NAFI CFEI Test Questions and Answers
(A+ Verified Answers)
• Origin of the fire -✓✓The same as the cause.
• Electrical arcing -✓✓Evidence of fire origin.
• Correct order of evidence handling -✓✓Collect, package, label, document.
• Fire tetrahedron component -✓✓Not including Light.
• Backdraft -✓✓Occurs when oxygen is introduced into an oxygen-depleted
environment.
• Bias in fire investigation -✓✓Must be avoided by a fire investigator.
• First step in the scientific method -✓✓Form a hypothesis.
• Tool for evaluating circuit integrity -✓✓Multimeter.
• High-order explosions -✓✓Result in large craters and extensive fragmentation.
• V-patterns -✓✓Always point to the point of origin.
• Chain of custody -✓✓Essential for evidence integrity.
• Recommended method for fire investigation according to NFPA 921 -
✓✓Scientific method.
• Opinions in court -✓✓A fire investigator cannot offer opinions outside their area
of expertise.
• Factors affecting fire pattern appearance -✓✓Ventilation, Material type,
Suppression efforts, All of the above.
• NFPA 921 requirement -✓✓Requires fire investigators to be licensed engineers.
, • Digital photographs -✓✓Can be altered and are not admissible in court.
• Cause of an explosion -✓✓Not typically a cause.
• Mechanical failure -✓✓A failure in machinery that can lead to accidents or
incidents.
• Dust accumulation -✓✓The buildup of dust that can contribute to fire hazards.
• Electrical short -✓✓A fault in an electrical circuit that causes a current to flow
along an unintended path.
• Radiation leakage -✓✓The unintended release of radiation from a source.
• Multimeter -✓✓A tool typically used to evaluate circuit integrity.
• Bias -✓✓A tendency to favor one perspective over others, which a fire
investigator must avoid.
• Ventilation -✓✓The process that can affect fire pattern appearance.
• Material type -✓✓The kind of material involved which can affect fire pattern
appearance.
• Suppression efforts -✓✓Actions taken to extinguish a fire that can affect fire
pattern appearance.
• Evidence handling order -✓✓The correct sequence is collect, package, label,
document.
• NFPA 921 -✓✓A standard that requires fire investigators to be licensed
engineers.
• V-patterns -✓✓Always point to the point of origin of a fire.
(A+ Verified Answers)
• Origin of the fire -✓✓The same as the cause.
• Electrical arcing -✓✓Evidence of fire origin.
• Correct order of evidence handling -✓✓Collect, package, label, document.
• Fire tetrahedron component -✓✓Not including Light.
• Backdraft -✓✓Occurs when oxygen is introduced into an oxygen-depleted
environment.
• Bias in fire investigation -✓✓Must be avoided by a fire investigator.
• First step in the scientific method -✓✓Form a hypothesis.
• Tool for evaluating circuit integrity -✓✓Multimeter.
• High-order explosions -✓✓Result in large craters and extensive fragmentation.
• V-patterns -✓✓Always point to the point of origin.
• Chain of custody -✓✓Essential for evidence integrity.
• Recommended method for fire investigation according to NFPA 921 -
✓✓Scientific method.
• Opinions in court -✓✓A fire investigator cannot offer opinions outside their area
of expertise.
• Factors affecting fire pattern appearance -✓✓Ventilation, Material type,
Suppression efforts, All of the above.
• NFPA 921 requirement -✓✓Requires fire investigators to be licensed engineers.
, • Digital photographs -✓✓Can be altered and are not admissible in court.
• Cause of an explosion -✓✓Not typically a cause.
• Mechanical failure -✓✓A failure in machinery that can lead to accidents or
incidents.
• Dust accumulation -✓✓The buildup of dust that can contribute to fire hazards.
• Electrical short -✓✓A fault in an electrical circuit that causes a current to flow
along an unintended path.
• Radiation leakage -✓✓The unintended release of radiation from a source.
• Multimeter -✓✓A tool typically used to evaluate circuit integrity.
• Bias -✓✓A tendency to favor one perspective over others, which a fire
investigator must avoid.
• Ventilation -✓✓The process that can affect fire pattern appearance.
• Material type -✓✓The kind of material involved which can affect fire pattern
appearance.
• Suppression efforts -✓✓Actions taken to extinguish a fire that can affect fire
pattern appearance.
• Evidence handling order -✓✓The correct sequence is collect, package, label,
document.
• NFPA 921 -✓✓A standard that requires fire investigators to be licensed
engineers.
• V-patterns -✓✓Always point to the point of origin of a fire.
