Chapter29-Fire Investigations Flashcards Preview

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Flashcards in Chapter29-Fire Investigations Deck (60):
1

Who should be called if there is loss of life or high content loss that has occurred during a fire, or if the fire or explosion was intentional or malicious

Fire inspector

2

What is an individual who is demonstrated the skills and knowledge necessary to conduct, coordinate, and complete an investigation

Fire inspector

3

What NFPA standard states the qualifications for fire investigators

1033

4

The first step of a fire investigation process is what

Determining the point of origin

5

What crew on the fire ground would be the most helpful with determining the point of origin

Initial attack crew

6

What is the best indicator of the point of origin

V shaped pattern

7

Due to the conviction of fire, area of origin is generally found where

At or near the lowest level of burning

8

What happens when burning debris falls or drops from the ceiling

False indicator

9

The deepest chargers in the structural members will often indicate what

Point of origin and fire spread

10

What are the two categories of vehicle fires

Driven or parked

11

Fires that occur while the car is being driven are most often due to what

Mechanical, electrical, or smoking

12

Where do you most mechanical fires results from

Engine compartment, brake assembly, or the exhaust system

13

In general how do wildland fires spread

Away from the point of origin

14

What area of a wildland fire is generally the point of origin

The heel

15

What are the circumstances or conditions, or agencies that bring together a fuel, ignition source, and oxidizer resulting in a fire or combustion explosion

Fire cause

16

What are the four general fire classifications

Accidental, natural, incendiary, or undetermined

17

What fire classification did not result from intentional or malicious human activity

Accidental fires

18

What are a few causes of natural fires

Lightning strikes and earthquakes

19

What classification of fire includes human activity that was intentional

Incendiary

20

What classification of fires uses specific causes of the fire which can't be determined

Undetermined fires

21

Fire cause determination requires what three things

Reliable ignition source, identifying the material that ignited, and the actions that brought them together

22

What is a friendly fire

Fires that are started intentionally for a purpose such as burning leaves and at some point get out of control

23

What is it called when materials around fireplaces are constantly heated and the material converts to pyrophoric carbon through pyrolysis and autoignition temps lower until ignition occurs

Pyrophoric ignition

24

What is the most common cause of electrical fires in structures

Miss use of the electrical system by building occupants

25

What is an octopus

Use of a multiple outlet device overloading the plug in the electrical system

26

A very important thing to check during fire investigation of appliances is what

What position the on off switch is in

27

How do you earthquakes most often cause fires

Movement causes gas lines and electrical equipment to short out combining ignition sources with fuel

28

What are a few timing device is used to delay the start of a fire

Cigarette/matches, candles, and alarm clocks

29

What is a pattern that results when materials are used intentionally to spread the fire from one area of the structure to another

Trailers

30

If Excel rents are suspected of starting a fire, where is the best place to check for residue

Under the carpet or at the base of the walls

31

Low levels of charring can sometimes indicate the use of what to start a fire

Accelerants

32

Pools of flammable liquids often create what type of burn pattern on walls and ceilings

Inverted V patterns

33

What burn pattern will result from air movement from one side of the fire cooling the wall surface where air enters the flame zone

Hourglass

34

What is the act of intentionally and maliciously destroying or damaging property through the use of fire

Arson

35

What are the four elements of Arson

Lighting of fire, will full intent, malice, and property

36

What is it called when a fire satyr has intentionally lit the fire with the desire to do damage or to collect insurance as a result of the fire

Malice

37

What is the main objective of the post scene investigation

Determine the point of origin

38

What are the three components to the fire tetrahedron

Heat, fuel, oxygen

39

What are the five questions that need to be answered to complete the post scene investigation

What factors brought together the components of the fire tetrahedron, what were the spread characteristics, were their injuries or fatalities, what human factors were involved in the ignition of fire, if arson was suspected were the four factors met

40

If an officer is interviewing subjects about a fire he must make sure to read them what

Their Maranda rights

41

What are the six Maranda rights

You have the right to remain silent, anything you say or do may be used against you, you have the right to an attorney, if you can't afford one one will be appointed to you, if you decide to answer questions now without an attorney you can stop at anytime, Do you understand these rights

42

What motive is the most common in arson cases

Revenge

43

What is the target in revenge cases

Personal property

44

Vandalism fires are generally set by how many people

Two or more

45

What is the main target of vandalism fires

Schools

46

Studies have shown that vandalism fires are set due to

Boredom and frustration

47

What are the three types of crime fires

Burglary, homicide, and embezzlement

48

What is the means of a fire

Method used by fire setters to bring the fuel and ignition sources together to start a fire

49

What is the most common source of ignition for fires

Matches

50

What are safety matches

Matches that can only be lit by striking on an abrasive service

51

Who should be contacted if the ignition source is suspected to be an alarm clock or timer

Fire marshal or inspector

52

Children under the age of seven start fires due to

Curiosity or accidents

53

Children ages 8 to 12 start fires due to

Psychological conflicts such as revenge, anger, or need for attention

54

What ages are considered the crisis age

13 to 18

55

Any person who has an impulse to deliberately and purposely set fires is a

Pyromaniac

56

Arousal by fire, interest in fire equipment, release after setting of a fire, and fires not set for profit are all examples or indications of what

Pyromania

57

What constituted the largest portion of all arson fires in 2002 according to the UCR program

Structures

58

What NFPA standard provides a definition of fire cause that should be applied during investigations

921

59

What is the fundamental element of arson

Fire

60

What is the first thing the company officer should determine when trying to eliminate an electrical caused to the fire

If the electrical service was turned on