ASBESTOS SUPERVISOR PRACTICE EXAM
Questions With Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary health hazard associated with
asbestos exposure?
A. Skin irritation
B. Asbestosis, lung cancer, and mesothelioma
C. Hearing loss
D. Liver damage
Correct Answer: B
Asbestos fibers, when inhaled, cause serious long-term
respiratory diseases including asbestosis (lung scarring), lung
cancer, and mesothelioma, which is a rare cancer affecting the
lining of the lungs and abdomen.
2. Which fiber type is considered most hazardous among
asbestos types?
A. Chrysotile
, B. Fiberglass
C. Amosite
D. Cellulose
Correct Answer: C
Amosite (brown asbestos) is highly friable and has a strong
association with severe lung disease due to its needle-like fiber
structure and persistence in lung tissue.
3. The main route of asbestos entry into the body is through:
A. Skin absorption
B. Ingestion of contaminated food
C. Inhalation
D. Eye contact
Correct Answer: C
Asbestos fibers are primarily hazardous when airborne and
inhaled into the lungs, where they become lodged and cause
chronic inflammation and scarring.
4. What is the purpose of a negative pressure enclosure in
asbestos work?
A. Increase airflow into the room
B. Prevent fiber release into surrounding areas
, C. Dry asbestos materials faster
D. Cool the work area
Correct Answer: B
Negative pressure systems ensure contaminated air is
contained within the enclosure and filtered before release,
preventing asbestos fibers from escaping into clean areas.
5. Which PPE is essential for asbestos supervisors on site?
A. Cotton gloves only
B. Respirator and disposable coveralls
C. Hard hat only
D. Sunglasses
Correct Answer: B
Respirators and disposable protective coveralls are critical to
prevent inhalation and contamination of asbestos fibers
during handling activities.
6. What is the function of HEPA filters in asbestos work?
A. Heat air
B. Trap microscopic asbestos fibers
C. Cool equipment
D. Increase airflow speed
, Correct Answer: B
HEPA filters are designed to capture at least 99.97% of
particles 0.3 microns in size, effectively trapping airborne
asbestos fibers.
7. Which method is commonly used to reduce asbestos fiber
release during removal?
A. Dry scraping
B. Compressed air blasting
C. Wetting materials
D. Sandblasting
Correct Answer: C
Wetting asbestos-containing materials minimizes dust
generation and reduces airborne fiber release during handling
and removal.
8. What is the purpose of an asbestos supervisor on site?
A. Perform electrical repairs
B. Oversee safety and compliance of asbestos work
C. Design buildings
D. Operate heavy machinery only
Correct Answer: B
The asbestos supervisor ensures that all removal activities
Questions With Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is the primary health hazard associated with
asbestos exposure?
A. Skin irritation
B. Asbestosis, lung cancer, and mesothelioma
C. Hearing loss
D. Liver damage
Correct Answer: B
Asbestos fibers, when inhaled, cause serious long-term
respiratory diseases including asbestosis (lung scarring), lung
cancer, and mesothelioma, which is a rare cancer affecting the
lining of the lungs and abdomen.
2. Which fiber type is considered most hazardous among
asbestos types?
A. Chrysotile
, B. Fiberglass
C. Amosite
D. Cellulose
Correct Answer: C
Amosite (brown asbestos) is highly friable and has a strong
association with severe lung disease due to its needle-like fiber
structure and persistence in lung tissue.
3. The main route of asbestos entry into the body is through:
A. Skin absorption
B. Ingestion of contaminated food
C. Inhalation
D. Eye contact
Correct Answer: C
Asbestos fibers are primarily hazardous when airborne and
inhaled into the lungs, where they become lodged and cause
chronic inflammation and scarring.
4. What is the purpose of a negative pressure enclosure in
asbestos work?
A. Increase airflow into the room
B. Prevent fiber release into surrounding areas
, C. Dry asbestos materials faster
D. Cool the work area
Correct Answer: B
Negative pressure systems ensure contaminated air is
contained within the enclosure and filtered before release,
preventing asbestos fibers from escaping into clean areas.
5. Which PPE is essential for asbestos supervisors on site?
A. Cotton gloves only
B. Respirator and disposable coveralls
C. Hard hat only
D. Sunglasses
Correct Answer: B
Respirators and disposable protective coveralls are critical to
prevent inhalation and contamination of asbestos fibers
during handling activities.
6. What is the function of HEPA filters in asbestos work?
A. Heat air
B. Trap microscopic asbestos fibers
C. Cool equipment
D. Increase airflow speed
, Correct Answer: B
HEPA filters are designed to capture at least 99.97% of
particles 0.3 microns in size, effectively trapping airborne
asbestos fibers.
7. Which method is commonly used to reduce asbestos fiber
release during removal?
A. Dry scraping
B. Compressed air blasting
C. Wetting materials
D. Sandblasting
Correct Answer: C
Wetting asbestos-containing materials minimizes dust
generation and reduces airborne fiber release during handling
and removal.
8. What is the purpose of an asbestos supervisor on site?
A. Perform electrical repairs
B. Oversee safety and compliance of asbestos work
C. Design buildings
D. Operate heavy machinery only
Correct Answer: B
The asbestos supervisor ensures that all removal activities
