CLASS III – REPAIR AND MAINTENANCE
WORK INVOLVING ASBESTOS
DISTURBANCE Exam Questions With
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download
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1. What is the primary risk associated with disturbing
asbestos-containing materials during maintenance work?
A. Noise exposure
B. Heat exposure
C. Release of airborne asbestos fibers
D. Electrical shock
Answer: C
Rationale: The main hazard of asbestos disturbance is the
release of microscopic fibers into the air, which can be
inhaled and cause serious diseases.
2. Class III asbestos work typically involves:
A. Large-scale asbestos removal
, B. Repair and maintenance tasks likely to disturb asbestos
C. Manufacturing asbestos products
D. Disposal of asbestos waste only
Answer: B
Rationale: Class III work refers to maintenance or repair
activities where asbestos may be disturbed but not fully
removed.
3. Which respiratory protection is commonly required for
Class III asbestos work?
A. Surgical mask
B. Dust cloth
C. Approved respirator with proper filtration
D. No respiratory protection is needed
Answer: C
Rationale: Only certified respirators capable of filtering
asbestos fibers are suitable for protection.
4. Why is wetting asbestos-containing materials important
during disturbance?
A. It makes the material heavier
B. It reduces fiber release into the air
C. It increases visibility
D. It strengthens the material
, Answer: B
Rationale: Wetting suppresses dust and reduces airborne
fiber release.
5. What is the first step before starting any Class III asbestos
work?
A. Begin demolition
B. Notify supervisor and confirm asbestos presence
C. Remove PPE
D. Start dry sweeping
Answer: B
Rationale: Proper identification and authorization must
occur before any work begins.
6. Which of the following is NOT a control measure for
asbestos exposure?
A. Wet methods
B. HEPA vacuuming
C. Dry sweeping asbestos dust
D. Containment barriers
Answer: C
Rationale: Dry sweeping can release dangerous fibers
into the air and is prohibited.
, 7. What type of vacuum should be used for asbestos
cleanup?
A. Household vacuum
B. Industrial blower
C. HEPA-filtered vacuum
D. No vacuum should be used
Answer: C
Rationale: HEPA filters trap microscopic asbestos fibers
safely.
8. What is the purpose of an asbestos containment area?
A. To store tools
B. To prevent fiber spread
C. To increase airflow
D. To dry materials
Answer: B
Rationale: Containment limits the spread of hazardous
fibers to surrounding areas.
9. Which PPE is essential in addition to a respirator?
A. Flip-flops
B. Disposable protective coveralls
C. Jewelry
D. Shorts
WORK INVOLVING ASBESTOS
DISTURBANCE Exam Questions With
Correct Answers (Verified Answers) Plus
Rationales 2026 Q&A | Instant Download
1. What is the primary risk associated with disturbing
asbestos-containing materials during maintenance work?
A. Noise exposure
B. Heat exposure
C. Release of airborne asbestos fibers
D. Electrical shock
Answer: C
Rationale: The main hazard of asbestos disturbance is the
release of microscopic fibers into the air, which can be
inhaled and cause serious diseases.
2. Class III asbestos work typically involves:
A. Large-scale asbestos removal
, B. Repair and maintenance tasks likely to disturb asbestos
C. Manufacturing asbestos products
D. Disposal of asbestos waste only
Answer: B
Rationale: Class III work refers to maintenance or repair
activities where asbestos may be disturbed but not fully
removed.
3. Which respiratory protection is commonly required for
Class III asbestos work?
A. Surgical mask
B. Dust cloth
C. Approved respirator with proper filtration
D. No respiratory protection is needed
Answer: C
Rationale: Only certified respirators capable of filtering
asbestos fibers are suitable for protection.
4. Why is wetting asbestos-containing materials important
during disturbance?
A. It makes the material heavier
B. It reduces fiber release into the air
C. It increases visibility
D. It strengthens the material
, Answer: B
Rationale: Wetting suppresses dust and reduces airborne
fiber release.
5. What is the first step before starting any Class III asbestos
work?
A. Begin demolition
B. Notify supervisor and confirm asbestos presence
C. Remove PPE
D. Start dry sweeping
Answer: B
Rationale: Proper identification and authorization must
occur before any work begins.
6. Which of the following is NOT a control measure for
asbestos exposure?
A. Wet methods
B. HEPA vacuuming
C. Dry sweeping asbestos dust
D. Containment barriers
Answer: C
Rationale: Dry sweeping can release dangerous fibers
into the air and is prohibited.
, 7. What type of vacuum should be used for asbestos
cleanup?
A. Household vacuum
B. Industrial blower
C. HEPA-filtered vacuum
D. No vacuum should be used
Answer: C
Rationale: HEPA filters trap microscopic asbestos fibers
safely.
8. What is the purpose of an asbestos containment area?
A. To store tools
B. To prevent fiber spread
C. To increase airflow
D. To dry materials
Answer: B
Rationale: Containment limits the spread of hazardous
fibers to surrounding areas.
9. Which PPE is essential in addition to a respirator?
A. Flip-flops
B. Disposable protective coveralls
C. Jewelry
D. Shorts
