Chapter 17 Flashcards
FOPP CH17:
What is the first step in most fire investigation?
To determine the point of origin.
FOPP CH17:
What is the largest fire cause category and why?
Unknown - Because the cause is never determined for nearly 1/2 of all fires.
FOPP CH17:
Determining the point of origin requires the analysis of information from what four sources?
Physical marks or burn patterns
Observation of witnesses
Analysis of physics and chemistry of fire
Noting the location where electrical arching caused damage
FOPP CH17:
The specific cause of a fire can be determined only after the _________________ has been located.
Point of origin
FOPP CH17:
What is the three step process used to approach cause determination?
Determine the source of ingnition
Determine the fuel that was first ingnited
Determine the circumstances or human actions that allowed the ingnition source and fuel to come together
FOPP CH17:
According to the U.S. Fire Administration, _____% of vehicle fires were caused by mechanical failure or malfunction.
66%
FOPP CH17:
What is the second leading cause of vehicle fires, that account for nearly 20% of vehicle fires?
Arson
FOPP CH17:
According to the National Interagency Fire Center, there were nearly _________ wildland fires in 2003, and nearly _________ acres were burned.
86,000
5 million
FOPP CH17:
Wildland fires spread vertically through __________, from lower vegetation to taller, and horizontally through ___________.
Convection
Radiation
FOPP CH17:
What are the four classifications of fire cause?
Accidental
Natural
Incendiary
Undetermined
FOPP CH17:
___________ fires are the leading cause of home fires in the U.S.
Cooking
FOPP CH17:
What is the gradual lowering of the ignition temperature of wood until ignition occurs?
Pyrolosis
FOPP CH17:
Give the 6 basic motives for arson
Profit Crime concealment Excitement Spite/Revenge Extremism Vandalism
FOPP CH17:
Three types of evidence
Demonstrative evidence
Documentary evidence
Testimonial evidence
