HAZWOPER 40 – FINAL EXAM WITH ACTUAL
CORRECT QUESTIONS AND VERIFIED
DETAILED ANSWERS| CURRENTLY TESTING
VERSION | ALREADY GRADED A+|EXPERT
VERIFIED FOR GUARANTEED PASS 2026-2027
APR's are NOT approved for _______
IDLH (immediately dangerous to life and health) atmospheres
Cartridges must be changed prior to chemical ___
breakthrough
what three variables must be identified before APRs can be considered for use?
identity of hazard, concentration, and oxygen content
in an atmosphere which is IDLH, your best respiratory protection is a
positive pressure SCBA
pressure demand SCBAs have a protection factor of
10,000
the two types of entry and escape SCBAs are
open circuit and closed circuit
when should you wear an SCBA
when an APR protection factor is not sufficient for the chemical concentration in the
work area
______ is determined experimentally by measuring face piece seal and exhalation valve
leakage
the protection factor (PF)
an air-purifying respirator provides _________ than a supplied-air respirator
less protection
(PF)(PEL or TLV) =
Maximum Value Limit
1|Page
,define the acronym IDLH
Immediately Dangerous to Life or Health
the two types of respirator fit tests are
qualitative and quantitative
what are the two quick checks for wearing a respirator
positive and negative
the individual who uses a respirator is required to perform a _______ to ensure that an
adequate seal is achieved each time the respirator is put on
user seal check
all personnel and equipment leaving the hazardous water site must be ______ to prevent
the spread of hazardous materials off the site
decontaminated
the ________ is part of the site-specific health and safety plan
decontamination plan
_______ might be either on the surface of the PPE or may have permeated the PPE
material
contaminants
you should always try to _____ contact with contaminants
minimize
for _____ contaminants, treatment can only be performed by qualified physicians
inhaled
________ should be instituted immediately without considering decontamination
life-saving care
________ requires prompt treatment to prevent irreversible damage or death
heat stroke
overall planning for medical emergencies includes _________
all of the above- including:
- treatment of personnel suffering from exposure to chemicals
-providing consultation service with toxicologists and other medical specialists
-arranging with the nearest medical facility for transportation and treatment of injured
2|Page
,a method for determining effectiveness of surface decontamination is ________
swipe testing
the _______ controls access into and out of the exclusion zone and confines
decontamination activities to a limited area
personnel decontamination station (PDS)
_______ determines the potential for contact with hazardous materials
work function
what does the acronym CRZ stand for?
contamination reduction zone
there are two primary types of decontamination methods-
physical and chemical
chemical removal of surface contaminants can be accomplished by dissolving them in
a ______
solvent
_____ tools are difficult to decontaminate because they absorb chemicals
wooden
solidifying liquid or gel contaminants that enhance their physical removal is known as
_________
solidification
the smaller the size of the _________, the greater it will absorb into the protective
clothing material
contaminant molecule
you can rely on all hazardous substances or chemicals to leave visible traces
false
_________ temperatures will result in faster permeation of chemicals through protective
clothing
higher
when decontaminating items, it is important to remember that many hazardous
substances or chemicals _________
do not leave visible traces
3|Page
, _______ not completely decontaminated on site should be secured in plastic bags
before being removed from the site
clothing
it is likely that decontamination solutions will be considered a _______ by the US EPA
hazardous waste
decontamination procedures must provide an organized process by which levels of
contamination are _______
reduced
all decontamination workers are in a contaminated area and must be decontaminated
before entering the ____________
clean support zone
what are tiny particles from heating, volatilization, and condensation of metals?
fumes
what are tiny particles of solids?
dusts
what are chemicals that deprive the victim's body tissues of oxygen?
asphyixiants
the physical forms in which chemicals are encountered at a waste site play a large role
in the routes of entry into the body
true
What is defined as how the body handles poisons?
Toxicokinetics
What are the four ways toxic chemicals can enter the body?
-the most common toxic dose in the work environment comes through breathing, or
inhalation
-the next most common route of entry is through eye and/or skin contact
-the most common route in the home is swallowing or ingestion
-a route that is more accidental is injection
what is defined as a one time or an infrequent exposure to a high concentration of a
substance?
chronic
4|Page
CORRECT QUESTIONS AND VERIFIED
DETAILED ANSWERS| CURRENTLY TESTING
VERSION | ALREADY GRADED A+|EXPERT
VERIFIED FOR GUARANTEED PASS 2026-2027
APR's are NOT approved for _______
IDLH (immediately dangerous to life and health) atmospheres
Cartridges must be changed prior to chemical ___
breakthrough
what three variables must be identified before APRs can be considered for use?
identity of hazard, concentration, and oxygen content
in an atmosphere which is IDLH, your best respiratory protection is a
positive pressure SCBA
pressure demand SCBAs have a protection factor of
10,000
the two types of entry and escape SCBAs are
open circuit and closed circuit
when should you wear an SCBA
when an APR protection factor is not sufficient for the chemical concentration in the
work area
______ is determined experimentally by measuring face piece seal and exhalation valve
leakage
the protection factor (PF)
an air-purifying respirator provides _________ than a supplied-air respirator
less protection
(PF)(PEL or TLV) =
Maximum Value Limit
1|Page
,define the acronym IDLH
Immediately Dangerous to Life or Health
the two types of respirator fit tests are
qualitative and quantitative
what are the two quick checks for wearing a respirator
positive and negative
the individual who uses a respirator is required to perform a _______ to ensure that an
adequate seal is achieved each time the respirator is put on
user seal check
all personnel and equipment leaving the hazardous water site must be ______ to prevent
the spread of hazardous materials off the site
decontaminated
the ________ is part of the site-specific health and safety plan
decontamination plan
_______ might be either on the surface of the PPE or may have permeated the PPE
material
contaminants
you should always try to _____ contact with contaminants
minimize
for _____ contaminants, treatment can only be performed by qualified physicians
inhaled
________ should be instituted immediately without considering decontamination
life-saving care
________ requires prompt treatment to prevent irreversible damage or death
heat stroke
overall planning for medical emergencies includes _________
all of the above- including:
- treatment of personnel suffering from exposure to chemicals
-providing consultation service with toxicologists and other medical specialists
-arranging with the nearest medical facility for transportation and treatment of injured
2|Page
,a method for determining effectiveness of surface decontamination is ________
swipe testing
the _______ controls access into and out of the exclusion zone and confines
decontamination activities to a limited area
personnel decontamination station (PDS)
_______ determines the potential for contact with hazardous materials
work function
what does the acronym CRZ stand for?
contamination reduction zone
there are two primary types of decontamination methods-
physical and chemical
chemical removal of surface contaminants can be accomplished by dissolving them in
a ______
solvent
_____ tools are difficult to decontaminate because they absorb chemicals
wooden
solidifying liquid or gel contaminants that enhance their physical removal is known as
_________
solidification
the smaller the size of the _________, the greater it will absorb into the protective
clothing material
contaminant molecule
you can rely on all hazardous substances or chemicals to leave visible traces
false
_________ temperatures will result in faster permeation of chemicals through protective
clothing
higher
when decontaminating items, it is important to remember that many hazardous
substances or chemicals _________
do not leave visible traces
3|Page
, _______ not completely decontaminated on site should be secured in plastic bags
before being removed from the site
clothing
it is likely that decontamination solutions will be considered a _______ by the US EPA
hazardous waste
decontamination procedures must provide an organized process by which levels of
contamination are _______
reduced
all decontamination workers are in a contaminated area and must be decontaminated
before entering the ____________
clean support zone
what are tiny particles from heating, volatilization, and condensation of metals?
fumes
what are tiny particles of solids?
dusts
what are chemicals that deprive the victim's body tissues of oxygen?
asphyixiants
the physical forms in which chemicals are encountered at a waste site play a large role
in the routes of entry into the body
true
What is defined as how the body handles poisons?
Toxicokinetics
What are the four ways toxic chemicals can enter the body?
-the most common toxic dose in the work environment comes through breathing, or
inhalation
-the next most common route of entry is through eye and/or skin contact
-the most common route in the home is swallowing or ingestion
-a route that is more accidental is injection
what is defined as a one time or an infrequent exposure to a high concentration of a
substance?
chronic
4|Page
