Chapter29-Fire Investigations

Question 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

Answer 1

Fire inspector

Question 2

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

Answer 2

Fire inspector

Question 3

What NFPA standard states the qualifications for fire investigators

Answer 3

1033

Question 4

The first step of a fire investigation process is what

Answer 4

Determining the point of origin

Question 5

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

Answer 5

Initial attack crew

Question 6

What is the best indicator of the point of origin

Answer 6

V shaped pattern

Question 7

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

Answer 7

At or near the lowest level of burning

Question 8

What happens when burning debris falls or drops from the ceiling

Answer 8

False indicator

Question 9

The deepest chargers in the structural members will often indicate what

Answer 9

Point of origin and fire spread

Question 10

What are the two categories of vehicle fires

Answer 10

Driven or parked

Question 11

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

Answer 11

Mechanical, electrical, or smoking

Question 12

Where do you most mechanical fires results from

Answer 12

Engine compartment, brake assembly, or the exhaust system

Question 13

In general how do wildland fires spread

Answer 13

Away from the point of origin

Question 14

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

Answer 14

The heel

Question 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

Answer 15

Fire cause

Question 16

What are the four general fire classifications

Answer 16

Accidental, natural, incendiary, or undetermined

Question 17

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

Answer 17

Accidental fires

Question 18

What are a few causes of natural fires

Answer 18

Lightning strikes and earthquakes

Question 19

What classification of fire includes human activity that was intentional

Answer 19

Incendiary

Question 20

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

Answer 20

Undetermined fires

Question 21

Fire cause determination requires what three things

Answer 21

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

Question 22

What is a friendly fire

Answer 22

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

Question 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

Answer 23

Pyrophoric ignition

Question 24

What is the most common cause of electrical fires in structures

Answer 24

Miss use of the electrical system by building occupants

Question 25

What is an octopus

Answer 25

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

Question 26

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

Answer 26

What position the on off switch is in

Question 27

How do you earthquakes most often cause fires

Answer 27

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

Question 28

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

Answer 28

Cigarette/matches, candles, and alarm clocks

Question 29

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

Answer 29

Trailers

Question 30

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

Answer 30

Under the carpet or at the base of the walls

Question 31

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

Answer 31

Accelerants

Question 32

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

Answer 32

Inverted V patterns

Question 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

Answer 33

Hourglass

Question 34

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

Answer 34

Arson

Question 35

What are the four elements of Arson

Answer 35

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

Question 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

Answer 36

Malice

Question 37

What is the main objective of the post scene investigation

Answer 37

Determine the point of origin

Question 38

What are the three components to the fire tetrahedron

Answer 38

Heat, fuel, oxygen

Question 39

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

Answer 39

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

Question 40

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

Answer 40

Their Maranda rights

Question 41

What are the six Maranda rights

Answer 41

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

Question 42

What motive is the most common in arson cases

Answer 42

Revenge

Question 43

What is the target in revenge cases

Answer 43

Personal property

Question 44

Vandalism fires are generally set by how many people

Answer 44

Two or more

Question 45

What is the main target of vandalism fires

Answer 45

Schools

Question 46

Studies have shown that vandalism fires are set due to

Answer 46

Boredom and frustration

Question 47

What are the three types of crime fires

Answer 47

Burglary, homicide, and embezzlement

Question 48

What is the means of a fire

Answer 48

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

Question 49

What is the most common source of ignition for fires

Answer 49

Matches

Question 50

What are safety matches

Answer 50

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

Question 51

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

Answer 51

Fire marshal or inspector

Question 52

Children under the age of seven start fires due to

Answer 52

Curiosity or accidents

Question 53

Children ages 8 to 12 start fires due to

Answer 53

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

Question 54

What ages are considered the crisis age

Answer 54

13 to 18

Question 55

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

Answer 55

Pyromaniac

Question 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

Answer 56

Pyromania

Question 57

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

Answer 57

Structures

Question 58

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

Answer 58

921

Question 59

What is the fundamental element of arson

Answer 59

Fire

Question 60

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

Answer 60

If the electrical service was turned on