NAFI COMPREHENSIVE EXAMS 2025/2026 QUESTIONS
WITH ANSWERS RATED A+
✔✔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.Virtual - pattern
c.The geometric shape of the pattern
d.Represents the name of the first individual who recognized the pattern
✔✔There is a gasoline pattern found on the premises - ✔✔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
✔✔false - ✔✔A BLEVE is a type of explosion involving the ignition of a dispersed vapor
cloud?
a.True
WITH ANSWERS RATED A+
✔✔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.Virtual - pattern
c.The geometric shape of the pattern
d.Represents the name of the first individual who recognized the pattern
✔✔There is a gasoline pattern found on the premises - ✔✔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
✔✔false - ✔✔A BLEVE is a type of explosion involving the ignition of a dispersed vapor
cloud?
a.True
