Bomb Explosion Investigation

8/18/2019 Bomb Explosion Investigation

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1.

Which type of explosive is classified into two groups, primary andsecondary?

Your Answer:medium explosives

Correct

Answer:

high explosives

2.

A 50% straight dynamite contains:

Your

Answer:

50 pecent of nitroglycerin.

3.

he oxidi!ing agent found in "lac# powder is:

Your

Answer:

potassium nitrate.

4.

$ow explosives decompose at rates that vary up to:

Your Answer:

,000 meters&hr.

CorrectAnswer:

,000 meters&sec.


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5.

'reation of a supersonic shoc# wave as a result of an explosion is referredto as:

Your

Answer:

detonation.

6.

(n recent years, dynamite has "een replaced commercially "y:

Your

Answer:

Ammonium nitrate)"ased explosives.

7.

he single most important step in the detection and analysis of explosive

residues is:

Your Answer:

locating the ignition source.

Correct

Answer:

the collection of appropriate samples from the explosionscene.

8.

After "om")scene de"ris has "een examined microscopically, the next stepis to:

Your Answer:

examine the explosive using spectrophotometry.

Correct

Answer:

rinse the recovered de"ris with acetone to separate thede"ris from explosive material.

9.

*)ray diffraction can only "e applied to:


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50 pecent of nitroglycerin.

5 percent of nitroglycerin.

+he o"i%i,in& $&ent !oun% in -l$c pow%er is:

sulfur.

charcoal.

nitrocellulose.

potassium nitrate.

/ow e"plosi#es %eco(pose $t r$tes th$t #$r up to:

,000 meters&sec.

,000 meters&hr.

,000 miles per hour.

/,000 miles&hr.

Cre$tion o! $ supersonic shoc w$#e $s $ result o! $n e"plosion is

re!erre% to $s:

deflagration.

flash over.

com"ustion.

detonation.


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n recent e$rs' %n$(ite h$s -een repl$ce% co((erci$ll -:

-itroglycerin.

Ammonium nitrate)"ased explosives.

1-.

A.

+he sin&le (ost i(port$nt step in the %etection $n% $n$lsis o!

e"plosi#e resi%ues is:

the creation of a chain of custody form.

locating the ignition source.

the determination of whether it is a low or a high explosive.

the collection of appropriate samples from the explosion scene.

A!ter -o(-scene %e-ris h$s -een e"$(ine% (icroscopic$ll' the ne"tstep is to:

rinse the recovered de"ris with acetone to separate the de"ris from explosivematerial.

view the detonating mechanism with a low)power stereoscopic.

examine the explosive using spectrophotometry.

utili!e x)ray diffraction to 2fingerprint3 the organic explosive.


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r$ %i!!r$ction c$n onl -e $pplie% to:

solid, crystalline materials.

li4uids.

gaseous or vapor materials.

all of the a"ove are appropriate for *)ray diffraction.

A co((on screen test !or the presu(pti#e i%enti!ic$tion o! $ne"plosi#e is:

as chromatography)mass spectrometry.

*)ray diffraction.

(+ spectrophotometry.

hin)layer chromatography.


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1.

6atch the term with the definition.

ption Your Answer: Correct Answer:

1.1

l$c ow%er -. A cord containing a core

of "lac# powder. (t is usedto carry a flame at auniform rate to an explosivecharge.

7. -ormally, a mixture of

potassium nitrate, car"on,and sulfur in the ratio/5&5&0.

1.2

e!l$&r$tion -. A cord containing a coreof "lac# powder. (t is usedto carry a flame at auniform rate to an explosivecharge.

6. A very rapid oxidationreaction accompanied "ythe generation of a low)intensity pressure wave thatcan disrupt thesurroundings.

1.3

eton$tin&Cor%

$. A su"stance that suppliesoxygen to a chemicalreaction.

. A cordli#e explosivecontaining a core of high)explosive material, usually

1-8 also calledprimacord.

1.4

eton$tion 9. An explosive consistingof nitrocellulose.

. An extremely rapidoxidation reaction

accompanied "y a violentdisruptive effect and anintense, high)speed shoc#wave.

1.5

"plosion $. A su"stance that suppliesoxygen to a chemicalreaction.

1. A chemical or mechanicalaction resulting in the rapidexpansion of gases.

1.6

i&h"plosi#e

;. An explosive with avelocity of detonation lessthan ,000 meters persecond. 1xamples include"lac# powder andsmo#eless powder.


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than ,000 meters persecond. 1xamples include"lac# powder andsmo#eless powder.

1.8

"i%i,in&A&ent

;. An explosive with avelocity of detonation less

than ,000 meters persecond. 1xamples include"lac# powder andsmo#eless powder.

$. A su"stance that suppliesoxygen to a chemical

reaction.

1.9

ri($r"plosi#e

. An extremely rapidoxidation reactionaccompanied "y a violentdisruptive effect and anintense, high)speed shoc#wave.

=. A high explosive that iseasily detonated "y heat orshoc#.

1.10

$!et use . An extremely rapidoxidation reaction


-. A cord containing a coreof "lac# powder. (t is used

to carry a flame at auniform rate to an explosivecharge.

1.11

econ%$r"plosi#e

A. An analytical techni4uefor identifying crystallinematerials.

(. A high explosive thatnormally must "e detonated"y a primary explosive.

1.12

(oelessow%er;ou-le$se<

A. An analytical techni4uefor identifying crystallinematerials.

'. An explosive consistingof a mixture ofnitrocellulose andnitroglycerin.

1.13(oelessow%er;in&le$se


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M$tchin&

This activity contains 1 question.

M$tch the ter( with the %e!inition.

A matching question presents 14 answer choices and 14 items. The answer choices are lettered A

through N. The items are numbered 1.1 through 1.14. Screen readers will read the answer choicesfirst. Then each item will be presented along with a select menu for choosing an answerchoice.sing the pull!down menus" match each item in the left column to the corresponding itemin the right column.

Ananalytical

techni4ueforidentifyingcrystallinematerials.

Anexplosivewith avelocity ofdetonationgreaterthan ,000meters persecond.1xamplesincludedynamiteand +=*.

Anexplosiveconsistingof amixture of nitrocellulose andnitroglycerin.

A highexplosive

that iseasilydetonated"y heat orshoc#.

A chemicalormechanical actionresulting

1.1 l$cow%er

1.2e!l$&r$t

ion

1.3eton$tin& Cor%

1.4eton$tio

n

1.5"plosion

1.6 i&h"plosi#e

1.7 /ow"plosi#e

1.8"i%i,in&

A&ent


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1.9

ri($r"plosi#e

1.10

$!etuse

1.11econ%$r

"plosi#e

1.12(oeless ow%er

;ou-le$se<

1.13(oeless ow%er

;in&le$se<

1.14 r$

%i!!r$ction

in therapidexpansionof gases.

-ormally,

a mixtureofpotassiumnitrate,

car"on,and sulfurin the ratio/5&5&0.

A cordli#eexplosivecontaininga core ofhigh)explosivematerial,

usually1-8 alsocalledprimacord.

Anexplosive

consistingofnitrocellulose.

A highexplosivethatnormally

must "edetonated

"y aprimaryexplosive.

Anexplosivewith a

velocity ofdetonationless than,000meters persecond.1xamples

include"lac#powderandsmo#elesspowder.

Anextremelyrapidoxidation


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-l$c pow%er -ormally, a mixture of potassium nitrate, car"on, and sulfur in the ratio /5&5&0.

%e!l$&r$tion A very rapid oxidation reaction accompanied "y the generation of a low)intensity

pressure wave that can disrupt the surroundings.

%eton$tin& cor% A cordli#e explosive containing a core of high)explosive material, usually 1-8

also called primacord.

%eton$tion An extremely rapid oxidation reaction accompanied "y a violent disruptive effect and an

intense, high)speed shoc# wave.

e"plosion A chemical or mechanical action caused "y com"ustion, accompanied "y creation of heat

and rapid expansion of gases.

hi&h e"plosi#e An explosive with a velocity of detonation greater than ,000 meters per second.

low e"plosi#e An explosive with a velocity of detonation less than ,000 meters per second.

o"i%i,in& $&ent A su"stance that supplies oxygen to a chemical reaction.

pri($r e"plosi#e A high explosive that is easily detonated "y heat, shoc#, or friction.

s$!et !use A cord containing a core of "lac# powder, used to carry a flame at a uniform rate to an

explosive charge.

secon%$r e"plosi#e A high explosive that is relatively insensitive to heat, shoc#, or friction.

s(oeless pow%er ;%ou-le-$se

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Bomb Explosion Investigation