CBRN Defense UPDATED Exam Questions
and CORRECT Answers
Persistent Agents - CORRECT ANSWER - Any chemical agent that stays in an effected
area for more than 12 hours
Non-persistent agents - CORRECT ANSWER - Any chemical agent that stays in an
effected area for less than 12 hours
Persistent attacks - CORRECT ANSWER - Defined as air bursting, ground contaminating
(ie. aircraft spray or air bursting munitions)
Non-persistent attacks - CORRECT ANSWER - Defined as ground bursting, air
contaminating (ie. mortars, rockets, artillery bombs)
Nerve agents are broken down into two broad categories... - CORRECT ANSWER - Non-
persistent and persistent
-should not be used to classify biological agents
Nerve agents - CORRECT ANSWER - Group of highly toxic chemicals that interfere with
signals transmitted through the central nervous system
Penetration of the body - CORRECT ANSWER - Depends on agent and route into body:
Eyes: Symptoms appear 15 seconds-3 minutes. Liquid exposure of the eyes can kill in 1 to 10
minutes.
Respiratory system: Symptoms appear 2-5 minutes with terminal effects within 15 minutes.
Lethal respiratory dosages can kill in 1 to 10 minutes.
Skin: Symptoms appear much more slowly. Lethal doses may occur in 1 to 2 hours. Very small
skin dosages sometimes cause local sweating and tremors with little other effect.
, What are the two types of nerve agent medicants? - CORRECT ANSWER - Nerve Agent
Antidote Kit Mark I (NAAK MArk I)
Convulsion Antidote for Nerve Agents (CANA)
What do most blood agents contain? - CORRECT ANSWER - Cyanide-containing
compounds which are absorbed into the body primarily by breathing
All blood agents are classified as... - CORRECT ANSWER - non-persistent
What are the three blood agents we are concerned about? - CORRECT ANSWER --
Hydrogen Cyanide AC
-Cyanogen Chloride CL
-Arsine SA
Symptoms of AC blood agent? - CORRECT ANSWER - High concentrations
-Increased depth of respiration within a few seconds
-Violent convulsions after 20-30 seconds
-Stop breathing within 1 minute
-Heart stops within a few minutes
-Skin, lips, and fingertips will have a pink color
Moderate concentrations
-Dizziness, nausea, and headache appear very early
-Convulsions and death
-Long exposure to low concentration
-Lack of oxygen to muscles may cause damage to the central nervous system
-Coma and convulsions may last for several hours or days
-Irrationality, altered reflexes, and unsteady gait which may last for several weeks or longer
and CORRECT Answers
Persistent Agents - CORRECT ANSWER - Any chemical agent that stays in an effected
area for more than 12 hours
Non-persistent agents - CORRECT ANSWER - Any chemical agent that stays in an
effected area for less than 12 hours
Persistent attacks - CORRECT ANSWER - Defined as air bursting, ground contaminating
(ie. aircraft spray or air bursting munitions)
Non-persistent attacks - CORRECT ANSWER - Defined as ground bursting, air
contaminating (ie. mortars, rockets, artillery bombs)
Nerve agents are broken down into two broad categories... - CORRECT ANSWER - Non-
persistent and persistent
-should not be used to classify biological agents
Nerve agents - CORRECT ANSWER - Group of highly toxic chemicals that interfere with
signals transmitted through the central nervous system
Penetration of the body - CORRECT ANSWER - Depends on agent and route into body:
Eyes: Symptoms appear 15 seconds-3 minutes. Liquid exposure of the eyes can kill in 1 to 10
minutes.
Respiratory system: Symptoms appear 2-5 minutes with terminal effects within 15 minutes.
Lethal respiratory dosages can kill in 1 to 10 minutes.
Skin: Symptoms appear much more slowly. Lethal doses may occur in 1 to 2 hours. Very small
skin dosages sometimes cause local sweating and tremors with little other effect.
, What are the two types of nerve agent medicants? - CORRECT ANSWER - Nerve Agent
Antidote Kit Mark I (NAAK MArk I)
Convulsion Antidote for Nerve Agents (CANA)
What do most blood agents contain? - CORRECT ANSWER - Cyanide-containing
compounds which are absorbed into the body primarily by breathing
All blood agents are classified as... - CORRECT ANSWER - non-persistent
What are the three blood agents we are concerned about? - CORRECT ANSWER --
Hydrogen Cyanide AC
-Cyanogen Chloride CL
-Arsine SA
Symptoms of AC blood agent? - CORRECT ANSWER - High concentrations
-Increased depth of respiration within a few seconds
-Violent convulsions after 20-30 seconds
-Stop breathing within 1 minute
-Heart stops within a few minutes
-Skin, lips, and fingertips will have a pink color
Moderate concentrations
-Dizziness, nausea, and headache appear very early
-Convulsions and death
-Long exposure to low concentration
-Lack of oxygen to muscles may cause damage to the central nervous system
-Coma and convulsions may last for several hours or days
-Irrationality, altered reflexes, and unsteady gait which may last for several weeks or longer
