study of fire and related subjects ( such as combustion , flame , products of combustion , heat release , heat transfer , fire and explosion chemistry , fire and explosion dynamics , thermodynamics , kinetics , fluid mechanics , fire safety ) and their interaction with people , structures , and the environment. Fire Spread The movement of fire from one place to another.

First Fuel Ignited That which first sustains combustion beyond the ignition source Flame- A body or stream of gaseous material involved in the combustion process and emitting radiant energy at specific wavelength bands determined by the combustion chemistry of the fuel. In most cases , some portion of the emitted radiant energy is visible to the human eye. Flame Front The flaming leading edge of a propagating combustion reaction zone. Flameover The condition where unburned fuel ( pyrolysate ) from the originating fire has accumulated in the ceiling layer to a sufficient concentration ( i.e. , at or above the lower flammable limit ) that it ignites and burns ; can occur without ignition of , or prior to , the ignition of other fuels separate from the origin. Flammable Capable of burning with a flame. Flammable Limit The upper or lower concentration limit at a specified temperature and pressure of a flammable gas or a vapor of an ignitable liquid and air , expressed as a percentage of fuel by volume that can be ignited.