Chapter 15: Fire Investigations Flashcards Preview

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Flashcards in Chapter 15: Fire Investigations Deck (64)
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1

A ___________ is an individual who has demonstrated the skills and knowledge necessary to conduct, coordinate, and complete investigation.

Fire investigator

2

The __________ is the area where the ignition source and material first ignited and actually came together.

Area of origin

3

To determine the area of origin, you must work from the ______ damaged area to the ______ damaged area.

Least

Most

4

What 3 things are critical to the overall success of the investigation process?

Identifying witnesses

Securing the scene

Noting initial seen observations

5

What is the 1st step in determining the area of origin?

Examining the exterior of the structure/vehicle and the surrounding area

6

What is the 2nd step in determining the area of origin?

Examining the interior of the structure/vehicle

7

What is the 3rd step in determining the area of origin?

Interviewing witnesses/first responders

8

What is the 4th step in determining the area of origin?

Analyzing the information gathered using the scientific method

9

_______, _______ and ________ from the interior of the building or ignition points on the outside can cause exterior fire damage.

Products of combustion

Fire suppression efforts

Ventilation

10

Fire patterns are formed on interior surfaces of the structure as a result of _______ or ________.

Direct flame contact

Exposure to heat

11

______, ________, or ______ can be the heat transfer method that causes a fire pattern.

Conduction

Convection

Radiation

12

On _________, patterns may cause surface discoloration, spalling, melting, or distortion.

Noncombustible surfaces

13

This fire pattern is created as a result of the plume of hot gases rising above an individual fire.

Plume-generated

14

This fire pattern occurs when radiant heat forms in the hot gas later during a fire before flashover.

Hot-gas layer

15

This fire pattern can vary widely in appearance and was created by ventilation introduced to a fire.

Ventilation-generated

16

This fire pattern occurs after flashover or after a fire has burned for long periods of time, in which almost all vertical and horizontal surfaces in the compartment will show signs of damage.

Suppression-generated

17

This fire pattern is found on combustible surfaces were there has been direct contact with or intense radiant heat. It burns away any accumulated soot or smoke deposits on the surface, leaving demarcation lines.

Clean burns

18

These fire patterns were created when structural components such as wood studs or trusses are exposed to flame.

Pointers or arrows

19

This fire pattern has no common shape in which the fire followed the path of available fuels.

Irregular patterns on floors

20

This is the result of fire burning down word through the floor surface above the joist.

Saddle burn

21

These are on the image surfaces resulting from objects shielding the surface.

Protected areas

22

A company officer must request a fire investigator if: (3)

Loss of life

High content loss

Indication that the incident was intentional or malicious

23

Measurable and visual damage from the fire, combined with the patterns created from the various heat sources involved retell the ________.

History of the fire

24

Proper _________ is critical to any criminal or civil legal case.

Documentation

25

Evidence chain of custody, complete interview reports, photographs, and certified original copies of documents must be gathered and recorded into an _________.

Incident investigation report

26

Vehicle fire scenes can be divided into three areas of examination:

The scene around the vehicle

Exterior of the vehicle

Interior of the vehicle

27

Vehicle fire scene can further be divided to make documentation analysis easier: (3)

Engine compartment

Cargo compartment

Passenger compartment

28

Company officers should also determine and document the vehicles _________ when it burned. It will assist you in understanding the fire patterns.

Rest angle

29

Re-solidified ________ can determine the vehicle's rest angle.

Aluminum

30

_________ fire patterns show movement on the vehicle's body panels, such as the hood, fenders, doors, roof, and trunk.

Radial