HAZWOPER 40 Hour Training Study Guide 2023 with
complete solution
Additive Chemical Reaction
This occurs when toxic chemicals add their effects together in producing a biological
effect.
Antagonism
This occurs when the effect of two chemicals is less than expected.
Asphyxiants
These are chemicals that deprive the victim\'s body tissues of oxygen. Examples
include carbon monoxide and hydrogen cyanide.
Carcinogens
These are known to cause cancer. This is a chronic effect and symptoms are not
immediate. Examples include benzene and asbestos fibers.
Code of Federal Regulations (CFR)
This lists the general and permanent rules of federal agencies.
Comprehensive Environmental Response, Compensation, and Liability Act
(CERCLA)
This regulates and enforces the cleanup of abandoned hazardous waste sites and
hazardous waste sites created prior to RCRA.
Contamination Reduction Corridor (CRC)
This is the passageway between the Exclusion Zone and the Support Zone used for the
decontamination process. OSHA letters and CPLs call the corridor a zone.
Contamination Reduction Zone (CRZ)
This is a warm zone or transition zone. Its purpose is to reduce the probability of
contamination in the clean Support Zone.
Contingency plan
This is a written document that sets forth policies and procedures for responding to site
emergencies.
Corrosive material
A chemical that causes visible destruction of, or irreversible alterations in, living tissue
by chemical action at the site of contact.
Decontamination (Decon)
This is the process of removing or neutralizing contaminants that have accumulated on
personnel and equipment.
Ergonomics
This is the term that refers to arranging the work environment for an individual\'s body
requirements. It involves designing tasks, work stations, controls, displays, safety
devices, tools, and equipment to fit the worker.
Excavation
Means any man-made cut, cavity, trench, or depression in an earth surface, formed by
earth removal.
Exclusion zone
This is the contaminated area where the cleanup work is to be performed.
Geologic data
, Information having to do with the geology of the earth; facts about the structure of an
area that contains rock and minerals; data used to describe the physical structure of a
specific land site.
Hazard
This is any substance, situation, or condition that is capable of harming human health,
property, or the environment. It represents a potential for harm.
Hazard Communication Standard (HCS)
This Standard requires employers to evaluate chemical hazards in their facilities and to
communicate the hazard information to employees.
Hazardous waste
This is the term describing a hazardous substance that has no commercial value.
Hot line
This is the outer boundary of the exclusion zone.
Hydrologic data
Hydrology is the study of the distribution and flow of global water. Hydrologic data
quantifies water cycles and resources, as well as water quality, conditions, etc.
Immediately Dangerous to Life and Health (IDLH)
This denotes an atmosphere that poses an immediate threat to life, would cause
irreversible adverse health effect, or would impair one\'s ability to escape from a
dangerous atmosphere.
Irritants
A chemical, which is not corrosive, but which causes a reversible inflammatory effect on
living tissue by chemical action at the site of contact.
Lethal dose (Lethal concentration)
This is the specific amount of a particular material needed to cause a percentage of
deaths in a sample group of lab animals.
Lockout
This is the process of blocking the flow of energy from a power source to a piece of
equipment and keeping it blocked out.
Material Safety Data Sheet (MSDS)
This is a written form containing required information on defined hazardous chemicals
and their potential effects.
Mutagens
These cause alterations in the genes of an exposed person. Gene damage can be
passed on to children if the mutation occurred in either the sperm or the egg of the
parents. Examples include ethylene oxide, benzene, and hydrazine.
Oxidizer
This is the term that refers to any material that will gain electrons during a chemical
reaction, stimulating the combustion of organic materials.
Pathogens
These are biological organisms capable of infecting or transmitting diseases to humans.
Permissible Exposure Limits (PEL)
This is an enforceable standard of exposure promulgated by OSHA.
Potentiation
This occurs when a chemical with no known toxic effects acts together with a known
toxic substance to make the toxic substance even more potent.
complete solution
Additive Chemical Reaction
This occurs when toxic chemicals add their effects together in producing a biological
effect.
Antagonism
This occurs when the effect of two chemicals is less than expected.
Asphyxiants
These are chemicals that deprive the victim\'s body tissues of oxygen. Examples
include carbon monoxide and hydrogen cyanide.
Carcinogens
These are known to cause cancer. This is a chronic effect and symptoms are not
immediate. Examples include benzene and asbestos fibers.
Code of Federal Regulations (CFR)
This lists the general and permanent rules of federal agencies.
Comprehensive Environmental Response, Compensation, and Liability Act
(CERCLA)
This regulates and enforces the cleanup of abandoned hazardous waste sites and
hazardous waste sites created prior to RCRA.
Contamination Reduction Corridor (CRC)
This is the passageway between the Exclusion Zone and the Support Zone used for the
decontamination process. OSHA letters and CPLs call the corridor a zone.
Contamination Reduction Zone (CRZ)
This is a warm zone or transition zone. Its purpose is to reduce the probability of
contamination in the clean Support Zone.
Contingency plan
This is a written document that sets forth policies and procedures for responding to site
emergencies.
Corrosive material
A chemical that causes visible destruction of, or irreversible alterations in, living tissue
by chemical action at the site of contact.
Decontamination (Decon)
This is the process of removing or neutralizing contaminants that have accumulated on
personnel and equipment.
Ergonomics
This is the term that refers to arranging the work environment for an individual\'s body
requirements. It involves designing tasks, work stations, controls, displays, safety
devices, tools, and equipment to fit the worker.
Excavation
Means any man-made cut, cavity, trench, or depression in an earth surface, formed by
earth removal.
Exclusion zone
This is the contaminated area where the cleanup work is to be performed.
Geologic data
, Information having to do with the geology of the earth; facts about the structure of an
area that contains rock and minerals; data used to describe the physical structure of a
specific land site.
Hazard
This is any substance, situation, or condition that is capable of harming human health,
property, or the environment. It represents a potential for harm.
Hazard Communication Standard (HCS)
This Standard requires employers to evaluate chemical hazards in their facilities and to
communicate the hazard information to employees.
Hazardous waste
This is the term describing a hazardous substance that has no commercial value.
Hot line
This is the outer boundary of the exclusion zone.
Hydrologic data
Hydrology is the study of the distribution and flow of global water. Hydrologic data
quantifies water cycles and resources, as well as water quality, conditions, etc.
Immediately Dangerous to Life and Health (IDLH)
This denotes an atmosphere that poses an immediate threat to life, would cause
irreversible adverse health effect, or would impair one\'s ability to escape from a
dangerous atmosphere.
Irritants
A chemical, which is not corrosive, but which causes a reversible inflammatory effect on
living tissue by chemical action at the site of contact.
Lethal dose (Lethal concentration)
This is the specific amount of a particular material needed to cause a percentage of
deaths in a sample group of lab animals.
Lockout
This is the process of blocking the flow of energy from a power source to a piece of
equipment and keeping it blocked out.
Material Safety Data Sheet (MSDS)
This is a written form containing required information on defined hazardous chemicals
and their potential effects.
Mutagens
These cause alterations in the genes of an exposed person. Gene damage can be
passed on to children if the mutation occurred in either the sperm or the egg of the
parents. Examples include ethylene oxide, benzene, and hydrazine.
Oxidizer
This is the term that refers to any material that will gain electrons during a chemical
reaction, stimulating the combustion of organic materials.
Pathogens
These are biological organisms capable of infecting or transmitting diseases to humans.
Permissible Exposure Limits (PEL)
This is an enforceable standard of exposure promulgated by OSHA.
Potentiation
This occurs when a chemical with no known toxic effects acts together with a known
toxic substance to make the toxic substance even more potent.
