eor first test Flashcards
what Does CMD stand for?
Conventional munition Disposal
what Does ECM stand for?
Electronic counter measures
what Does EOR stand for?
Explosive Ordanance Reconnaissance
What does IED stand for?
Improvised Explosive device
What does SED stand for?
Specialist explosive device
What does UXO stand for?
Unexploded explosive ordanance
What does EODCC stand for?
Explosive ordanance disposal command center
what does EOC stand for?
explosive ordanace clearance
What additional assets (without disposal capability) may be used to assist EOD personal to perform there function more efficiently?
- EDD
- HRS teams
- ECM
- WIT
What are 4 options EOD commanders have available for dealing with UXO’S?
- note
- avoid the threat
- RSP EO
- destroy it
What are the four types of fills used in explosives?
cast, powdered, pressed, blocked
what are PRIMARY HIGH EXPLOSIVES?
Disruptive initiators are primary high explosives which can be brought almost instantaneously to a full rate of
detonation by a small impulse caused by impact, friction or heat, due to their low Figure of Insensitivity. They are
commonly referred to as detonators
what are the two types of shape charge effects called and what is the difference?
munroe effect = is a liquid formed jet formed from a soft metal placed in a cone shape in front of a main charge.
Misnay–Schardin Effect = is an explosive formed projectile formed from a concave disk backed by high explosives.
In any EOD incident, the EOD team must balance the hazards posed by the explosive threat with the
consequences of delaying any render safe actions. In a typical situation, the priority of considerations is as follows:
a. Safety of the EOD team and support personnel;
b. Safety of bystanders and local occupants;
c. Safety of vital facilities and materials;
d. Safety of other facilities and equipment;
e. Restoration of operations; and
f. Restoration of domestic or non-urgent support activities.
what are the Four EOD option categories and explain?
The EOD incident categories are:
a. Category A. This category is assigned to EOD incidents that constitute a grave and immediate
threat. Category A incidents are given priority over all other incidents and disposal operations are to be
started immediately the EOD assets arrive, regardless of personal risk. This category is normally
assigned to incidents capable of causing mass destruction, widespread contamination, a major
reduction of combat personnel or loss of critical installations and facilities.
b. Category B. This category is assigned to EOD incidents that constitute an indirect threat. Before
commencing EOD, a safe waiting period may be observed to reduce the hazard to EOD personnel.
This category includes items of technical intelligence value such as items of ordnance never before
encountered.
c. Category C. This category is assigned to EOD incidents that constitute little threat. These incidents
will normally be dealt with by EOD personnel after Category A and B incidents and in such a manner
as to ensure a minimum risk to personnel. This category is used for the majority of EOD incidents.
d. Category D. This category is assigned to EOD incidents that constitute no threat at the present
what are the Four EOD option incident categories and explain?
The EOD incident categories are:
a. Category A. This category is assigned to EOD incidents that constitute a grave and immediate
threat. Category A incidents are given priority over all other incidents and disposal operations are to be
started immediately the EOD assets arrive, regardless of personal risk. This category is normally
assigned to incidents capable of causing mass destruction, widespread contamination, a major
reduction of combat personnel or loss of critical installations and facilities.
b. Category B. This category is assigned to EOD incidents that constitute an indirect threat. Before
commencing EOD, a safe waiting period may be observed to reduce the hazard to EOD personnel.
This category includes items of technical intelligence value such as items of ordnance never before
encountered.
c. Category C. This category is assigned to EOD incidents that constitute little threat. These incidents
will normally be dealt with by EOD personnel after Category A and B incidents and in such a manner
as to ensure a minimum risk to personnel. This category is used for the majority of EOD incidents.
d. Category D. This category is assigned to EOD incidents that constitute no threat at the present
An EOD asset will undertake five types of EOD procedures:
Access Procedures. These are actions to confirm the reported location of the EO or IED and to
gain access to it, where required, with assistance from high risk search (HRS) teams.
Diagnostic Procedures. These are actions to confirm the identity and nature of the UXO or IED
and to evaluate related risks and effects.
Render Safe Procedures. These procedures involve application of specialist disposal methods
and tools to provide for the interruption of functions or separation of essential components of UXO and
IED to prevent an unacceptable functioning of the item as intended. Recovery Procedures. These procedures are actions to recover UXO or IED components for
disposal, further investigation, EOD intelligence or for use as a training aid. Final Disposal Procedures. These procedures cover final disposal of UXO or IED components, which may include demolition or burning in place, removal to a disposal area or other appropriate means of disposal.
What is VOD
Velocity of Detonation
26. The passage of the initiating shock wave through explosive material causes a release of energy through the
breakdown of the molecules of the explosive. If the amount of energy released is sufficient to overcome any loss of
energy due to friction or resistance to motion, then the shock wave will continue through the material indefinitely at a
constant speed. This critical velocity is known as the Velocity of Detonation (VoD) of the explosive.
What is VOD
Velocity of Detonation
The passage of the initiating shock wave through explosive material causes a release of energy through the breakdown of the molecules of the explosive. If the amount of energy released is sufficient to overcome any loss of energy due to friction or resistance to motion, then the shock wave will continue through the material indefinitely at a constant speed. This critical velocity is known as the Velocity of Detonation (VoD) of the explosive.
How is VOD measured.
measured from the speed in which the explosive changes from solid or liquid to gas. or from the speed the shockwave travels threw the EO material
what are the Categories of Detonation
high order, low order partial detonation
what are the classifications of explosives
low explosive - items required to burn or deflegrate
high explosives - items required to detonate
what Other Factors Affecting Sensitivity and VOD
a. Size of the explosive crystals4;
b. Explosive density (pressed, powdered, blocked or cast filling);
c. Presence or extent of coating (wax or plasticiser);
d. Confinement of the explosive container;
e. Environmental temperature; and
f. Moisture absorbed by the explosive.
what are the two types of eo trains
Igniferous train. Mortar propelling charge:
(1) Initiator: Percussion cap in base of spigot struck by firing pin in base of tube;
(2) Intermediary or ignition charge; and
(3) Main charge: Propellant bags.
b. Disruptive train. Mortar with PD fuze:
(1) Initiator: firing pin in fuze;
(2) Detonator;
(3) Booster: 20g of CE in fuze well; and
(4) Main charge: 500 g of RDX/TNT mix.
