HazMat Ops OFSM Exam Latest
Update 2025/2026 GRADED A+
Hazardous material Definition - correct answerSubstance/material capable of posing
unreasonable risk to human health, safety, or the environment when transported, used
incorrectly, or not properly contained
State-plan states def - correct answerStates that adopt OSHA regulations
Non-plan states - correct answerFollow title 40 of the code of federal regulations,
Protection of the Environment, Part 311
HAZWOPER def - correct answerHazardous Waste of Operations and Emergency
Response
Training levels - correct answer-Awareness
-Ops
-Technician
-Specialist
-Incident Commander
HazMat Ops Competencies - correct answer-Hazard ID and risk assessment
-PPE
-Control, contain, confine
-Decon
Department of Transportation DOT creates laws and regs governing... - correct
answerTransportation of goods by highway, rail, pipeline, air, marine
SARA - correct answerSuperfund Amendments and Reauthorization Act of 1986 =
SARA
Created standard practice for local community to understand chemical hazards
SARA Title III: (EPCRA) - correct answerEmergency Planning and Community Right to
Know Act (EPCRA)
Businesses report storage type, quantity, and methods to fire department and local
emergency planning community
Local Emergency Planning Committee (LEPC) - correct answerGathers and
disseminates info about hazmat to public
,Volunteer
Collects SDS
Globally Harmonized System of Classification and Labeling of Chemicals (GHS)
SDS: Safety Data Sheet - correct answerDetailed profile of chem/mixture
Provided by manufacturer/supplier
Phys and Chemical properties
Toxicology data
Provides basic information about the chemical make-up of a substance, its potential
hazards, and appropriate first aid
required by law to have an SDS on file for each chemical
Globally Harmonized System of Classification and Labeling of Chemicals (GHS) -
correct answer
Levels of training according to NFPA Standards - correct answer1. Awareness
2. Ops
3. Technician
4. HazMat Branch Officer
5. IC
6. Private sector specialist
NFPA 472: - correct answerStandard for competence of responders to HazMat/WMDs
-PPE
-Technical Decon
-Mass decon
-Evidence preservation and sampling
-Product control
-Victim rescue and recovery ops
-Illicit labs
-Air monitoring and sampling
NFPA 473: - correct answerStandard for Competencies for EMS Personnel Responding
to Hazardous Materials/Weapons of Mass Destruction Incidents
-ALS/BLS
Preplanning - correct answer-Activities take place at target hazards
-Discuss/share info with LEPC
-Fire depts, police, public health and other gov agencies work together in case of large-
scale emergency
Weapons of Mass Destruction - correct answerCriminal use of hazmats:
-illicit labs
, -environmental crimes
-industrial sabotage
Chemical Abstracts Service (CAS) - correct answerUnique CAS number identifier for
each HazMat
Produces the largest databases on chemical information
First Step: - correct answerIdentify the state of matter
Ways containers breach: - correct answerDisintegration,
runaway cracking,
closures opening,
punctures,
tears
BLEVE - correct answerBoiling liquid expanding vapor explosion
Chemical reactivity - correct answerThe ability of a substance to undergo a
transformation at the molecular level
Flash point - correct answerMinimum temperature at which vapors from a liquid or solid
will result in a flash fire when ignited
Fire Point (2) - correct answerTemperature at which sustained combustion of vapor will
occur
Usually only slightly higher than the flash point for most materials
Autoignition temperature - correct answerMinimum temperature at which a fuel, when
heated, will ignite in air and continue to burn
Flammable Range - correct answerExpression of fuel/air mixture that reflects an amount
of flammable vapor mixed with a given volume of air
LEL=LFL
UEL=UFL
The wider the range, the more dangerous the material
Vapor Pressure - correct answerApplies to liquids held inside any type of closed
container
Liquids with high vapor pressures evaporate much more quickly than low vapor
pressure
PSI/ATM/TORR/MMHG/Bar - correct answer14.7 psi = 1 atm = 760 torr = 760 mm Hg =
1 bar
Update 2025/2026 GRADED A+
Hazardous material Definition - correct answerSubstance/material capable of posing
unreasonable risk to human health, safety, or the environment when transported, used
incorrectly, or not properly contained
State-plan states def - correct answerStates that adopt OSHA regulations
Non-plan states - correct answerFollow title 40 of the code of federal regulations,
Protection of the Environment, Part 311
HAZWOPER def - correct answerHazardous Waste of Operations and Emergency
Response
Training levels - correct answer-Awareness
-Ops
-Technician
-Specialist
-Incident Commander
HazMat Ops Competencies - correct answer-Hazard ID and risk assessment
-PPE
-Control, contain, confine
-Decon
Department of Transportation DOT creates laws and regs governing... - correct
answerTransportation of goods by highway, rail, pipeline, air, marine
SARA - correct answerSuperfund Amendments and Reauthorization Act of 1986 =
SARA
Created standard practice for local community to understand chemical hazards
SARA Title III: (EPCRA) - correct answerEmergency Planning and Community Right to
Know Act (EPCRA)
Businesses report storage type, quantity, and methods to fire department and local
emergency planning community
Local Emergency Planning Committee (LEPC) - correct answerGathers and
disseminates info about hazmat to public
,Volunteer
Collects SDS
Globally Harmonized System of Classification and Labeling of Chemicals (GHS)
SDS: Safety Data Sheet - correct answerDetailed profile of chem/mixture
Provided by manufacturer/supplier
Phys and Chemical properties
Toxicology data
Provides basic information about the chemical make-up of a substance, its potential
hazards, and appropriate first aid
required by law to have an SDS on file for each chemical
Globally Harmonized System of Classification and Labeling of Chemicals (GHS) -
correct answer
Levels of training according to NFPA Standards - correct answer1. Awareness
2. Ops
3. Technician
4. HazMat Branch Officer
5. IC
6. Private sector specialist
NFPA 472: - correct answerStandard for competence of responders to HazMat/WMDs
-PPE
-Technical Decon
-Mass decon
-Evidence preservation and sampling
-Product control
-Victim rescue and recovery ops
-Illicit labs
-Air monitoring and sampling
NFPA 473: - correct answerStandard for Competencies for EMS Personnel Responding
to Hazardous Materials/Weapons of Mass Destruction Incidents
-ALS/BLS
Preplanning - correct answer-Activities take place at target hazards
-Discuss/share info with LEPC
-Fire depts, police, public health and other gov agencies work together in case of large-
scale emergency
Weapons of Mass Destruction - correct answerCriminal use of hazmats:
-illicit labs
, -environmental crimes
-industrial sabotage
Chemical Abstracts Service (CAS) - correct answerUnique CAS number identifier for
each HazMat
Produces the largest databases on chemical information
First Step: - correct answerIdentify the state of matter
Ways containers breach: - correct answerDisintegration,
runaway cracking,
closures opening,
punctures,
tears
BLEVE - correct answerBoiling liquid expanding vapor explosion
Chemical reactivity - correct answerThe ability of a substance to undergo a
transformation at the molecular level
Flash point - correct answerMinimum temperature at which vapors from a liquid or solid
will result in a flash fire when ignited
Fire Point (2) - correct answerTemperature at which sustained combustion of vapor will
occur
Usually only slightly higher than the flash point for most materials
Autoignition temperature - correct answerMinimum temperature at which a fuel, when
heated, will ignite in air and continue to burn
Flammable Range - correct answerExpression of fuel/air mixture that reflects an amount
of flammable vapor mixed with a given volume of air
LEL=LFL
UEL=UFL
The wider the range, the more dangerous the material
Vapor Pressure - correct answerApplies to liquids held inside any type of closed
container
Liquids with high vapor pressures evaporate much more quickly than low vapor
pressure
PSI/ATM/TORR/MMHG/Bar - correct answer14.7 psi = 1 atm = 760 torr = 760 mm Hg =
1 bar
