hazmat awareness practice test EXAM QUESTIONS
AND VERIFIED CORRECT ANSWERS LATEST 2026-
2027 NEW VERSION
In general, which factor has the most influence on the actions taken at a hazardous
materials incident?
A. the initial actions of first responders
B. the properties of the specific chemicals involved
C. fixed facility versus transportation accident
D. weather conditions - answer>>>B. the properties of the specific chemicals involved
defensive hazardous materials operations are those actions taken to_________.
A. minimize the volume of the release
B. control the incident perimeter and isolate the hazard
C. prevent the situation from deteriorating
D. contain the release from a safe distance - answer>>>D. contain the release from a safe
distance
Approximately how many chemicals are registered for commercials use in the Unites
States?
A. 10,000
B. 25,000
C. 80,000
D. 200,000 - answer>>>C. 80,000
What is the minimum level of hazardous materials training required to take defensive
actions?
, -
A. awareness
B. technician
C. operations
D. specialist - answer>>>C. operations
what is the temperature at which a liquid continuously gives off vapors?
A. evaporation point
B. flash point
C. boiling point
D. fire point - answer>>>C. boiling point
what is the temperature at which flammable liquid will ignite without any external
ignition source?
A. fire point
B. flash point
C. lower explosive limit
D. ignition temperature - answer>>>D. ignition temperature
Why are flammable liquids with low boiling points dangerous?
A. ignition temperature is proportional to boiling point
B. such liquids react more readily with other substances
C. such liquids typically have a high vapor density
D. such liquids produce large volumes of flammable vapor at relatively low temperatures -
answer>>>D. such liquids produce large volumes of flammable vapor at relatively low
temperatures
Which toxic chemical is produced by the burning of wood?
,A. copper chlorate
B. organic peroxide
C. cyanide
D. acetic acid - answer>>>C. cyanide
which type of agent is also known as a riot-control agent?
A. deterrent
B. choking
C. irritant
D. smothering - answer>>>C. irritant
which section of the Emergency Response Guidebook (ERG) contains the guides?
A. green
B. yellow
C. blue
D. orange - answer>>>D. orange
what is the vapor density of air?
A. 14.7
B. 7
C. 1
D. 0 - answer>>>C. 1
Which term means the volume increase that occurs when a liquid materials changes to a
gas?
A. coefficient of vaporization
B. evaporation rate
, -
C. expansion ratio
D. evaporation volume - answer>>>C. expansion ratio
according to the NFPA, what is defined as a materials capable of posing an unreasonable
risk to health, safety, or the environment?
A. containment
B. hazard
C. dangerous god
D. exposure - answer>>>B. hazard
what is the term for the process by which people, animals, the environment, and
equipment come into contact with a hazardous material?
A. contamination
B. absorption
C. contact
D. exposure - answer>>>D. exposure
Which mnemonic helps firefighters remember the 7 categories of harm that can be
caused by terrorism agents or other hazardous materials?
A. WAFFLES
B. PANOPRY
C. TRACEMP
D. CALLUPP - answer>>>C. TRACEMP
which particle has a positive charge?
A. electron
AND VERIFIED CORRECT ANSWERS LATEST 2026-
2027 NEW VERSION
In general, which factor has the most influence on the actions taken at a hazardous
materials incident?
A. the initial actions of first responders
B. the properties of the specific chemicals involved
C. fixed facility versus transportation accident
D. weather conditions - answer>>>B. the properties of the specific chemicals involved
defensive hazardous materials operations are those actions taken to_________.
A. minimize the volume of the release
B. control the incident perimeter and isolate the hazard
C. prevent the situation from deteriorating
D. contain the release from a safe distance - answer>>>D. contain the release from a safe
distance
Approximately how many chemicals are registered for commercials use in the Unites
States?
A. 10,000
B. 25,000
C. 80,000
D. 200,000 - answer>>>C. 80,000
What is the minimum level of hazardous materials training required to take defensive
actions?
, -
A. awareness
B. technician
C. operations
D. specialist - answer>>>C. operations
what is the temperature at which a liquid continuously gives off vapors?
A. evaporation point
B. flash point
C. boiling point
D. fire point - answer>>>C. boiling point
what is the temperature at which flammable liquid will ignite without any external
ignition source?
A. fire point
B. flash point
C. lower explosive limit
D. ignition temperature - answer>>>D. ignition temperature
Why are flammable liquids with low boiling points dangerous?
A. ignition temperature is proportional to boiling point
B. such liquids react more readily with other substances
C. such liquids typically have a high vapor density
D. such liquids produce large volumes of flammable vapor at relatively low temperatures -
answer>>>D. such liquids produce large volumes of flammable vapor at relatively low
temperatures
Which toxic chemical is produced by the burning of wood?
,A. copper chlorate
B. organic peroxide
C. cyanide
D. acetic acid - answer>>>C. cyanide
which type of agent is also known as a riot-control agent?
A. deterrent
B. choking
C. irritant
D. smothering - answer>>>C. irritant
which section of the Emergency Response Guidebook (ERG) contains the guides?
A. green
B. yellow
C. blue
D. orange - answer>>>D. orange
what is the vapor density of air?
A. 14.7
B. 7
C. 1
D. 0 - answer>>>C. 1
Which term means the volume increase that occurs when a liquid materials changes to a
gas?
A. coefficient of vaporization
B. evaporation rate
, -
C. expansion ratio
D. evaporation volume - answer>>>C. expansion ratio
according to the NFPA, what is defined as a materials capable of posing an unreasonable
risk to health, safety, or the environment?
A. containment
B. hazard
C. dangerous god
D. exposure - answer>>>B. hazard
what is the term for the process by which people, animals, the environment, and
equipment come into contact with a hazardous material?
A. contamination
B. absorption
C. contact
D. exposure - answer>>>D. exposure
Which mnemonic helps firefighters remember the 7 categories of harm that can be
caused by terrorism agents or other hazardous materials?
A. WAFFLES
B. PANOPRY
C. TRACEMP
D. CALLUPP - answer>>>C. TRACEMP
which particle has a positive charge?
A. electron
