CITP TEST 5; THE LAST ONE!
QUESTIONS AND ANSWERS WITH
VERIFIED SOLUTIONS 2024
What are the effects of an explosion? - ANSWER Thermal Effect
Blast Pressure Effect
Fragmentation Effect
T/F: Thermal effecs are generally the most damaging of the three primary effects? - ANSWER False;
Fragmentation is usually the most damaging.
What is important to know about thermal effect high explosives? - ANSWER They produce higher
temperature thermal effects but for a shorter duration.
What is important to know about thermal effect low explosives? - ANSWER They produce lower
temperature thermal effects but for a longer duration.
What is the blast pressure effect? - ANSWER When very hot gases are formed in approximately 1/10,000
of a second expand out from the point of detonation at supersonic velocities, up to 20,000 mph.
What are the two distinct phases of the blast pressure effect? - ANSWER The Positive Phase and Negative
Phase.
T/F: The negative phase is typically three times longer than the positive phase but less intense. -
ANSWER True.
The four types of injuries sustained during a blast are: - ANSWER Primary Blast Injury: Direct effects of
blast upon the body
Secondary Blast Injury: Propelled fragmentation
Tertiary Blast Injury: Casualty's body is propelled against a stationary object
, Qauternary Blast Injury: Being crushed or burns.
___________ blast injury is the most common cause of death in explosions. - ANSWER Secondary Blast
Injury (Fragmentation)
IED's may have precut/preformed objects (ie ball bearings, hexagonal nuts, nails, etc) placed within or
along the device to serve what purpose? - ANSWER To form fragmentation when the IED detonates.
What is primary fragmentation? - ANSWER Fragments produced by the IED or explosive container.
What is secondary fragmentation? - ANSWER Object propelled from around the detonation point, and
fractured pieces of the intended target that become lethal missiles.
IED's generally consist of what four components? - ANSWER Power source
Initiator
Explosive
Switch
(PIES)
Also may be a fifth - the container.
Examples of power source for an IED? - ANSWER Batteries (electric)
Coiled Spring(mechanical)
Flame(Heat).
Examples of initiators for an IED? - ANSWER Blasting Caps
Spark Plug
Photographic Flash Bulb
Automobile Light Bulb
Trick Birthday Candles
QUESTIONS AND ANSWERS WITH
VERIFIED SOLUTIONS 2024
What are the effects of an explosion? - ANSWER Thermal Effect
Blast Pressure Effect
Fragmentation Effect
T/F: Thermal effecs are generally the most damaging of the three primary effects? - ANSWER False;
Fragmentation is usually the most damaging.
What is important to know about thermal effect high explosives? - ANSWER They produce higher
temperature thermal effects but for a shorter duration.
What is important to know about thermal effect low explosives? - ANSWER They produce lower
temperature thermal effects but for a longer duration.
What is the blast pressure effect? - ANSWER When very hot gases are formed in approximately 1/10,000
of a second expand out from the point of detonation at supersonic velocities, up to 20,000 mph.
What are the two distinct phases of the blast pressure effect? - ANSWER The Positive Phase and Negative
Phase.
T/F: The negative phase is typically three times longer than the positive phase but less intense. -
ANSWER True.
The four types of injuries sustained during a blast are: - ANSWER Primary Blast Injury: Direct effects of
blast upon the body
Secondary Blast Injury: Propelled fragmentation
Tertiary Blast Injury: Casualty's body is propelled against a stationary object
, Qauternary Blast Injury: Being crushed or burns.
___________ blast injury is the most common cause of death in explosions. - ANSWER Secondary Blast
Injury (Fragmentation)
IED's may have precut/preformed objects (ie ball bearings, hexagonal nuts, nails, etc) placed within or
along the device to serve what purpose? - ANSWER To form fragmentation when the IED detonates.
What is primary fragmentation? - ANSWER Fragments produced by the IED or explosive container.
What is secondary fragmentation? - ANSWER Object propelled from around the detonation point, and
fractured pieces of the intended target that become lethal missiles.
IED's generally consist of what four components? - ANSWER Power source
Initiator
Explosive
Switch
(PIES)
Also may be a fifth - the container.
Examples of power source for an IED? - ANSWER Batteries (electric)
Coiled Spring(mechanical)
Flame(Heat).
Examples of initiators for an IED? - ANSWER Blasting Caps
Spark Plug
Photographic Flash Bulb
Automobile Light Bulb
Trick Birthday Candles
