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CFEI Study Guide With Correct Answers Rated 100- Correct_.pdf
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9/5/24, 2:15 AMCFEI Study Guide
Practice questions for this set
Terms in this set (136)
Evidence - Demonstrative Tangible items; see, touch, smell, hear.
Evidence - Documentary Written form; business records, banking, calendars, phone records, fire reports, etc...
Evidence - Testimonial Competent live witness speaking under oath; two types; fact and expert
Evidence - illustrative Photos, sketches, maps, diagrams. Modes are frequently used at trial.
Evidence - illustravtive Photos and Videos; what, why, how, when
Evidence collection Document in place, document the collection, use proper container, (flag, bag, & tag)
Evidence - collection Fuel gas powered tools outside the perimeter. Find out where tools were refuels.
CFEI Study Guide
Heat transfer Conduction, convection, radiation
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Interviews Purpose of the interview; prepare for the interview, document the interview
Vehicle Fires Sparks from an aluminum wheel are not a competent ignition source.
The most common source of an open flame in a vehicle is an exhaust system backfire
Vehicle Fires
out of a carburetor.
Vehicle Fires Carburetor backfire leaves a distinct pattern on the hood.
Two basic fuel systems: vacuum/low pressure carbureted system, and high-pressure,
Vehicle Fires
fuel injected system.
Loose battery connections; not over-current protected; loose connections can result in
Vehicle Fires
intermittent arcing.
Vehicle Fires Power steering fluid: Flashpoint 347-356F, autoignition 680-720F.
Vehicle Fires Automatic Transmission Fluid: Flashpoint 302-536F, autoignition 626-716F.
Vehicle Fires Overcharging a battery does not cause it to explode.
Low order damage: characterized by walls bulge out or laid down, virtually intact, next
Explosions
to the structure. roofs slightly left.
Explosions High order damage: shattering of the structure, producing small debris pieces.
Post blast effects: burned debris away-fire preceded, unburned the debris away-no
Explosions
fire.
Explosions Dust explosions: most often occur in confined areas of relatively wide dispersal.
Explosions Search 1.5 times further than the farthest piece of debris.
Char shrinks as it forms. More reliable for evaluating fire spread, deduce the direction
Fire effects/ fire patterns based on depth, large shiny blisters (alligatoring) is not evidence of the use of an
accelerant.
Spalling: loss of surface material due to cracking, breaking, chipping, breakdown in
Fire effects/fire patterns
surface tensile strength, moisture present in the concrete, may appear lighter in color.
Fire effects/fire patterns Crazed glass: caused by rapid cooling.
Light bulbs 25W or more "pull" (gases expand and bubble out); 25W or less contain a
Fire effects/fire patterns
vacuum and can pull in.
Annealing (softening) of springs may provide clues concerning direction, duration, and
Fire effects/fire patterns
intensity.
Saddle burns - A U-shaped burn pattern found on the top of floor joists, caused by fire
burning down through the floor. Often, a saddle burn is caused by a burning liquid on
Fire effects/fire patterns
the floor or radiant heat from a material close to the floor. Saddle burns display deep
charring.
Inverted cone burns are indicative of the vertical flame plume not reaching the ceiling,
Fire effects/fire patterns
short-lived fires with a low HRR
Fire effects/fire patterns Melting Temperatures: Copper 1981F; Aluminum 1220F; Steel 2760*F
Mechanical: converted to heat when two materials rub against each other and create
friction.
Chemical: chemical reaction; exothermic and endothermic.
Heat Sources
Electrical: Converted to heat energy; flowing through a conductor.
Nuclear: splitting the nucleus of an atom into two smaller nuclei (nuclear fission)
CFEI Study Guide
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