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EOR test 3 > Definitions > Flashcards

Definitions Flashcards

1
Q

What does BODR mean

A

The overpressure above the ambient pressure in a blast wave at a given distance. Blast overpressure distance range

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2
Q

What does HFDR mean

A

the minimum withdrawal distance for protection from hazardous primary and secondary frag. hazardous frag distance range

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3
Q

what does MFDR mean

A

the range to which primary and secondary frag from the PES are not expected to travel beyond.

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4
Q

Primary Frag

A

frag that is in direst contact with an explosive fill

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5
Q

Secondary frag

A

frag picked up by primary frag and the blast

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6
Q

what is a camouflet

A

An underground cavity formed when EO penetrates the earth to a depth where the explosion is small enough not to penetrate the surface

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7
Q

what are the 3 types of camouflet

A

deep
shallow
collapsed

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8
Q

6 methods of protective works

A 
trenching
venting
buttressing
walls
surrounds
mounding
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9
Q

3 methods against earth shock

A

trenching
venting
buttressing

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10
Q

trenching must be to at least 300mm below the installation to be protected

A

FALSE

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11
Q

2 types of landmines

A

AT

AP

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12
Q

how deep must a bomb be to be considered buried

A

2 to 2 and a half times its length

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13
Q

2 conditions must be satisfied before trenching can be used as a means of protection against earth shock

A

trench to be located outside the expected crated area

trench to be located within the radius for earth shock damage from the explosion

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14
Q

4 phases of BT clearence

A

Recon
Entry
Search
Clearence

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15
Q

Anti vehicle BT are operated by a switch with a approx EO content of 0.25g

A

FALSE

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16
Q

4 methods of operation for the F1A1 BT

A

pressure
pull
pressure release
tension release

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17
Q

4 types of incident that an EOR may be sent to recce

A 
explosion
camouflet
UXO - surface and buried
false reports
hoax
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18
Q

When a BT has been disturbed by remote means, what is the soak time

A

20 mins

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19
Q

difference between a deep and shallow camouflet

A

deep - may have no evidence on surface, possibly a blackened entry hole and the sound/smellof gasses being vented

shallow - upward heave of the surface and cracks on the surface

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20
Q

4 options available during BT clearence phase

A

pull with hook and line
destroy in situ
disrupt
neutralise and disarm

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21
Q

venting as a means of protective works is most ideal when blast and frag are a threat

A

FALSE

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22
Q

5 methods of BT operation

A 
pull
pressure
pressure release
tension release
delay
23
Q

if a BT is to be deliberated initiated, its full extent must be known before any action

A

TRUE

24
Q

the minimum distance essential personnal can evacuate to is 50m

A

FALSE

25
Q

shear pin and electrial contact are 2 principles of operation for a BT. name more (4 others)

A 
ballcontrol
pin or plate withdrawal
chemical electrical reaction
chemical reaction
friction inertia
26
Q

ADF IEDD doctrine - 4 ideas

A

philosophy
aim of IEDD
principls
mandatory actions

27
Q

IEDD philosophy

A

save life
return to normality
preserve and collect evidence
preserve property

28
Q

IEDD principles

A 
where possible, use remote means. Manual Render safe is a last resort
mandatory soak times observed
operations pre planned
catagorise tasks
minimum time over target
RSP by disruption is primary option
revert to remote means whenever possible
29
Q

other agencies Involved in IEDD operations

A 
Int cell
Ops staff
PR officer
Engineer search
aviation imagery assets
dogs
helicopters
30
Q

Components of an IED

A 
switch
power source
initator
main charge
container
31
Q

6 considerations when taking into account protective works

A 
type and size of UXO
position of uxo
soil composition
screening or funnelling effects
safety distances
whether structure is outside the crater area
32
Q

what are indications of an explosion

A 
witness reports of sound of detonation, smoke, or flash
residual smell or black deposits
widespread breakage of windows
presence of primary frag
craters
evidence of earth shock
cracking of the ground
33
Q

2 types of IED switch

A

arming

firing

34
Q

3 types of firing switch

A

command
time
VO

35
Q

3 types of arming switch

A

command time VO

36
Q

2 types of initiators

A

elec, non elec

military
conventional
improvised

37
Q

2 types of command system IEDs

A

linked

seperated

38
Q

types of linked systems

A

command wire
command pull
explosive link
projectile command

39
Q

types of seperated systems

A

radio control
light command
projectile command

40
Q

4 parts of a mine

A

firing mechanism to set of detonator or igniter charge
detonator or igniter to set off booster charge
booster charge attached to fuse/igniter or part of the main charge
main charge in a container, usually forms the body of the mine

41
Q

4 ways mines are actuated

A

pressure
pressure release
tension
tension release

42
Q

types of spring operated igniters

A 
pin plate or ball
diaphgram
shear pin
electric contact
chemical control
chemical reaction
friction
double pressure
anti handling device
43
Q

types of AP mines

A

blast
frag
bounding
directional bounding

44
Q

types of AT mines

A

blast

shaped charge

45
Q

definition of booby trap

A

explosive or non explosive dvice or other material delibertely placed to cause casualties when an apparently harmless object is disturbed or normally safe act is performedz

46
Q

3 criteria of a booby trap

A

contains military ordnance or devices only
military ordnance or devices may only be incorporated to function as designed only
must not incorporate or have working in conjunction with a secondary explosive device

47
Q

tactical effects of BTs

A

create a sense of uncertainty or fear
lower morale
to engender a sense of caution and fear causing frustration

48
Q

2 catagories of BT’s

A

VO,

delaed action

49
Q

5 methods of operation of BT’s

A 
pull
pressure
pressure release
tension release
delay
50
Q

3 uses of BT’s

A

in the offense,
defence,
and withdrawal

51
Q

building clearence safety precautions

A

avoid fatigue
door and windows not opened till both sides checked
obstacless and furniture pulled remotely
all items found clear must be marked and left in accesible position
all safe routes clearly marked
torches not used unless light sensitive devices discounted
remainder of team in ICP while operator conducts positive action

52
Q

what are procedures around manual disarm

A

check complete system for alternative means of firing
all wires traced to both ends
if possible, cut the link between switch and main charge
when delay encountered, anti handling may be present

53
Q

definition of IED

A

devices placed or fabricated in an improvised manner, that incorporate destructive, lethal noxious, pyrotechnic or incendiary chemicals designed to destroy disfigure incapacitate harrass or distract. may incorporate mil stores, but usually non mil

54
Q

4 types of craters

A

A, B and C,
splash
A on or near surface
B and C - penetration prior to detonation, C has collapsed sides,
Splash - large UXO hitting surface and dislodging debris before penetration

EOR test 3 (1 decks)

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