Exam Questions And Correct Answers

CA C22 Asbestos Abatement Contractor Exam Questions And Correct Answers (Verified Answers) Plus Rationale2026 Q&A| Instant Download Pdf

• What is the primary health risk associated with asbestos exposure?
• Skin irritation
• Eye infections
• Gastrointestinal cancer
• Lung-related diseases

Rationale: Asbestos fibers primarily affect the respiratory system, causing

asbestosis, lung cancer, and mesothelioma.

• Which agency sets permissible exposure limits (PEL) for asbestos in

the workplace?

A. EPA

B. OSHA

C. DOT

D. NFPA

Rationale: OSHA establishes workplace exposure limits to protect workers

from airborne asbestos.

3. OSHA’s PEL for asbestos is:

• 0.5 f/cc as an 8-hour TWA
• 0.1 f/cc as an 8-hour TWA
• 1.0 f/cc as an 8-hour TWA
• 0.05 f/cc as an 8-hour TWA

Rationale: OSHA mandates a maximum of 0.1 fibers/cc averaged over 8

hours. 1 / 3

• Which type of asbestos is most commonly used in construction

materials?

• Tremolite
• Chrysotile
• Crocidolite
• Actinolite

Rationale: Chrysotile (white asbestos) accounts for 90–95% of asbestos

used in building products.

• Before starting abatement, which document must be prepared and

maintained on site?

• Engineering plan
• Medical surveillance records
• Asbestos Work Plan / Exposure Control Plan
• Waste tracking form

Rationale: A site-specific plan is legally required to outline procedures and

controls.

6. Asbestos waste must be wetted:

• Only after bagging
• Only during demolition
• Throughout the removal process
• Only at the disposal site

Rationale: Wet methods reduce fiber release during all stages of removal.

7. Negative air machines must use:

• HEPA-like filters
• Carbon filters
• True HEPA filters
• UV filters

Rationale: HEPA filters remove 99.97% of particles ≥0.3 microns,

including asbestos fibers.

• The purpose of establishing a negative-pressure enclosure is: 2 / 3

• Control heat
• Prevent asbestos fibers from escaping the work area
• Improve ventilation
• Contain odors

Rationale: Negative pressure ensures airborne fibers are contained within

the regulated area.

• Which law bans certain asbestos-containing materials (ACM)?

A. CERCLA

B. TSCA

C. RCRA

• OSHA Act

Rationale: TSCA includes regulations restricting asbestos-containing

products.

• OSHA requires medical exams for workers exposed at or above the

action level for:

• 15 days per year
• 10 days per year
• 30 days per year
• 5 days per year

Rationale: Workers exposed ≥30 days/year must be in the medical

surveillance program.

11. The action level for asbestos is:

• 0.2 f/cc
• 0.1 f/cc
• 1.0 f/cc
• 0.5 f/cc

Rationale: OSHA sets the action level at 0.1 f/cc.

• When must respirators be worn?
• At all times on site
• Only during waste handling
• Only during wetting
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