Ohio Asbestos Supervisor Practice Exam
Questions And Correct Answers
(Verified Answers) Plus Rationales
2025|2026 Q&A | Instant Download Pdf
1. Which federal agency regulates asbestos in the workplace?
A. EPA
B. OSHA
C. NIOSH
D. DOT
Rationale: OSHA regulates worker exposure and safety standards
under 29 CFR 1926.1101.
2. The permissible exposure limit (PEL) for asbestos under OSHA is:
A. 0.5 f/cc over 8 hours
B. 0.2 f/cc over 8 hours
C. 0.1 f/cc over 8 hours
, D. 0.01 f/cc over 8 hours
Rationale: OSHA’s PEL is 0.1 fibers per cubic centimeter of air as an 8-
hour TWA.
3. The excursion limit for asbestos exposure is:
A. 0.05 f/cc for 15 minutes
B. 1.0 f/cc for 30 minutes
C. 0.1 f/cc for 30 minutes
D. 2.0 f/cc for 1 hour
Rationale: OSHA sets an excursion limit of 1.0 f/cc averaged over a 30-
minute period.
4. Which of the following is NOT considered an asbestos-containing
material (ACM)?
A. Material with >1% asbestos
B. Material with 0.5% asbestos
C. Pipe insulation with 10% asbestos
D. Floor tile with 5% asbestos
Rationale: By definition, ACM contains more than 1% asbestos by
weight.
5. Who must conduct air monitoring during Class I asbestos removal
projects?
A. Building owner
B. Competent person
C. Any worker
, D. Project manager only
Rationale: OSHA requires a competent person to oversee monitoring in
Class I work.
6. A negative exposure assessment must be based on:
A. Worker opinion
B. Material color
C. Objective data and previous sampling results
D. Length of project
Rationale: A negative exposure assessment relies on historical or
objective exposure data.
7. Which type of respirator is required for asbestos removal unless
exposure is shown to be lower?
A. Half-mask dust mask
B. Surgical mask
C. Full-facepiece air-purifying respirator with HEPA filters
D. None
Rationale: Minimum required is a full-face respirator with HEPA filters
unless lower exposure proven.
8. Which OSHA regulation governs asbestos in construction?
A. 1910.1001
B. 1926.1101
C. 1904.1201
D. 1928.1010
Questions And Correct Answers
(Verified Answers) Plus Rationales
2025|2026 Q&A | Instant Download Pdf
1. Which federal agency regulates asbestos in the workplace?
A. EPA
B. OSHA
C. NIOSH
D. DOT
Rationale: OSHA regulates worker exposure and safety standards
under 29 CFR 1926.1101.
2. The permissible exposure limit (PEL) for asbestos under OSHA is:
A. 0.5 f/cc over 8 hours
B. 0.2 f/cc over 8 hours
C. 0.1 f/cc over 8 hours
, D. 0.01 f/cc over 8 hours
Rationale: OSHA’s PEL is 0.1 fibers per cubic centimeter of air as an 8-
hour TWA.
3. The excursion limit for asbestos exposure is:
A. 0.05 f/cc for 15 minutes
B. 1.0 f/cc for 30 minutes
C. 0.1 f/cc for 30 minutes
D. 2.0 f/cc for 1 hour
Rationale: OSHA sets an excursion limit of 1.0 f/cc averaged over a 30-
minute period.
4. Which of the following is NOT considered an asbestos-containing
material (ACM)?
A. Material with >1% asbestos
B. Material with 0.5% asbestos
C. Pipe insulation with 10% asbestos
D. Floor tile with 5% asbestos
Rationale: By definition, ACM contains more than 1% asbestos by
weight.
5. Who must conduct air monitoring during Class I asbestos removal
projects?
A. Building owner
B. Competent person
C. Any worker
, D. Project manager only
Rationale: OSHA requires a competent person to oversee monitoring in
Class I work.
6. A negative exposure assessment must be based on:
A. Worker opinion
B. Material color
C. Objective data and previous sampling results
D. Length of project
Rationale: A negative exposure assessment relies on historical or
objective exposure data.
7. Which type of respirator is required for asbestos removal unless
exposure is shown to be lower?
A. Half-mask dust mask
B. Surgical mask
C. Full-facepiece air-purifying respirator with HEPA filters
D. None
Rationale: Minimum required is a full-face respirator with HEPA filters
unless lower exposure proven.
8. Which OSHA regulation governs asbestos in construction?
A. 1910.1001
B. 1926.1101
C. 1904.1201
D. 1928.1010
