CERTIFIED LIFE SAFETY SPECIALIST CLS 2 UPDATED ACTUAL EXAM QUESTIONS
CORRECT ANSWERS GRADED A PLUS
Certified LIFE Safety Specialist CLS2 Questions and
Answers Verified Solutions Latest Update 2026/2027
Question:
What is defined as the rapid oxidation process with the evolution of light and heat in varying
intensities?
Answer:
Fire
Question:
What is defined as the technical understanding of how fires ignite, grow, and spread?
Answer:
Fire Dynamics
Question:
What are the 4 sub specialties of fire dynamics most interesting to educators?
Answer:
Ignition and heat release Heat transfer Fire growth and spread Flashover
Question:
What 3 key areas help participants understand how factors will react with each other?
Answer:
Material properties Temperature of Ignition Source Amount of heat applied
Question:
What is defined as the basic measurement of fire stored energy?
,Answer:
Fire Load
Question:
What is defined as the quantity of heat required to raise the temperature of 1 pound of water 1
degree F at the pressure of 1 atmosphere?
Answer:
British Thermal Unit (BTU)
Question:
What 3 things have the greatest impact on ignition behavior?
Answer:
Ignition temperature Surface area Mass of a material
Question:
Heat is transferred from one item to another by __, ___, ___.
Answer:
Radiation Convection Conduction
Question:
When fuel continues to burn without the external heat sources this is called what?
Answer:
Established burning
Question:
What is defined as when fire spreads very rapidly and other items in the room appear to burst into
flames with average temperature at the ceiling ranging from 930 degrees to 1300 degrees F?
,Answer:
Flashover
Question:
_____ refers to whether or not people can remain unhurt in a fire are or escape without serious
injury.
Answer:
Tenability
Question:
2 people could react very differently to the same fire. How well someone can withstand the physical
assault of fire, heat, smoke, and gases depends on what?
Answer:
Age of the victim - very old and very young don't do well Size - larger people can tolerate large
doses of toxic gases Pre-existing medical condition Respiratory capacity - 3 out of 4 fire deaths are
due to smoke inhalation Medication, drugs or alcohol
Question:
____ is the scientific measurement of how much heat is available for transfer to a human skin.
Answer:
Heat flu
Question:
What are some of the negative physical effects during fire that visible smoke produces?
Answer:
Reduced Visibility Irritation and toxicity caused by inhaling smoke particles Emotional effects,
causing fear
, Question:
____ is the primary culprit in fire deaths.
Answer:
Carbon monoxide
Question:
___ poisoning alone accounts for about half of all fire deaths.
Answer:
Carbon monoxide
Question:
_________ is what the fire and life safety educator does by developing and sharing safety skills and
information.
Answer:
Changing human behavior
Question:
In 1982 Dr. John Keating wrote an article called ___ which identified the four elements to panic
behavior?
Answer:
The Myth of Panic
Question:
Dr. John Keating's four elements to panic behavior are:
Answer:
A hope for escape even with closing escape routes Contagious behavior, especially if key noted by
leaders of a group affected by fire. Aggressive concern by the individual for his or her own safety as
opposed to concern for others in the same fire. Irrational, illogical response to the fire situation
CORRECT ANSWERS GRADED A PLUS
Certified LIFE Safety Specialist CLS2 Questions and
Answers Verified Solutions Latest Update 2026/2027
Question:
What is defined as the rapid oxidation process with the evolution of light and heat in varying
intensities?
Answer:
Fire
Question:
What is defined as the technical understanding of how fires ignite, grow, and spread?
Answer:
Fire Dynamics
Question:
What are the 4 sub specialties of fire dynamics most interesting to educators?
Answer:
Ignition and heat release Heat transfer Fire growth and spread Flashover
Question:
What 3 key areas help participants understand how factors will react with each other?
Answer:
Material properties Temperature of Ignition Source Amount of heat applied
Question:
What is defined as the basic measurement of fire stored energy?
,Answer:
Fire Load
Question:
What is defined as the quantity of heat required to raise the temperature of 1 pound of water 1
degree F at the pressure of 1 atmosphere?
Answer:
British Thermal Unit (BTU)
Question:
What 3 things have the greatest impact on ignition behavior?
Answer:
Ignition temperature Surface area Mass of a material
Question:
Heat is transferred from one item to another by __, ___, ___.
Answer:
Radiation Convection Conduction
Question:
When fuel continues to burn without the external heat sources this is called what?
Answer:
Established burning
Question:
What is defined as when fire spreads very rapidly and other items in the room appear to burst into
flames with average temperature at the ceiling ranging from 930 degrees to 1300 degrees F?
,Answer:
Flashover
Question:
_____ refers to whether or not people can remain unhurt in a fire are or escape without serious
injury.
Answer:
Tenability
Question:
2 people could react very differently to the same fire. How well someone can withstand the physical
assault of fire, heat, smoke, and gases depends on what?
Answer:
Age of the victim - very old and very young don't do well Size - larger people can tolerate large
doses of toxic gases Pre-existing medical condition Respiratory capacity - 3 out of 4 fire deaths are
due to smoke inhalation Medication, drugs or alcohol
Question:
____ is the scientific measurement of how much heat is available for transfer to a human skin.
Answer:
Heat flu
Question:
What are some of the negative physical effects during fire that visible smoke produces?
Answer:
Reduced Visibility Irritation and toxicity caused by inhaling smoke particles Emotional effects,
causing fear
, Question:
____ is the primary culprit in fire deaths.
Answer:
Carbon monoxide
Question:
___ poisoning alone accounts for about half of all fire deaths.
Answer:
Carbon monoxide
Question:
_________ is what the fire and life safety educator does by developing and sharing safety skills and
information.
Answer:
Changing human behavior
Question:
In 1982 Dr. John Keating wrote an article called ___ which identified the four elements to panic
behavior?
Answer:
The Myth of Panic
Question:
Dr. John Keating's four elements to panic behavior are:
Answer:
A hope for escape even with closing escape routes Contagious behavior, especially if key noted by
leaders of a group affected by fire. Aggressive concern by the individual for his or her own safety as
opposed to concern for others in the same fire. Irrational, illogical response to the fire situation
