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arson/bomb investigation > Midterm > Flashcards

Midterm Flashcards

(59 cards)

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1
Q

types of fire investigators

A

public and private

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2
Q

NFPA

A

National Fire Protection Association

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3
Q

NFPA standard are qualification of fire and explosives investigator

A

1033

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4
Q

NFPA standard is guide for fire and explosive investigators

A

921

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5
Q

oldest known explosive

A

black powder

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6
Q

Black Powder

A

low explosive

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7
Q

JPR

A

job performance requirements

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8
Q

Scientific Method

A

pursuit of knowledge involving the recognition and definition of a problem
- hypothesis
- need for research
- define problem
- analyze data
- conduct research
- test hypothesis

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9
Q

explosions are always accompanied by violent increase in heat, overpressure, and an extremely loud noise

A

true

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10
Q

smallest grain of black powder

A

FFFF

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11
Q

What is the main explosive in modern day ammunition

A

smokeless powder

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12
Q

first step in explosive train

A

initiation

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13
Q

What is the primary use of ANFO

A

blasting

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14
Q

primary block detonation charge used by US military

A

C4

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15
Q

when do binary explosives become cap-sensitive (ready to detonate)

A

after mixing

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16
Q

there are 16 topics which a fire and explosives investigator should have an up-to-date basic knowledge of

A

true

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17
Q

which of the following is not a part of the scientific method

A

publish your report

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18
Q

which of the following is not published by the NFPA

A

law

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19
Q

what are the effects of an explosion

A

blast pressure, incendiary/thermal, fragmentation

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20
Q

what is deflagration

A

rapid exothermic burning reaction

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21
Q

what is a high order detonation

A

complete consumption of an explosive at its optimum velocity

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22
Q

2 examples of low explosives

A

black powder, smokeless powder

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23
Q

lowest temperature to produce flammable vapor

A

flash point

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24
Q

study of temperature

25
3 classifications of fire investigation causes
accidental, incendiary, undetermined
26
transition from a fire in a room to a room on fire called
flashover
27
required to be investigator
18, high school diploma, background check
28
required for fire
fuel, oxidizing agent, heat, chemical chain reaction
29
most common type of fuel for fire
organic fuels
30
role of oxygen in combustion
required for combustion
31
boiling water transfers heat via
convection
32
types of review in fire investigation
administrative, technical, peer
33
2 people who conduct fire investigations
employed by police or fire department
34
why do we conduct fire investigation
evaluate facts, determine origin and cause
35
purpose of NFPA 1033
standard for professional qualifications
36
purpose of NFPA 921
guide for fire and explosion investigators
37
every fire scene is considered until proven otherwise
possible crime scene
38
IAAI stands for
International association of arson investigators
39
fire tetrahedron
fuel, oxygen, heat, chemical chain reaction
40
Heat is measured in
BTUs
41
black powdery or flaky substance continuing carbon
soot
42
3 ways of heat transfer
conduction, convection, radiation
43
heat form the sun is
radiation
44
which of the following is not a basic type of explosion
radiation
45
low explosives...
deflagrate
46
high explosives...
detonate
47
air is compromised of what % of oxygen
21%
48
military explosives relative effectiveness are compared to
TNT
49
commercial explosives relative effectiveness are compared to
ANFO
50
example of high explosive
dynamite
51
common fireworks are
pyrotechnics
52
powder that can get wet, dry out, and be used again
black powder
53
explosive that supplies its own oxygen
oxidizers
54
not 1 of 3 categories of high explosives
ANFO
55
class of explosives sensitive to heat, shock, friction
low explosives
56
sunburn would be an example of
radiation
57
heat transfer/burn from direct contact would be
conduction
58
which blast pressure phase of an explosive lasts longer
negative phase
59
most damage during explosion is during
positive phase

arson/bomb investigation (2 decks)

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