Legislation / Regulatory Modules L1 –
Asbestos Properties & Health Effects
Exam Questions With Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is asbestos?
A. A synthetic insulation material
B. A group of naturally occurring fibrous minerals
C. A manufactured ceramic fiber
D. A radioactive mineral
Correct Answer: B. A group of naturally occurring fibrous
minerals
Rationale: Asbestos refers to a family of naturally occurring
silicate minerals that form long, thin, durable fibers. These
fibers were widely used in construction and industrial products
because of their strength and resistance to heat and
chemicals.
,2. Which property contributed most to the widespread
industrial use of asbestos?
A. Solubility in water
B. Magnetic properties
C. Heat resistance
D. Electrical conductivity
Correct Answer: C. Heat resistance
Rationale: Asbestos was extensively used because it is highly
resistant to heat, fire, and many chemicals, making it valuable
for insulation and fireproofing applications.
3. How many mineral types are commonly classified as
asbestos?
A. Two
B. Four
C. Six
D. Eight
Correct Answer: C. Six
Rationale: Six minerals are regulated as asbestos: chrysotile,
amosite, crocidolite, tremolite, anthophyllite, and actinolite.
,4. Which asbestos type belongs to the serpentine group?
A. Crocidolite
B. Amosite
C. Chrysotile
D. Tremolite
Correct Answer: C. Chrysotile
Rationale: Chrysotile, commonly called white asbestos, is the
only asbestos mineral in the serpentine family and accounts
for most historical asbestos use worldwide.
5. Which asbestos type is commonly known as blue asbestos?
A. Chrysotile
B. Crocidolite
C. Amosite
D. Anthophyllite
Correct Answer: B. Crocidolite
Rationale: Crocidolite is known as blue asbestos and is
considered one of the most hazardous forms due to its thin,
needle-like fibers and high biopersistence.
, 6. Which asbestos type is commonly known as brown
asbestos?
A. Amosite
B. Tremolite
C. Actinolite
D. Chrysotile
Correct Answer: A. Amosite
Rationale: Amosite, or brown asbestos, was widely used in
insulation products and presents significant health risks when
fibers become airborne.
7. What characteristic makes asbestos fibers particularly
hazardous when disturbed?
A. Their color
B. Their ability to dissolve rapidly
C. Their microscopic size
D. Their metallic content
Correct Answer: C. Their microscopic size
Asbestos Properties & Health Effects
Exam Questions With Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
1. What is asbestos?
A. A synthetic insulation material
B. A group of naturally occurring fibrous minerals
C. A manufactured ceramic fiber
D. A radioactive mineral
Correct Answer: B. A group of naturally occurring fibrous
minerals
Rationale: Asbestos refers to a family of naturally occurring
silicate minerals that form long, thin, durable fibers. These
fibers were widely used in construction and industrial products
because of their strength and resistance to heat and
chemicals.
,2. Which property contributed most to the widespread
industrial use of asbestos?
A. Solubility in water
B. Magnetic properties
C. Heat resistance
D. Electrical conductivity
Correct Answer: C. Heat resistance
Rationale: Asbestos was extensively used because it is highly
resistant to heat, fire, and many chemicals, making it valuable
for insulation and fireproofing applications.
3. How many mineral types are commonly classified as
asbestos?
A. Two
B. Four
C. Six
D. Eight
Correct Answer: C. Six
Rationale: Six minerals are regulated as asbestos: chrysotile,
amosite, crocidolite, tremolite, anthophyllite, and actinolite.
,4. Which asbestos type belongs to the serpentine group?
A. Crocidolite
B. Amosite
C. Chrysotile
D. Tremolite
Correct Answer: C. Chrysotile
Rationale: Chrysotile, commonly called white asbestos, is the
only asbestos mineral in the serpentine family and accounts
for most historical asbestos use worldwide.
5. Which asbestos type is commonly known as blue asbestos?
A. Chrysotile
B. Crocidolite
C. Amosite
D. Anthophyllite
Correct Answer: B. Crocidolite
Rationale: Crocidolite is known as blue asbestos and is
considered one of the most hazardous forms due to its thin,
needle-like fibers and high biopersistence.
, 6. Which asbestos type is commonly known as brown
asbestos?
A. Amosite
B. Tremolite
C. Actinolite
D. Chrysotile
Correct Answer: A. Amosite
Rationale: Amosite, or brown asbestos, was widely used in
insulation products and presents significant health risks when
fibers become airborne.
7. What characteristic makes asbestos fibers particularly
hazardous when disturbed?
A. Their color
B. Their ability to dissolve rapidly
C. Their microscopic size
D. Their metallic content
Correct Answer: C. Their microscopic size
