Certification Exam Practice Questions

Asbestos Abatement Contractor Certification Exam Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which of the following best defines asbestos?
• A type of mold
• A group of naturally occurring fibrous minerals
• A synthetic polymer
• A flammable gas
• A group of naturally occurring fibrous minerals

Rationale: Asbestos is a naturally occurring mineral known for its

heat resistance, tensile strength, and fibrous structure, commonly used in insulation and construction materials. 1 / 4

• Which federal agency regulates asbestos in the workplace?

A. EPA

B. OSHA

C. FDA

D. DOT

B. OSHA

Rationale: OSHA sets workplace safety standards, including

permissible exposure limits (PELs) for asbestos.

3. The primary health risk associated with asbestos exposure is:

• Asthma
• Mesothelioma
• Skin rash
• Hearing loss
• Mesothelioma

Rationale: Inhalation of asbestos fibers can lead to lung diseases,

including asbestosis, lung cancer, and mesothelioma, a cancer affecting the lining of the lungs.

• What is the recommended respirator for asbestos abatement

activities?

• Half-mask with organic vapor cartridges
• N95 disposable respirator
• Full-facepiece respirator with HEPA filter
• No respirator needed 2 / 4

• Full-facepiece respirator with HEPA filter

Rationale: A full-facepiece respirator with a HEPA filter provides

maximum protection against asbestos fibers.

• Which type of asbestos material is considered friable?
• Vinyl asbestos tile
• Asbestos cement siding
• Spray-applied insulation
• Floor mastic
• Spray-applied insulation

Rationale: Friable asbestos can be crumbled or pulverized by hand,

making it more likely to release fibers into the air.

• Which personal protective equipment (PPE) is essential during

asbestos abatement?

• Gloves and safety glasses only
• Protective suit, gloves, respirator, and boot covers
• Hard hat only
• Ear protection and goggles
• Protective suit, gloves, respirator, and boot covers

Rationale: Complete PPE prevents skin contact and inhalation of

asbestos fibers.

7. The main purpose of a negative pressure enclosure is:

• To increase airflow in the work area
• To prevent asbestos fibers from escaping the work area 3 / 4

• To eliminate all asbestos fibers instantly
• To store asbestos materials
• To prevent asbestos fibers from escaping the work area

Rationale: Negative pressure enclosures maintain air pressure lower

than surrounding areas, containing asbestos fibers during abatement.

• HEPA filters are designed to remove particles of what size?
• 0.3 microns or larger
• 5 microns or larger
• 10 microns or larger
• 50 microns or larger
• 0.3 microns or larger

Rationale: HEPA filters capture 99.97% of particles 0.3 microns or

larger, effectively trapping asbestos fibers.

• Which of the following asbestos types is considered most hazardous?
• Chrysotile
• Amosite
• Tremolite
• Actinolite
• Amosite

Rationale: Amosite (brown asbestos) has a higher biopersistence and

is associated with greater health risks compared to other types.

• / 4