AR AB Asbestos Contractor Exam
Questions and Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
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1. What is asbestos?
A. A synthetic plastic insulation material
B. A naturally occurring group of fibrous silicate minerals
C. A petroleum-based roofing compound
D. A manufactured glass-fiber product
Correct Answer: B. A naturally occurring group of fibrous silicate
minerals
Rationale: Asbestos refers to a group of naturally occurring fibrous
silicate minerals historically used in construction because of their heat
resistance, durability, and insulating properties. The principal
commercial varieties include chrysotile, amosite, crocidolite, tremolite,
,actinolite, and anthophyllite. Their microscopic fibers can become
airborne when disturbed and may cause serious respiratory diseases.
2. Which type of asbestos is commonly called white asbestos?
A. Amosite
B. Crocidolite
C. Chrysotile
D. Tremolite
Correct Answer: C. Chrysotile
Rationale: Chrysotile is commonly known as white asbestos and belongs
to the serpentine mineral group. Its fibers are generally curly or
serpentine in structure. Although its mineral structure differs from that
of amphibole asbestos, chrysotile is still a carcinogenic substance and
must be handled using appropriate asbestos-control procedures.
3. Which asbestos mineral is commonly known as brown asbestos?
A. Chrysotile
B. Amosite
C. Crocidolite
D. Actinolite
,Correct Answer: B. Amosite
Rationale: Amosite is commonly called brown asbestos and is an
amphibole mineral. It was frequently used in thermal insulation,
insulating boards, and other building products. Like other asbestos
types, amosite can release hazardous airborne fibers when disturbed,
cut, sanded, or improperly removed.
4. Which asbestos-containing material is generally considered friable?
A. Intact asbestos cement siding
B. Intact vinyl floor tile
C. Loose, deteriorated asbestos pipe insulation
D. Undamaged asbestos-containing roofing felt
Correct Answer: C. Loose, deteriorated asbestos pipe insulation
Rationale: Friable asbestos-containing material can be crumbled,
pulverized, or reduced to powder by hand pressure when dry.
Deteriorated pipe insulation is a typical example because its fibers may
be released easily. Nonfriable materials, such as intact cement products
or vinyl floor tiles, generally have asbestos fibers bound within a solid
matrix, although damage or aggressive work can still create exposure.
, 5. What is the primary health hazard associated with inhaling airborne
asbestos fibers?
A. Immediate skin irritation
B. Acute dehydration
C. Long-term respiratory disease and cancer
D. Temporary hearing loss
Correct Answer: C. Long-term respiratory disease and cancer
Rationale: Inhaled asbestos fibers can become lodged in the lungs and
other tissues. Exposure is associated with asbestosis, lung cancer, and
mesothelioma. These diseases often have long latency periods, meaning
symptoms may not appear until many years after exposure. Preventing
inhalation is therefore essential even when workers feel no immediate
effects.
6. Which disease is characterized by scarring of lung tissue caused by
asbestos exposure?
A. Silicosis
B. Asbestosis
C. Emphysema
D. Tuberculosis
Questions and Correct Answers (Verified
Answers) Plus Rationale 2027 Q&A|
Instant Download Pdf
1. What is asbestos?
A. A synthetic plastic insulation material
B. A naturally occurring group of fibrous silicate minerals
C. A petroleum-based roofing compound
D. A manufactured glass-fiber product
Correct Answer: B. A naturally occurring group of fibrous silicate
minerals
Rationale: Asbestos refers to a group of naturally occurring fibrous
silicate minerals historically used in construction because of their heat
resistance, durability, and insulating properties. The principal
commercial varieties include chrysotile, amosite, crocidolite, tremolite,
,actinolite, and anthophyllite. Their microscopic fibers can become
airborne when disturbed and may cause serious respiratory diseases.
2. Which type of asbestos is commonly called white asbestos?
A. Amosite
B. Crocidolite
C. Chrysotile
D. Tremolite
Correct Answer: C. Chrysotile
Rationale: Chrysotile is commonly known as white asbestos and belongs
to the serpentine mineral group. Its fibers are generally curly or
serpentine in structure. Although its mineral structure differs from that
of amphibole asbestos, chrysotile is still a carcinogenic substance and
must be handled using appropriate asbestos-control procedures.
3. Which asbestos mineral is commonly known as brown asbestos?
A. Chrysotile
B. Amosite
C. Crocidolite
D. Actinolite
,Correct Answer: B. Amosite
Rationale: Amosite is commonly called brown asbestos and is an
amphibole mineral. It was frequently used in thermal insulation,
insulating boards, and other building products. Like other asbestos
types, amosite can release hazardous airborne fibers when disturbed,
cut, sanded, or improperly removed.
4. Which asbestos-containing material is generally considered friable?
A. Intact asbestos cement siding
B. Intact vinyl floor tile
C. Loose, deteriorated asbestos pipe insulation
D. Undamaged asbestos-containing roofing felt
Correct Answer: C. Loose, deteriorated asbestos pipe insulation
Rationale: Friable asbestos-containing material can be crumbled,
pulverized, or reduced to powder by hand pressure when dry.
Deteriorated pipe insulation is a typical example because its fibers may
be released easily. Nonfriable materials, such as intact cement products
or vinyl floor tiles, generally have asbestos fibers bound within a solid
matrix, although damage or aggressive work can still create exposure.
, 5. What is the primary health hazard associated with inhaling airborne
asbestos fibers?
A. Immediate skin irritation
B. Acute dehydration
C. Long-term respiratory disease and cancer
D. Temporary hearing loss
Correct Answer: C. Long-term respiratory disease and cancer
Rationale: Inhaled asbestos fibers can become lodged in the lungs and
other tissues. Exposure is associated with asbestosis, lung cancer, and
mesothelioma. These diseases often have long latency periods, meaning
symptoms may not appear until many years after exposure. Preventing
inhalation is therefore essential even when workers feel no immediate
effects.
6. Which disease is characterized by scarring of lung tissue caused by
asbestos exposure?
A. Silicosis
B. Asbestosis
C. Emphysema
D. Tuberculosis
