ASB 111 – Asbestos SurveyingExam
Questions With Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is asbestos primarily classified as?
A. Synthetic polymer
B. Naturally occurring mineral fiber
C. Organic compound
D. Metal alloy
Answer: B
Rationale: Asbestos is a naturally occurring silicate mineral
composed of fibrous crystals that are resistant to heat,
electricity, and chemical damage.
2. Which asbestos type is considered the most commonly used
worldwide?
A. Amosite
B. Crocidolite
C. Chrysotile
D. Tremolite
,Answer: C
Rationale: Chrysotile (white asbestos) accounts for the
majority of historical commercial use due to its flexibility and
heat resistance.
3. The most dangerous form of asbestos is:
A. Chrysotile
B. Amosite
C. Crocidolite
D. Anthophyllite
Answer: C
Rationale: Crocidolite (blue asbestos) has the sharpest fibers
and is strongly associated with mesothelioma.
4. Mesothelioma primarily affects which organ?
A. Liver
B. Lungs
C. Heart
D. Kidneys
Answer: B
Rationale: Mesothelioma is a cancer of the pleural lining of
the lungs caused by asbestos exposure.
,5. Asbestos becomes most hazardous when:
A. Painted over
B. Left undisturbed
C. Airborne and friable
D. Wet and sealed
Answer: C
Rationale: Airborne, friable asbestos releases fibers easily,
increasing inhalation risk.
6. “Friable asbestos” means:
A. Hard and sealed material
B. Easily crumbled by hand pressure
C. Chemically treated asbestos
D. Wet asbestos material
Answer: B
Rationale: Friable materials can be crumbled or reduced to
powder by hand pressure, releasing fibers.
7. Which is a common asbestos-containing material (ACM)?
A. Glass
B. Vinyl flooring
, C. Rubber insulation only
D. Aluminum sheets
Answer: B
Rationale: Vinyl floor tiles often historically contained asbestos
for durability and heat resistance.
8. The main route of asbestos exposure is:
A. Skin absorption
B. Ingestion
C. Inhalation
D. Injection
Answer: C
Rationale: Inhalation of airborne fibers is the primary
exposure route causing lung disease.
9. Which profession is most at risk during building surveys?
A. Accountants
B. Asbestos surveyors
C. Retail workers
D. Farmers
Questions With Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is asbestos primarily classified as?
A. Synthetic polymer
B. Naturally occurring mineral fiber
C. Organic compound
D. Metal alloy
Answer: B
Rationale: Asbestos is a naturally occurring silicate mineral
composed of fibrous crystals that are resistant to heat,
electricity, and chemical damage.
2. Which asbestos type is considered the most commonly used
worldwide?
A. Amosite
B. Crocidolite
C. Chrysotile
D. Tremolite
,Answer: C
Rationale: Chrysotile (white asbestos) accounts for the
majority of historical commercial use due to its flexibility and
heat resistance.
3. The most dangerous form of asbestos is:
A. Chrysotile
B. Amosite
C. Crocidolite
D. Anthophyllite
Answer: C
Rationale: Crocidolite (blue asbestos) has the sharpest fibers
and is strongly associated with mesothelioma.
4. Mesothelioma primarily affects which organ?
A. Liver
B. Lungs
C. Heart
D. Kidneys
Answer: B
Rationale: Mesothelioma is a cancer of the pleural lining of
the lungs caused by asbestos exposure.
,5. Asbestos becomes most hazardous when:
A. Painted over
B. Left undisturbed
C. Airborne and friable
D. Wet and sealed
Answer: C
Rationale: Airborne, friable asbestos releases fibers easily,
increasing inhalation risk.
6. “Friable asbestos” means:
A. Hard and sealed material
B. Easily crumbled by hand pressure
C. Chemically treated asbestos
D. Wet asbestos material
Answer: B
Rationale: Friable materials can be crumbled or reduced to
powder by hand pressure, releasing fibers.
7. Which is a common asbestos-containing material (ACM)?
A. Glass
B. Vinyl flooring
, C. Rubber insulation only
D. Aluminum sheets
Answer: B
Rationale: Vinyl floor tiles often historically contained asbestos
for durability and heat resistance.
8. The main route of asbestos exposure is:
A. Skin absorption
B. Ingestion
C. Inhalation
D. Injection
Answer: C
Rationale: Inhalation of airborne fibers is the primary
exposure route causing lung disease.
9. Which profession is most at risk during building surveys?
A. Accountants
B. Asbestos surveyors
C. Retail workers
D. Farmers
