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1
Q

Chem filler groups

CHEMICAL FILLER GROUP A

A

Highly toxic liquid agents

-nerve, mustard,lewisite

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2
Q

Wait time for burn pad between uses?

A

2hrs if wet
4 hours of not wet
24 hours of black powder

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3
Q

Wait time before returning to a burn pad after use?

A

30 minutes

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4
Q

Hero safe
Susceptible
Unsafe

A

Safe- immune to effects of EMR

susceptible- ordnance contains electrically initiated devices that are adversely affect d by radio energy

Unsafe- item with explosive potential is unsafe when internal wiring is exposed; additionally electrical connections have been made; EEDS with exposed leads.

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5
Q

Caps inside mk663 are considered?

A

1.1B to 1.4S

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6
Q

What do green yellow and red lights mean on the mk 67?

A

Green -on
Yellow- unarmed
Red- armed

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7
Q

Do boxes of small arms ammunition need to be marked IAW 49 CFR ? Placarded?

A

No, ordnance assigned to 1.4S (cartridges for small arms, primers) are exempt from labeling and placarding

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8
Q

Hazard conditions and placards

A

1- octagon
2- cross
3-upside down triangle
4- diamond

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9
Q

Trenching

Buttressing

Venting

A

Trenching- 24 in below foundation as close to building as possible. 18in wide

Buttressing- ground to ceiling, 10ft out with taper at top ranging from 4-5ft. Sandbags interlock. Can use 4x4s

Venting - channel above for venting

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10
Q

DODIC

NALC

NSN

A

Dept of defense ID code

Naval ammunition and logistics code

National stock number

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11
Q

Where should emergency triangles be placed? How many should be carried?

A

100’ in front and behind; at the traffic side no more than 10’ from rear or front

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12
Q

What placards are required and where?

A

Highest classification and on all four sides

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13
Q

How old do you have to be to drive explosives?

A

18 on base 21 off base.

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14
Q

Max time explosive driver can drive?

A

8 hours unless in an emergency

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15
Q

What distances must drivers stop for railroad crossings?

A

300’ flashers and slow down
Complete stop at 15-50’
Look then cross
Convoys no less than 50’ no longer than 300’ apart

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16
Q

TNT
M112
M5A1

A

TNT- 1/4, 1/2, 1lb

M112- 1.25lb

M5A1- 2.5lbs

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17
Q

Det cord misfire wait time

A

30min

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18
Q

Mk 186 mod 2 wait time

A

1 hour for capacitors to bleed down

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19
Q

Shock tube misfire wait time

A

30min

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20
Q

Non electric misfire w/t

A

60 min

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21
Q

Electric misfire w/t

A

30 min

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22
Q

Can you intermix insensitive exp and non insensitive?

A

No will cause kick outs

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23
Q

Galvo battery?

A

Silver chloride dry cell

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24
Q

Cap build up area distance from explosives

A

50feet

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25
Q

Min distance between caps and explosives

A

25feet

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26
Q

Training range for IBD for water tools

A

MWB - 125ft (max new 24.5g)

HYDRAJET-200ft (max new 900g)

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27
Q

What can you dispose of by detonation?

A 
Detonators
Dynamite in bulk
Explosive loaded grenades 
Group C Chem (wp/pwp)
HE bombs, mortars, projos 
Rockets/missiles warheads
Mines
Bulk initiating explosives
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28
Q

Tensile strength of det cord?

A

50 grains/ft= plioform wrapped = 160lbs

50grains/ft=wire bound 220lbs

100/200grain/ft = 210lbs

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29
Q

Water mitigation

A

Plastic 5 gallon car boys

Wading pool 7.5x22in deep

1100 gallon tank

Pit is dug 4x diameter of munition or 1 ft minimum

NEW limit is 15.5 pounds

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30
Q

QDR for tunnel or cave

A

1800ft with 1 degree buffer on each side

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31
Q

K factors

A

K-625 fly rock
K328- non-essential personnel
K50- essential personnel (eod cp)
K40-50- inhabited building distance
K24- down range/p2 distance indoor breaching (2.3 psi-1% chance of ear drum rupture)
K18- unbarricaded exp, breaching, 5%chance of ear drum rupture
K9- barricaded explosives/barricaded intraline distance
K3.5- CCT in caves

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32
Q

Definition of high and low explosives

A

High- det velocity occurs more than speed of sounds

Low- det velocity less than speed of sound

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33
Q

HFDR-

A

1% chance being struck with hazardous drag (756ft/lbs) 1 piece / 600ft2

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34
Q

Max grenades disposed of at one time?

A

20x hand grenades
50- 40mm
100 caps

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35
Q

Distance Bombs awaiting detonation/objects awaiting burn?

A

Small piles 100’ apart at least 500’ from the pit

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36
Q

Detonations not to occur with in ____ or loaded/discharged at _______?

A

60 minutes or at night.

CO can approve night loading.

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37
Q

What is a cluster? What is a nest?

A

Cluster is 3 incendiary grenades taped together

Nest- 2 or more clusters

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38
Q

Amount of explosives surrounding cap or knot?

A

1/2” on the sides

1” on the tip

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39
Q

Electric misfire

A 
3 times
Check continuity
3 more times
Check connection to blasting machine
3 more 
Change blasting machine
3 more
Shunt and wait 30 min
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40
Q

Shock tube misfire

A 
Multiple attempts to fire 
Cut 3 feet off
Replace igniter 
Multiple attempts to fire 
Nothing? Wait 30 min
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41
Q

M81 misfire

A

Recock rotate 90degrees pull 3 times
Leave or replace igniter

Wait 60 min

Countercharge

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42
Q

Where to crimp a cap

A

1/8-1/4 from base

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43
Q

How should you deal with buried misfire charge ?

A

Uncover only enough to countercharge or dig into buried charge and prime into det cord

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44
Q

What do you do with scattered HE? Fuze/components?

A

Collect HE

Blow components and fuzing in place

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45
Q

Minimum distance for testing electric caps?

A

50ft downwind of explosives

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46
Q

Can you bury caps?

Sensitized det cord?

A

No use det cord to keep caps above ground

Can’t bury sensitized det cord

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47
Q

Military caps are equivalent to what civilian/commercial caps?

A

M6=NO. 8

M7= NO. 12

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48
Q

Water mitigation

A

Plastic 5 gallon car boys/ wading pool

7.5ftX 22in deep

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49
Q

How long is m1 dynamite good for underwater

A

24 hours

50
Q

Order of precedence between OP5, SWO 60, and 1-1-31

A

Op-5, swo60, 1-1-31

51
Q

What are the range classifications?

A

Class A 500-3000lbs-IBD 5000’
Class B 150-300lbs IBD 3000’
Class C 25-150lbs IBD 2500’
Class D 0-25 lbs IBD 2500’

Can be reduced to 0-5 lbs

Det Yorktown is C but self impose limit to 25lbs.

52
Q

Fire fighter response time to burn site?

A

With in 5 minutes

53
Q

M60T2

M81

A

M81 can be used to initiate shock tube

54
Q

Surface burn pad set up

A

300x300ft pad cleared of combustibles (only sand and dirt)
Surrounded by 200x200ft border free of all vegatation and combustibles
Burn sites 50 ft apart
No more than 10degree gard

55
Q

Demo ranges clear of combustibles out to

A

500ft

56
Q

Electrical storm distance?

A

10 miles

57
Q

Only non sparking tools or clean knife to be used within

A

15 ft

58
Q

Current need to fire m6 electric cap

A

Series- 1.5 amps no matter how many caps

Parallel .6 amps per cap

59
Q

Resistance of m6 cap

A

2ohms

60
Q

M700 time fuse

A

36-44 sec burn rate

1 tic = 18in

61
Q

Max speed for exp vehicle

A

55mph

62
Q

RCRA

A

Resource conservation and recovery act

63
Q

NCEA

A

Non combat expenditure allowance

64
Q

Minimum depth for dumping at sea

A

Op 4 says 50 fathoms or 300ft

65
Q

Priming a thermite

A

Standard- tape cap 1” from top business end up

Modified- remove fuze
Puncture tape
Scrape first mixture
Pour smokeless powder in or split time fuze

66
Q

Mach stem effect

A

Intersecting waves form more powerful third wave

67
Q

Classification code for caps

A

1.4B

68
Q

Classification code for c-4 block

A

1.1D

69
Q

Classification code for time fuse

A

1.4 S

70
Q

of personnel to investigate misfires

A

2 personnel

71
Q

Shelter needed for burn?

A

Yes

Barricaded 100’ away
Unbarricaded 500’ away

72
Q

Explosive mishap publication

A

Opnavinst 5102.1

73
Q

What size separates small arms from projectiles

A

30mm

74
Q

Explosives of m6 or m7 cap

A

Base charge - rdx or petn

Intermediate charge - lead azide

Ignition charge - smokeless powder, potassium chlorite, lead styphnate, or barium chromate

75
Q

Hero safe caps

A

Mk 11 mod 0

Mk 17 mod 0

76
Q

CHEMICAL group D

A

Incendiary, anti material compounds

Triethyalimin in fire rockets

77
Q

CHEMICAL group B

A

Riot control

Smoke screening agents

(Cs, smoke)

78
Q

Low explosives

A

Pyrotechnics

Propellants

Black powder

79
Q

Deflagrate

A

CHEMICAL decomposition is less than speed of sound, creates great amount of heat, gas, and light burn it detonation

80
Q

Detonate

A

CHEMICAL decomposition at a rate greater than the speed of sounds which causes an explosion

81
Q

What weather/atmospheric conditions prohibit disposal by detonation?

A

Periods of heav, low total overcast or during electrical storms. OP5

electrical dust san or snow storms are nearby (APPROX 5 miles) SWO 60

82
Q

Minimum wait time after detonations

A

5 minutes if all shots were counted

83
Q

Can rocket warheads and motors be disposed of simultaneously as one unit?

A

Where ever practical, separate the rocket motor fro the HE head and treat the head as a projectile. Is separation is impractical, short range rockets may be treated in a pit.

84
Q

What is the preferred method of disposal dynamite ?

A

Burning is the preferred method for the destruction of explosives which can be safely burned.

However, some instance deteriorate dynamite is authorized for burning in a boxed condition.

85
Q

What is the suggested method of disposing of cases of dynamite by detonation?

A

A primed cartridge of dynamite can be use to initiate detonation of boxes dynamite. The primed cart should be placed well in the center of a new bow of dynamite of unquestioned quality, and this box placed in close contact among the boxes of dynamite to be destroyed.

86
Q

What is the max number of group C chemical rounds (wp/pwp) that may be disposed of by detonation at one time?

A

Group C chemical munitions or components should be destroyed one round or item at a time ( OBSOLETE) currently there are no restrictions.

87
Q

May thermites be used in cold weather?

A

Be aware that incendiary grenades that are frozen may detonate upon initiation. Let thaw for 2-5 days at rom temperature

88
Q

As a general rule what types of explosives are good for EOD work?

A

Explosives itch a high velocity and Brisance are best for most EOD applications. Explosives with a lower velocity of detonation are best for cratering , ditching and quarrying.

89
Q

How is time fuse affected underwater?

A

Rate of burning is increased significantly. Therefore it is not recommended that time blasting Gus not be used underwater

90
Q

Test burn distance away from explosives?

A

50ft downwind from any explosives

91
Q

Under normal conditions what is the minimum length of time fuse used to initiate a charge?

A

Minimum of 6 feet

92
Q

When can you bypass a wait time

A

Emergency situations

Combat necessitates

When you can visually see a break in the circuit

93
Q

What is the det cord we most commonly us?

A

Pliofilm reinforced

94
Q

Can you use .50 cal carts in a series circuit with different color leads?

A

Use only carts with same color leads

95
Q

When compared to #8 commercial cap how much more powerful is a military cap

A

Twice as powerful

96
Q

What is the main advantage of using det cord in a firing system?

A

Can set up buried or u/w charge

97
Q

Resistance and amperage necessary to fire a military cap

A

2ohms, and 1.5 Amps in series, .6 amps per cap in parallel

98
Q

Resistance of 1000ft of 16 awg firing wire?

A

4 ohms

99
Q

What is in shock tube?

A

.1 grains/ft HMX/a1

100
Q

What is the w/t for the mk 67

A

30 minutes

101
Q

What are the sizes of det cord

A

25 gpf, 42, 100, 200gpf

102
Q

What depth can you dive sensitized det cord to if prepared properly

A

300 feet

103
Q

How are underwater shots utilizing det cord prepared

A

Det cord is to be initiated with two waterproofed caps and fuse firing systems or two det cord initiators. Free ends of det cord will be waterproofed and tape used shall be coated with a sealer

104
Q

4 methods of connecting det cord

A

Girth hitch, square knot, tape, m1 clip, blue devils, wire, etc

105
Q

Three authorized methods of disposal

A

Burning, detonation, static firing

106
Q

Ohms law

A

Voltage= current x resistance

107
Q

W/t for a grenade?

A

30 minutes

108
Q

All burning operations will be complete a minimum of ____ minutes before personnel leave.

A

30 minutes

109
Q

What types ammunition are authorized for disposal by burning?

A

Black powder
Certain group B chemical agents and ammunition
Limited quantities of dynamite in bulk
Floating smoke pots (HC-filled) or similar ammunition
Bulk HE
Group C and D chemical ammunition and munitions
Bulk HE
Nitrocellulose
Primers
Pyrotechnics
Small arms
Smokeless powder
TNT blocks
Tracer mix and other pyrotechnic mixtures
Rocket motor propellant grains

110
Q

Minimum distance that a burn pad should be located from any other structures or roads

A

Non ammunition related ops shall be provided k 40 with 1250 foot minimum or reduced distance for NEWs less than 450pounds

111
Q

Is a personnel protection area required at the burn site?

A

Yes if protected by barricade then 100 feet away if not then 500 ft away

112
Q

How long must you wait after a burn has visually exhausted itself before inspecting it?

A

5 minutes

113
Q

What personnel protective measure must be taken when preparing dynamite for burning out of the box.

A

Use gloves and provide some ability to shower off in case of contact with smoke or fumes

114
Q

How long of a cool down period is required before cleaning a trench where pyrotechnics were burned?

A

36 hours or 18 hours if cooled by water

115
Q

How to you burn dynamite

A

Single layer not wider in width that length of one stick

116
Q

Rocket motors greater than ___ in diameter should be treated in accordance with instructions contained in tech manuals applicable to weapons.

A

8 in

117
Q

Three methods of disposal by nuetralzation

A

Dissolution in water
Chemical
Venting

118
Q

Electrical storm distance?

A

10 miles OP5

119
Q

Sand dust and snowstorm within ____ miles a hazard?

A

5 miles, produces static electrical charge

120
Q

Describe handling precautions for phosphorous residue such as found in spotting charges on spent BDUs on the Fallon ranges

A

Do not crush or break crusted phosphorous residue as it may ignite.

121
Q

Munro effect

A

Effect produce by shape charge

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