Co Demolition Contractor Exam
Questions And Correct Answers
(Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What is the primary purpose of a pre-demolition survey?
A. To estimate the project cost
B. To identify hazardous materials
C. To schedule workers
D. To order equipment
B. To identify hazardous materials
Rationale: A pre-demolition survey ensures all hazardous materials
such as asbestos or lead are identified to prevent health risks.
2. Which federal agency regulates asbestos removal during demolition?
A. OSHA
B. EPA
C. DOT
D. FEMA
B. EPA
Rationale: The Environmental Protection Agency sets regulations for
the proper handling and disposal of asbestos to protect public health.
3. Before demolition begins, what is the first step contractors must take?
A. Obtain a demolition permit
B. Begin structural tearing
C. Call utility companies to disconnect services
D. Conduct employee training
C. Call utility companies to disconnect services
Rationale: Ensuring gas, water, and electricity are disconnected
prevents accidents and is legally required.
4. What type of demolition is typically used for selective removal of
interior components?
, A. Implosion
B. Mechanical demolition
C. Selective demolition
D. Deconstruction
C. Selective demolition
Rationale: Selective demolition targets specific parts of a structure
while leaving the remainder intact, often for renovations.
5. Which PPE is essential when demolishing structures with airborne
dust?
A. Hard hat only
B. Steel-toed boots only
C. Respiratory protection
D. Safety glasses only
C. Respiratory protection
Rationale: Respirators protect workers from inhaling dust, asbestos,
or other hazardous particles during demolition.
6. What is the main hazard associated with explosive demolition?
A. Noise
B. Flying debris and structural collapse
C. Dust
D. Slow project progress
B. Flying debris and structural collapse
Rationale: Explosive demolition involves controlled explosions that
can send debris outward; safety measures must prevent injury.
7. During demolition, scaffolding is required when:
A. Demolishing walls over 10 feet
B. Using hand tools only
C. Removing interior furniture
D. Working underground
A. Demolishing walls over 10 feet
Rationale: OSHA requires scaffolding or fall protection when
workers operate at heights above certain thresholds.
8. Which type of demolition minimizes environmental impact by
salvaging materials?
A. Implosive demolition
B. Mechanical demolition
C. Deconstruction
, D. Explosive demolition
C. Deconstruction
Rationale: Deconstruction is the careful dismantling of buildings to
maximize material reuse and recycling.
9. How often should demolition equipment be inspected?
A. Weekly
B. Daily before use
C. Monthly
D. Only after accidents
B. Daily before use
Rationale: Daily inspections detect mechanical failures and prevent
equipment-related accidents.
10. What is the purpose of a demolition plan?
A. To organize the sequence, methods, and safety procedures
B. To advertise the demolition project
C. To train employees only
D. To comply with tax regulations
A. To organize the sequence, methods, and safety procedures
Rationale: A demolition plan ensures efficiency and safety by
outlining the step-by-step process.
11. Which material commonly requires special disposal procedures
during demolition?
A. Wood
B. Concrete
C. Asbestos
D. Brick
C. Asbestos
Rationale: Asbestos fibers are hazardous when airborne, requiring
specific containment and disposal.
12. What is the minimum distance pedestrians should be kept from a
demolition site?
A. 5 feet
B. 20 feet
C. 50 feet
D. 100 feet
C. 50 feet
Questions And Correct Answers
(Verified Answers) Plus Rationales
2026 Q&A | Instant Download Pdf
1. What is the primary purpose of a pre-demolition survey?
A. To estimate the project cost
B. To identify hazardous materials
C. To schedule workers
D. To order equipment
B. To identify hazardous materials
Rationale: A pre-demolition survey ensures all hazardous materials
such as asbestos or lead are identified to prevent health risks.
2. Which federal agency regulates asbestos removal during demolition?
A. OSHA
B. EPA
C. DOT
D. FEMA
B. EPA
Rationale: The Environmental Protection Agency sets regulations for
the proper handling and disposal of asbestos to protect public health.
3. Before demolition begins, what is the first step contractors must take?
A. Obtain a demolition permit
B. Begin structural tearing
C. Call utility companies to disconnect services
D. Conduct employee training
C. Call utility companies to disconnect services
Rationale: Ensuring gas, water, and electricity are disconnected
prevents accidents and is legally required.
4. What type of demolition is typically used for selective removal of
interior components?
, A. Implosion
B. Mechanical demolition
C. Selective demolition
D. Deconstruction
C. Selective demolition
Rationale: Selective demolition targets specific parts of a structure
while leaving the remainder intact, often for renovations.
5. Which PPE is essential when demolishing structures with airborne
dust?
A. Hard hat only
B. Steel-toed boots only
C. Respiratory protection
D. Safety glasses only
C. Respiratory protection
Rationale: Respirators protect workers from inhaling dust, asbestos,
or other hazardous particles during demolition.
6. What is the main hazard associated with explosive demolition?
A. Noise
B. Flying debris and structural collapse
C. Dust
D. Slow project progress
B. Flying debris and structural collapse
Rationale: Explosive demolition involves controlled explosions that
can send debris outward; safety measures must prevent injury.
7. During demolition, scaffolding is required when:
A. Demolishing walls over 10 feet
B. Using hand tools only
C. Removing interior furniture
D. Working underground
A. Demolishing walls over 10 feet
Rationale: OSHA requires scaffolding or fall protection when
workers operate at heights above certain thresholds.
8. Which type of demolition minimizes environmental impact by
salvaging materials?
A. Implosive demolition
B. Mechanical demolition
C. Deconstruction
, D. Explosive demolition
C. Deconstruction
Rationale: Deconstruction is the careful dismantling of buildings to
maximize material reuse and recycling.
9. How often should demolition equipment be inspected?
A. Weekly
B. Daily before use
C. Monthly
D. Only after accidents
B. Daily before use
Rationale: Daily inspections detect mechanical failures and prevent
equipment-related accidents.
10. What is the purpose of a demolition plan?
A. To organize the sequence, methods, and safety procedures
B. To advertise the demolition project
C. To train employees only
D. To comply with tax regulations
A. To organize the sequence, methods, and safety procedures
Rationale: A demolition plan ensures efficiency and safety by
outlining the step-by-step process.
11. Which material commonly requires special disposal procedures
during demolition?
A. Wood
B. Concrete
C. Asbestos
D. Brick
C. Asbestos
Rationale: Asbestos fibers are hazardous when airborne, requiring
specific containment and disposal.
12. What is the minimum distance pedestrians should be kept from a
demolition site?
A. 5 feet
B. 20 feet
C. 50 feet
D. 100 feet
C. 50 feet
