Maryland Asbestos Worker Certification
Exam Practice Questions & [Verified
Answers], Plus Explained
Rationales|2026 Latest Update| Instant
Download PDF
1. The primary purpose of an asbestos worker certification program
is to ensure that workers:
A. Can identify every type of building material without training
B. Can safely perform asbestos-related work while minimizing
exposure risks
C. Can remove all hazardous materials from any building
D. Can replace asbestos-containing materials without supervision
Rationale: Certified asbestos workers receive specialized training to
perform asbestos abatement activities safely. The goal is to reduce
airborne asbestos fibers, protect workers and occupants, and comply
with regulatory requirements.
2. Asbestos is considered hazardous primarily because inhalation of
asbestos fibers can cause:
A. Immediate allergic reactions only
B. Short-term skin irritation
C. Serious respiratory diseases that may develop years after exposure
D. Temporary hearing loss
1|Page
,Rationale: Asbestos exposure is associated with diseases such as
asbestosis, lung cancer, and mesothelioma. These illnesses often have
long latency periods, meaning symptoms may appear decades after
exposure.
3. Which federal agency regulates worker protection requirements
for asbestos exposure in the workplace?
A. EPA
B. OSHA
C. DOT
D. FDA
Rationale: OSHA establishes workplace asbestos exposure standards,
including permissible exposure limits, respiratory protection,
protective equipment, and work practices.
4. A worker discovers damaged suspect asbestos-containing material
during renovation. The worker should first:
A. Break off a sample for personal testing
B. Sweep the debris immediately
C. Stop work and notify the supervisor or competent person
D. Remove the material using a vacuum
Rationale: Workers must not disturb suspect materials without proper
authorization and procedures. Stopping work prevents unnecessary
fiber release and allows proper evaluation.
5. Which type of asbestos-containing material is generally
considered the highest risk for fiber release?
2|Page
,A. Non-friable floor tile
B. Intact cement board
C. Friable asbestos insulation
D. Sealed roofing material
Rationale: Friable materials can be crumbled, pulverized, or reduced
to powder by hand pressure, making them more likely to release
airborne fibers.
6. Friable asbestos material is defined as material that:
A. Contains no asbestos fibers
B. Is manufactured after 2000
C. Can be crumbled, pulverized, or reduced to powder by hand
pressure
D. Has been painted
Rationale: Friability is based on the physical ability of the material to
release fibers when handled. Friable materials require strict controls
during abatement.
7. The most important method for preventing asbestos exposure
during removal is:
A. Working faster
B. Wearing cotton gloves
C. Preventing asbestos fibers from becoming airborne
D. Keeping windows open
Rationale: The main hazard is inhalation of airborne fibers. Proper
containment, wet methods, and engineering controls reduce airborne
contamination.
3|Page
, 8. Before beginning asbestos abatement work, workers must
understand:
A. Only the building age
B. Only the supervisor’s name
C. The work practices, hazards, controls, and emergency procedures
D. The building owner’s financial information
Rationale: Training ensures workers understand how to perform tasks
safely, respond to problems, and follow regulatory requirements.
9. Which respirator is commonly used during asbestos removal
when properly selected and approved?
A. Surgical mask
B. Dust mask from a hardware store
C. NIOSH-approved respirator appropriate for the exposure level
D. Cloth face covering
Rationale: Respirators used for asbestos work must be NIOSH-
approved and selected according to exposure levels and regulatory
requirements.
10. A negative air machine is used during asbestos containment
to:
A. Increase room temperature
B. Remove moisture from materials
C. Maintain negative pressure and prevent contaminated air from
escaping
D. Replace respirators
4|Page
Exam Practice Questions & [Verified
Answers], Plus Explained
Rationales|2026 Latest Update| Instant
Download PDF
1. The primary purpose of an asbestos worker certification program
is to ensure that workers:
A. Can identify every type of building material without training
B. Can safely perform asbestos-related work while minimizing
exposure risks
C. Can remove all hazardous materials from any building
D. Can replace asbestos-containing materials without supervision
Rationale: Certified asbestos workers receive specialized training to
perform asbestos abatement activities safely. The goal is to reduce
airborne asbestos fibers, protect workers and occupants, and comply
with regulatory requirements.
2. Asbestos is considered hazardous primarily because inhalation of
asbestos fibers can cause:
A. Immediate allergic reactions only
B. Short-term skin irritation
C. Serious respiratory diseases that may develop years after exposure
D. Temporary hearing loss
1|Page
,Rationale: Asbestos exposure is associated with diseases such as
asbestosis, lung cancer, and mesothelioma. These illnesses often have
long latency periods, meaning symptoms may appear decades after
exposure.
3. Which federal agency regulates worker protection requirements
for asbestos exposure in the workplace?
A. EPA
B. OSHA
C. DOT
D. FDA
Rationale: OSHA establishes workplace asbestos exposure standards,
including permissible exposure limits, respiratory protection,
protective equipment, and work practices.
4. A worker discovers damaged suspect asbestos-containing material
during renovation. The worker should first:
A. Break off a sample for personal testing
B. Sweep the debris immediately
C. Stop work and notify the supervisor or competent person
D. Remove the material using a vacuum
Rationale: Workers must not disturb suspect materials without proper
authorization and procedures. Stopping work prevents unnecessary
fiber release and allows proper evaluation.
5. Which type of asbestos-containing material is generally
considered the highest risk for fiber release?
2|Page
,A. Non-friable floor tile
B. Intact cement board
C. Friable asbestos insulation
D. Sealed roofing material
Rationale: Friable materials can be crumbled, pulverized, or reduced
to powder by hand pressure, making them more likely to release
airborne fibers.
6. Friable asbestos material is defined as material that:
A. Contains no asbestos fibers
B. Is manufactured after 2000
C. Can be crumbled, pulverized, or reduced to powder by hand
pressure
D. Has been painted
Rationale: Friability is based on the physical ability of the material to
release fibers when handled. Friable materials require strict controls
during abatement.
7. The most important method for preventing asbestos exposure
during removal is:
A. Working faster
B. Wearing cotton gloves
C. Preventing asbestos fibers from becoming airborne
D. Keeping windows open
Rationale: The main hazard is inhalation of airborne fibers. Proper
containment, wet methods, and engineering controls reduce airborne
contamination.
3|Page
, 8. Before beginning asbestos abatement work, workers must
understand:
A. Only the building age
B. Only the supervisor’s name
C. The work practices, hazards, controls, and emergency procedures
D. The building owner’s financial information
Rationale: Training ensures workers understand how to perform tasks
safely, respond to problems, and follow regulatory requirements.
9. Which respirator is commonly used during asbestos removal
when properly selected and approved?
A. Surgical mask
B. Dust mask from a hardware store
C. NIOSH-approved respirator appropriate for the exposure level
D. Cloth face covering
Rationale: Respirators used for asbestos work must be NIOSH-
approved and selected according to exposure levels and regulatory
requirements.
10. A negative air machine is used during asbestos containment
to:
A. Increase room temperature
B. Remove moisture from materials
C. Maintain negative pressure and prevent contaminated air from
escaping
D. Replace respirators
4|Page
