AR AB Asbestos Contractor Exam
Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. Which federal agency regulates asbestos in the workplace?
A. OSHA
B. EPA
C. NIOSH
D. CDC
Answer: NIOSH
Rationale: NIOSH (National Institute for Occupational Safety and Health)
conducts research and makes recommendations for the prevention of work-
related asbestos exposure.
2. What is the primary health hazard associated with asbestos exposure?
A. Skin irritation
B. Eye infection
C. Respiratory disease
D. Hearing loss
Answer: Respiratory disease
Rationale: Inhalation of asbestos fibers can lead to serious respiratory
diseases including asbestosis, lung cancer, and mesothelioma.
3. Which type of asbestos is considered the most hazardous?
A. Chrysotile
B. Amosite
, C. Crocidolite
D. Tremolite
Answer: Crocidolite
Rationale: Crocidolite (blue asbestos) has fine fibers that are more easily
inhaled and more carcinogenic than other asbestos types.
4. What is the minimum respiratory protection required when handling
friable asbestos?
A. Dust mask
B. NIOSH-approved respirator
C. Surgical mask
D. Cloth mask
Answer: NIOSH-approved respirator
Rationale: Handling friable asbestos requires a NIOSH-certified respirator
(half-mask or full-face) to prevent inhalation of fibers.
5. What is considered friable asbestos?
A. Asbestos bound in cement
B. Asbestos that can be crumbled by hand
C. Asbestos in floor tiles
D. Asbestos insulation under high heat
Answer: Asbestos that can be crumbled by hand
Rationale: Friable asbestos can be easily crumbled, releasing fibers into the
air, posing the highest health risk.
6. Which of the following work practices minimizes asbestos exposure?
A. Dry sweeping
B. Sanding asbestos
C. Wet methods and HEPA vacuuming
D. Chipping with power tools
Answer: Wet methods and HEPA vacuuming
Rationale: Wetting asbestos materials and using HEPA-filtered vacuums
reduces airborne fiber release.
, 7. Which OSHA standard covers asbestos in general industry?
A. 29 CFR 1926.1101
B. 29 CFR 1910.1001
C. 29 CFR 1910.134
D. 29 CFR 1926.59
Answer: 29 CFR 1910.1001
Rationale: 29 CFR 1910.1001 is the OSHA standard for asbestos exposure
in general industry.
8. What is the first step in an asbestos abatement project?
A. Removing insulation
B. Conducting a survey and risk assessment
C. Demolition
D. Wetting materials
Answer: Conducting a survey and risk assessment
Rationale: A thorough survey identifies asbestos-containing materials and
determines the appropriate abatement method.
9. Which type of asbestos work requires an EPA notification?
A. Minor repair
B. Routine cleaning
C. Demolition or renovation affecting >160 sq. ft. of asbestos
D. Painting over asbestos-containing material
Answer: Demolition or renovation affecting >160 sq. ft. of asbestos
Rationale: EPA regulations require notifications for significant asbestos
disturbance, including demolition or large-scale renovation.
10. What is the purpose of a negative pressure enclosure?
A. Reduce noise
B. Prevent asbestos fibers from leaving the work area
C. Keep dust out
D. Increase air circulation
Questions And Correct Answers
(Verified Answers) Plus Rationale2026
Q&A| Instant Download Pdf
1. Which federal agency regulates asbestos in the workplace?
A. OSHA
B. EPA
C. NIOSH
D. CDC
Answer: NIOSH
Rationale: NIOSH (National Institute for Occupational Safety and Health)
conducts research and makes recommendations for the prevention of work-
related asbestos exposure.
2. What is the primary health hazard associated with asbestos exposure?
A. Skin irritation
B. Eye infection
C. Respiratory disease
D. Hearing loss
Answer: Respiratory disease
Rationale: Inhalation of asbestos fibers can lead to serious respiratory
diseases including asbestosis, lung cancer, and mesothelioma.
3. Which type of asbestos is considered the most hazardous?
A. Chrysotile
B. Amosite
, C. Crocidolite
D. Tremolite
Answer: Crocidolite
Rationale: Crocidolite (blue asbestos) has fine fibers that are more easily
inhaled and more carcinogenic than other asbestos types.
4. What is the minimum respiratory protection required when handling
friable asbestos?
A. Dust mask
B. NIOSH-approved respirator
C. Surgical mask
D. Cloth mask
Answer: NIOSH-approved respirator
Rationale: Handling friable asbestos requires a NIOSH-certified respirator
(half-mask or full-face) to prevent inhalation of fibers.
5. What is considered friable asbestos?
A. Asbestos bound in cement
B. Asbestos that can be crumbled by hand
C. Asbestos in floor tiles
D. Asbestos insulation under high heat
Answer: Asbestos that can be crumbled by hand
Rationale: Friable asbestos can be easily crumbled, releasing fibers into the
air, posing the highest health risk.
6. Which of the following work practices minimizes asbestos exposure?
A. Dry sweeping
B. Sanding asbestos
C. Wet methods and HEPA vacuuming
D. Chipping with power tools
Answer: Wet methods and HEPA vacuuming
Rationale: Wetting asbestos materials and using HEPA-filtered vacuums
reduces airborne fiber release.
, 7. Which OSHA standard covers asbestos in general industry?
A. 29 CFR 1926.1101
B. 29 CFR 1910.1001
C. 29 CFR 1910.134
D. 29 CFR 1926.59
Answer: 29 CFR 1910.1001
Rationale: 29 CFR 1910.1001 is the OSHA standard for asbestos exposure
in general industry.
8. What is the first step in an asbestos abatement project?
A. Removing insulation
B. Conducting a survey and risk assessment
C. Demolition
D. Wetting materials
Answer: Conducting a survey and risk assessment
Rationale: A thorough survey identifies asbestos-containing materials and
determines the appropriate abatement method.
9. Which type of asbestos work requires an EPA notification?
A. Minor repair
B. Routine cleaning
C. Demolition or renovation affecting >160 sq. ft. of asbestos
D. Painting over asbestos-containing material
Answer: Demolition or renovation affecting >160 sq. ft. of asbestos
Rationale: EPA regulations require notifications for significant asbestos
disturbance, including demolition or large-scale renovation.
10. What is the purpose of a negative pressure enclosure?
A. Reduce noise
B. Prevent asbestos fibers from leaving the work area
C. Keep dust out
D. Increase air circulation
