Test 1b

Question 1

What unsafe condition could result if you detonate explosives in a lab?

Answer 1

Structural damage

Question 2

What explosive is most commonly found in improvised detonators?

Answer 2

TATP

Question 3

What is added to acetone and hydrogen peroxide to make TATP?

Answer 3

Sulfuric Acid

Question 4

What makes up HMTD ?

Answer 4

Citric acid, hexamine, hydrogen peroxide

Question 5

An IED circuit consists of what?

Answer 5

Power source, conductor, initiator, switch

Question 6

What is the minimum wait for electrical cap misfire ?

Answer 6

30 min

Question 7

What’s the appropriate distance to place crimp on non-electric (time fuse) cap?

Answer 7

1/8”-1/4”

Question 8

When is it allowable to take a quick peak on a suspected package?

Answer 8

A quick peak is never the best course of action.

Question 9

What priority facilitates the evacuation of the public prior to attempting rsp?

Answer 9

Public safety

Question 10

When is it allowable to doff the bomb suit down range?

Answer 10

When the suit will not allow the dexterity needed to complete the task

Question 11

What are the makeup for black powder?

Answer 11

Potassium nitrate, sulfur, charcoal

Question 12

What makes anfo?

Answer 12

Ammonium nitrate, fuel oil

Question 13

How are caps wired for proper dual electric priming?

Answer 13

Two electric caps wired in parallel

Question 14

What is an airblast?

Answer 14

Shockwave or transient pressure pulse that propagates through the air at supersonic velocity

Question 15

What are secondary explosives?

Answer 15

Explosives that normally require initiation by detonation of initial primary explosive.

Question 16

What speed does hmx in shock tube detonate at?

Answer 16

6500 fps

Question 17

What do blasting agents need to be detonated?

Answer 17

A booster

Question 18

What explosive is generally safe when wet but as dangerous as ever when dry again?

Answer 18

Black powder

Question 19

What kind of explosive is PETN

Answer 19

Monomolecular

Question 20

What is a common explosive with an acetone as a precursor?

Answer 20

TATP (triacetonetriperoxide)

Question 21

What common source can Americium 241 be found in?

Answer 21

Smoke detector

Question 22

Who should bomb squads contact when encountering WMD threats?

Answer 22

FBI

Question 23

A build up of pressure which overcomes the strength of the container

Answer 23

Mechanical explosion

Question 24

Deflagration

Answer 24

Rapid combustion moving through an explosive material at a velocity lower than speed of sound

Question 25

High explosive

Answer 25

Explosive characterized by a very high rate of reaction

Question 26

High order detonation

Answer 26

Detonation which results in the consumption of all the explosives in the charge

Question 27

Who must be on scene when EOD arrives?

Answer 27

A Civil Safety or Law Enforcement Official

Question 28

What conclusion can you make about the color of military ordnance found in the wild?

Answer 28

Color code is not an adequate identification for ordnance outside military control

Question 29

What can’t bomb techs do during WMD Chemical Threat?

Answer 29

Cannot delegate bomb squad duties to Hazmat Teams

Question 30

What is an important aspect regarding biological threats ?

Answer 30

They are microscopic and their presence is not indicated by appearance

Question 31

What is average background radiation for an individual?

Answer 31

620mRem per year

Question 32

How are transistors used in IED’s?

Answer 32

As an Electronic switch

Question 33

How are AIR (active infrared) devices activated?

Answer 33

Interrupting the beam

Question 34

What kind of circuit involves a firing battery, receiver battery, antenna, servo, micro switch, and initiator?

Answer 34

Remote control circuit

Question 35

Define mechanical action fuze

Answer 35

Requires physical action or force for the mechanism to function

Question 36

Which manually actuated fuse is the most dangerous to a bomb tech?

Answer 36

Anti-disturbance

Question 37

What is a common safe arm for a circuit containing a trembler or vibratory switch?

Answer 37

Clock or timer

Question 38

A circuit draws 3A through 8 ohms, what’s the supplied volts

Answer 38

24

Question 39

Firing switches and arming switches in an IED circuit are normally wired how?

Answer 39

Series parallel

Question 40

What is required to make an IED circuit?

Answer 40

Power, conductor, switch, initiator

Question 41

What can cause a collapsing circuit to function?

Answer 41

Battery decay, cut wrong wire, disturbance

Question 42

When should you wear a bomb suit?

Answer 42

Every approach until all explosive hazards are dealt with

Question 43

If voltage remains constant and resistance is increased, what does current do?

Answer 43

Decreases

Question 44

What term defines current flow in a circuit?

Answer 44

Amperage

Question 45

What term is the measure of resistance?

Answer 45

Ohms

Question 46

Switches perform what purpose in a circuit?

Answer 46

Open or close a circuit

Question 47

A 12 volt circuit passes through 2 ohms of resistance, what’s the current?

Answer 47

6 amps

Question 48

What occurs when power button is pressed on the bomb suit arm controller?

Answer 48

Link is established with the helmet/controller and green light turns on