NYC Asbestos Abatement Contractor
License Exam – Full-Length Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which federal agency primarily regulates asbestos standards for
worker protection?
A. EPA
B. OSHA
C. NIOSH
D. CDC
Answer: B
Rationale: OSHA establishes and enforces workplace safety and
exposure standards, including asbestos.
,2. Which NYC agency administers asbestos handler and contractor
licensing?
A. NYC DOB
B. NYC DOHMH
C. NYC DEP
D. NYC FDNY
Answer: B
Rationale: NYC Department of Health and Mental Hygiene oversees
asbestos licensing and certification.
3. What is the permissible exposure limit (PEL) for asbestos under OSHA
(8-hour TWA)?
A. 1.0 fiber/cc
B. 0.5 fiber/cc
C. 0.1 fiber/cc
D. 0.01 fiber/cc
Answer: C
Rationale: OSHA PEL for asbestos is 0.1 fiber per cubic centimeter as
an 8-hour TWA.
4. Which material is most likely to be classified as friable ACM?
A. Vinyl asbestos tile
B. Cement board
, C. Spray-applied fireproofing
D. Asphalt roofing
Answer: C
Rationale: Spray-applied fireproofing can be easily crumbled and
release fibers.
5. What document must be submitted before starting regulated asbestos
work in NYC?
A. Daily log
B. Variance request
C. Asbestos Project Notification
D. Waste manifest
Answer: C
Rationale: Project notification is required before regulated asbestos
work begins.
6. Negative pressure in an enclosure is primarily used to:
A. Increase airflow
B. Prevent fiber escape
C. Dry surfaces
D. Reduce humidity
Answer: B
, Rationale: Negative pressure prevents asbestos fibers from escaping
the containment.
7. Which equipment maintains negative air pressure?
A. HEPA vacuum
B. Dehumidifier
C. Negative air machine with HEPA filter
D. Air scrubber fan only
Answer: C
Rationale: Negative air machines with HEPA filtration maintain
containment pressure control.
8. HEPA filters must remove at least what percentage of particles ≥0.3
microns?
A. 95%
B. 97%
C. 99%
D. 99.97%
Answer: D
Rationale: HEPA filters are rated at 99.97% efficiency at 0.3 microns.
License Exam – Full-Length Practice
Questions And Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. Which federal agency primarily regulates asbestos standards for
worker protection?
A. EPA
B. OSHA
C. NIOSH
D. CDC
Answer: B
Rationale: OSHA establishes and enforces workplace safety and
exposure standards, including asbestos.
,2. Which NYC agency administers asbestos handler and contractor
licensing?
A. NYC DOB
B. NYC DOHMH
C. NYC DEP
D. NYC FDNY
Answer: B
Rationale: NYC Department of Health and Mental Hygiene oversees
asbestos licensing and certification.
3. What is the permissible exposure limit (PEL) for asbestos under OSHA
(8-hour TWA)?
A. 1.0 fiber/cc
B. 0.5 fiber/cc
C. 0.1 fiber/cc
D. 0.01 fiber/cc
Answer: C
Rationale: OSHA PEL for asbestos is 0.1 fiber per cubic centimeter as
an 8-hour TWA.
4. Which material is most likely to be classified as friable ACM?
A. Vinyl asbestos tile
B. Cement board
, C. Spray-applied fireproofing
D. Asphalt roofing
Answer: C
Rationale: Spray-applied fireproofing can be easily crumbled and
release fibers.
5. What document must be submitted before starting regulated asbestos
work in NYC?
A. Daily log
B. Variance request
C. Asbestos Project Notification
D. Waste manifest
Answer: C
Rationale: Project notification is required before regulated asbestos
work begins.
6. Negative pressure in an enclosure is primarily used to:
A. Increase airflow
B. Prevent fiber escape
C. Dry surfaces
D. Reduce humidity
Answer: B
, Rationale: Negative pressure prevents asbestos fibers from escaping
the containment.
7. Which equipment maintains negative air pressure?
A. HEPA vacuum
B. Dehumidifier
C. Negative air machine with HEPA filter
D. Air scrubber fan only
Answer: C
Rationale: Negative air machines with HEPA filtration maintain
containment pressure control.
8. HEPA filters must remove at least what percentage of particles ≥0.3
microns?
A. 95%
B. 97%
C. 99%
D. 99.97%
Answer: D
Rationale: HEPA filters are rated at 99.97% efficiency at 0.3 microns.
