NAFI CFEI Practice Exam 2026/2027
With Questions and Answers
Origin of the fire - correct answer <<<<<💕💕💕✔✔The same as the cause.
Electrical arcing - correct answer <<<<<💕💕💕✔✔Evidence of fire origin.
Correct order of evidence handling - correct answer <<<<<💕💕💕✔✔Collect, package, label,
document.
Fire tetrahedron component - correct answer <<<<<💕💕💕✔✔Not including Light.
Backdraft - correct answer <<<<<💕💕💕✔✔Occurs when oxygen is introduced into an oxygen-
depleted environment.
Bias in fire investigation - correct answer <<<<<💕💕💕✔✔Must be avoided by a fire investigator.
First step in the scientific method - correct answer <<<<<💕💕💕✔✔Form a hypothesis.
Tool for evaluating circuit integrity - correct answer <<<<<💕💕💕✔✔Multimeter.
High-order explosions - correct answer <<<<<💕💕💕✔✔Result in large craters and extensive
fragmentation.
V-patterns - correct answer <<<<<💕💕💕✔✔Always point to the point of origin.
Chain of custody - correct answer <<<<<💕💕💕✔✔Essential for evidence integrity.
, Recommended method for fire investigation according to NFPA 921 - correct answer
<<<<<💕💕💕✔✔Scientific method.
Opinions in court - correct answer <<<<<💕💕💕✔✔A fire investigator cannot offer opinions
outside their area of expertise.
Factors affecting fire pattern appearance - correct answer <<<<<💕💕💕✔✔Ventilation, Material
type, Suppression efforts, All of the above.
NFPA 921 requirement - correct answer <<<<<💕💕💕✔✔Requires fire investigators to be licensed
engineers.
Digital photographs - correct answer <<<<<💕💕💕✔✔Can be altered and are not admissible in
court.
Cause of an explosion - correct answer <<<<<💕💕💕✔✔Not typically a cause.
Mechanical failure - correct answer <<<<<💕💕💕✔✔A failure in machinery that can lead to
accidents or incidents.
Dust accumulation - correct answer <<<<<💕💕💕✔✔The buildup of dust that can contribute to
fire hazards.
Electrical short - correct answer <<<<<💕💕💕✔✔A fault in an electrical circuit that causes a
current to flow along an unintended path.
Radiation leakage - correct answer <<<<<💕💕💕✔✔The unintended release of radiation from a
source.
Multimeter - correct answer <<<<<💕💕💕✔✔A tool typically used to evaluate circuit integrity.
With Questions and Answers
Origin of the fire - correct answer <<<<<💕💕💕✔✔The same as the cause.
Electrical arcing - correct answer <<<<<💕💕💕✔✔Evidence of fire origin.
Correct order of evidence handling - correct answer <<<<<💕💕💕✔✔Collect, package, label,
document.
Fire tetrahedron component - correct answer <<<<<💕💕💕✔✔Not including Light.
Backdraft - correct answer <<<<<💕💕💕✔✔Occurs when oxygen is introduced into an oxygen-
depleted environment.
Bias in fire investigation - correct answer <<<<<💕💕💕✔✔Must be avoided by a fire investigator.
First step in the scientific method - correct answer <<<<<💕💕💕✔✔Form a hypothesis.
Tool for evaluating circuit integrity - correct answer <<<<<💕💕💕✔✔Multimeter.
High-order explosions - correct answer <<<<<💕💕💕✔✔Result in large craters and extensive
fragmentation.
V-patterns - correct answer <<<<<💕💕💕✔✔Always point to the point of origin.
Chain of custody - correct answer <<<<<💕💕💕✔✔Essential for evidence integrity.
, Recommended method for fire investigation according to NFPA 921 - correct answer
<<<<<💕💕💕✔✔Scientific method.
Opinions in court - correct answer <<<<<💕💕💕✔✔A fire investigator cannot offer opinions
outside their area of expertise.
Factors affecting fire pattern appearance - correct answer <<<<<💕💕💕✔✔Ventilation, Material
type, Suppression efforts, All of the above.
NFPA 921 requirement - correct answer <<<<<💕💕💕✔✔Requires fire investigators to be licensed
engineers.
Digital photographs - correct answer <<<<<💕💕💕✔✔Can be altered and are not admissible in
court.
Cause of an explosion - correct answer <<<<<💕💕💕✔✔Not typically a cause.
Mechanical failure - correct answer <<<<<💕💕💕✔✔A failure in machinery that can lead to
accidents or incidents.
Dust accumulation - correct answer <<<<<💕💕💕✔✔The buildup of dust that can contribute to
fire hazards.
Electrical short - correct answer <<<<<💕💕💕✔✔A fault in an electrical circuit that causes a
current to flow along an unintended path.
Radiation leakage - correct answer <<<<<💕💕💕✔✔The unintended release of radiation from a
source.
Multimeter - correct answer <<<<<💕💕💕✔✔A tool typically used to evaluate circuit integrity.
