CERTIFICATION EXAM QUESTIONS AND CORRECT
ANSWERS (VERIFIED ANSWERS) Q&A 2026
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1. Which document is typically required before beginning any
demolition work?
A. Plumbing blueprint
B. Demolition permit
C. Electrical schematic
D. Soil test report
Rationale: A demolition permit ensures legal authorization and
compliance with local regulations before structural removal
begins.
Correct Answer: B. Demolition permit
2. What is the primary purpose of a pre-demolition survey?
A. Estimate project profit
B. Identify hazardous materials and structural risks
C. Select paint colors for rebuild
D. Determine worker wages
Rationale: A pre-demolition survey identifies hazards such as
asbestos, structural instability, and utilities.
,Correct Answer: B. Identify hazardous materials and structural
risks
3. Which material is most commonly regulated as a hazardous
substance in demolition projects?
A. Concrete
B. Asbestos
C. Wood
D. Glass
Rationale: Asbestos exposure poses serious health risks and is
strictly regulated during demolition.
Correct Answer: B. Asbestos
4. What is the first step before demolishing a structure with
utility connections?
A. Remove windows
B. Disconnect all utilities
C. Start excavation
D. Break interior walls
Rationale: Utilities such as gas, water, and electricity must be
safely disconnected to prevent accidents.
Correct Answer: B. Disconnect all utilities
5. Which PPE is most essential during demolition work?
,A. Sunglasses only
B. Steel-toe boots, hard hat, gloves, and eye protection
C. Sandals and helmet
D. Lightweight jacket
Rationale: Full PPE protects workers from debris, falling
objects, and hazardous materials.
Correct Answer: B. Steel-toe boots, hard hat, gloves, and eye
protection
6. What is the primary goal of a demolition plan?
A. Increase project cost
B. Ensure safe and controlled removal of structures
C. Delay project completion
D. Replace construction design
Rationale: A demolition plan ensures safety, sequencing, and
compliance.
Correct Answer: B. Ensure safe and controlled removal of
structures
7. Which method uses explosives for controlled building
removal?
A. Manual demolition
B. Mechanical demolition
, C. Implosion
D. Deconstruction
Rationale: Implosion uses carefully placed explosives to bring
down structures efficiently.
Correct Answer: C. Implosion
8. What is the purpose of shoring in demolition work?
A. Decorating the site
B. Supporting unstable structures
C. Painting walls
D. Increasing demolition speed
Rationale: Shoring prevents collapse and protects workers
during partial demolition.
Correct Answer: B. Supporting unstable structures
9. Which environmental concern is most associated with
demolition dust?
A. Noise pollution
B. Air quality contamination
C. Water salinity
D. Soil fertility increase
Rationale: Dust can contain hazardous particles affecting air
quality and health.
Correct Answer: B. Air quality contamination