NAFI CFEI Test Exam Questions And Answers Verified 100% Correct

NAFI CFEI Test Exam Questions And Answers Verified 100% Correct Testing of a hypothesis by comparing the investigators hypothesis to all known facts is using____________ reasoning. a.Deductive b.Inductive c.Both A and B d.Neither A or B - ANSWER deductive reasoning 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 - ANSWER 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 - ANSWER all of the above Luminescent flame temperatures are dependant on the fuel to oxygen ratio. a.True b.False - ANSWER true 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 - ANSWER timeline 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 - ANSWER Fault tree Protected areas result from an object or item prohibiting the products of combustion from depositingon materials which the object protects. a.True b.False - ANSWER true 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 - ANSWER backdraft What does the "V" in V-pattern represent? a.Vector - pattern b.Virtual - pattern c.The geometric shape of the pattern d.Represents the name of the first individual who recognized the pattern - ANSWER the geometric shape of the pattern Which of the following is NOT one of the three elements of arson? a.There has been burning of property b.The burning is incendiary in origin c.The burning is shown to be started with malice with the intent of destroying property d.There is a gasoline can found on the premises - ANSWER There is a gasoline pattern found on the premises A BLEVE is a type of explosion involving the ignition of a dispersed vapor cloud? a.True b.False - ANSWER false Adequate debris removal is essential in an origin investigation? a.True b.False - ANSWER true The court usually permits the fire and explosion investigator to refresh his memory from his noteswhile testifying in a deposition or trial? a.True b.False - ANSWER true In a fire, the human body is completely consumed? a.True b.False - ANSWER false Fire deaths can occur from: a.Inhalation of hot gases b.Inhalation of toxic gases c.Thermal Burns d.All of the Above - ANSWER all of the above Probable cause is not needed to obtain an administrative search warrant. a.True b.False - ANSWER true Heat transfer to another body or within a body by direct contact is called: a.Conduction. b.Convection. c.Radiation. d.Pyrolysis. - ANSWER conduction 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 - ANSWER true a In a compartment, flashover occurs because convective heat energy raises combustible to their auto-ignition temperature. a.True b.False - ANSWER false Combustion may continue with available oxygen concentrations lower than 1 percent. a.True b.False - ANSWER 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 - ANSWER true