ASBESTOS ABATEMENT SUPERVISOR
REFRESHER EXAM WITH CORRECT
ANSWERS 2025
What is asbestos? correct answers : A mineral that separates into long,
flexible fibers, used in various materials due to its durability.
What is ACM? correct answers Asbestos-Containing Material; any material
containing more than 1% asbestos.
When was asbestos banned for most construction applications in the
U.S.? correct answers In 1978.
What does PACM stand for? correct answers Presumed Asbestos-Containing
Material; TSI and SM in buildings constructed no later than 1980.
Name two common uses of asbestos in construction before the ban.
correct answers Thermal system insulation (TSI) and surface materials
(SM).
What is the difference between non-friable and friable asbestos? correct
answers : Non- friable cannot be crumbled by hand pressure; friable can be
crumbled and may become airborne.
What is the permissible exposure limit (PEL) for asbestos set by OSHA?
correct answers 0.1 fibers per cubic centimeter (f/cc) of air as an 8-hour
time-weighted average (TWA).
What are the four classifications of asbestos work according to OSHA?
correct answers Class I, Class II, Class III, and Class IV.
What does Class I asbestos work involve? correct answers Removal of
thermal system insulation (TSI) and surfacing asbestos-containing material
(ACM) and presumed ACM (PACM).
What is the focus of Class II asbestos work? correct answers Removal of
ACM that is not TSI or surface materials (SM).
Describe Class III asbestos work. correct answers Repair and maintenance
operations where ACM, including TSI and surfacing ACM and PACM, is likely
to be disturbed.
, What activities are included in Class IV asbestos work? correct answers
Maintenance and custodial activities where employees contact but do not
disturb ACM or PACM, and cleaning up dust, waste, and debris from Class I,
II, and III activities.
What is asbestos classified as? correct answers A known carcinogen, proven
to cause cancer in humans and lab animals.
What are the two primary routes of entry for asbestos fibers into the
body? correct answers Inhalation (breathing in) and ingestion
(swallowing).
What is the latency period in relation to asbestos exposure? correct answers
The time between initial exposure to asbestos and the onset of symptoms,
which may range from 10 to 40 years
What is synergism in the context of asbestos exposure? correct
answers : 50 to 90 times greater risk
Name three common diseases resulting from asbestos exposure.
correct answers Asbestosis, lung cancer, and mesothelioma.
What are some symptoms of asbestosis? correct answers Shortness of
breath, tightness in the chest, chest pain, dry cough, shallow rapid
breathing, loss of appetite, and dry crackling sounds in the lungs.
What are common symptoms of lung cancer? correct answers A cough or
change in coughing habits and chest pain.
What symptoms are associated with mesothelioma? correct answers A
cough, pain in the chest wall, shortness of breath, and weight loss.
Which body organs can be affected by asbestos exposure? correct
answers Lungs, esophagus, larynx, stomach, colon, and pancreas.
How does mesothelioma develop? correct answers If asbestos fibers
penetrate lung tissues to the lining of the lung and abdominal cavity, it
can develop and spread to bones and lymph glands.
: What are the three protective mechanisms the body uses against
asbestos fibers? correct answers 1) Cough reflex, 2) Cilia in the trachea
and lungs, 3) Immune system (macrophages).
Why must employers establish a medical monitoring and surveillance
program for asbestos? correct answers Due to health hazards related to
asbestos and regulatory requirements.
REFRESHER EXAM WITH CORRECT
ANSWERS 2025
What is asbestos? correct answers : A mineral that separates into long,
flexible fibers, used in various materials due to its durability.
What is ACM? correct answers Asbestos-Containing Material; any material
containing more than 1% asbestos.
When was asbestos banned for most construction applications in the
U.S.? correct answers In 1978.
What does PACM stand for? correct answers Presumed Asbestos-Containing
Material; TSI and SM in buildings constructed no later than 1980.
Name two common uses of asbestos in construction before the ban.
correct answers Thermal system insulation (TSI) and surface materials
(SM).
What is the difference between non-friable and friable asbestos? correct
answers : Non- friable cannot be crumbled by hand pressure; friable can be
crumbled and may become airborne.
What is the permissible exposure limit (PEL) for asbestos set by OSHA?
correct answers 0.1 fibers per cubic centimeter (f/cc) of air as an 8-hour
time-weighted average (TWA).
What are the four classifications of asbestos work according to OSHA?
correct answers Class I, Class II, Class III, and Class IV.
What does Class I asbestos work involve? correct answers Removal of
thermal system insulation (TSI) and surfacing asbestos-containing material
(ACM) and presumed ACM (PACM).
What is the focus of Class II asbestos work? correct answers Removal of
ACM that is not TSI or surface materials (SM).
Describe Class III asbestos work. correct answers Repair and maintenance
operations where ACM, including TSI and surfacing ACM and PACM, is likely
to be disturbed.
, What activities are included in Class IV asbestos work? correct answers
Maintenance and custodial activities where employees contact but do not
disturb ACM or PACM, and cleaning up dust, waste, and debris from Class I,
II, and III activities.
What is asbestos classified as? correct answers A known carcinogen, proven
to cause cancer in humans and lab animals.
What are the two primary routes of entry for asbestos fibers into the
body? correct answers Inhalation (breathing in) and ingestion
(swallowing).
What is the latency period in relation to asbestos exposure? correct answers
The time between initial exposure to asbestos and the onset of symptoms,
which may range from 10 to 40 years
What is synergism in the context of asbestos exposure? correct
answers : 50 to 90 times greater risk
Name three common diseases resulting from asbestos exposure.
correct answers Asbestosis, lung cancer, and mesothelioma.
What are some symptoms of asbestosis? correct answers Shortness of
breath, tightness in the chest, chest pain, dry cough, shallow rapid
breathing, loss of appetite, and dry crackling sounds in the lungs.
What are common symptoms of lung cancer? correct answers A cough or
change in coughing habits and chest pain.
What symptoms are associated with mesothelioma? correct answers A
cough, pain in the chest wall, shortness of breath, and weight loss.
Which body organs can be affected by asbestos exposure? correct
answers Lungs, esophagus, larynx, stomach, colon, and pancreas.
How does mesothelioma develop? correct answers If asbestos fibers
penetrate lung tissues to the lining of the lung and abdominal cavity, it
can develop and spread to bones and lymph glands.
: What are the three protective mechanisms the body uses against
asbestos fibers? correct answers 1) Cough reflex, 2) Cilia in the trachea
and lungs, 3) Immune system (macrophages).
Why must employers establish a medical monitoring and surveillance
program for asbestos? correct answers Due to health hazards related to
asbestos and regulatory requirements.
