SCAFFOLDING CERTIFICATION EXAM
Questions with Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
SCAFFOLD BASICS & TYPES
1. What is the primary purpose of scaffolding?
A. Material storage
B. Temporary elevated work platform
C. Permanent structure
D. Electrical grounding
Answer: B. Temporary elevated work platform
Rationale: Scaffolding provides safe access to elevated work areas.
2. Case Scenario – Workers are climbing stacked materials instead of
scaffolding. What is the main hazard?
A. Efficiency gain
B. Fall hazard due to unstable elevation method
C. Improved access
D. Better stability
Answer: B. Fall hazard due to unstable elevation method
Rationale: Improvised climbing is unsafe and not OSHA-compliant.
3. What type of scaffold is supported by poles, frames, or uprights?
,A. Suspended scaffold
B. Supported scaffold
C. Aerial lift
D. Rope ladder scaffold
Answer: B. Supported scaffold
Rationale: Built from ground-supported structures.
4. What is a suspended scaffold?
A. Ground-supported platform
B. Platform suspended by ropes or cables
C. Fixed ladder system
D. Rolling tower
Answer: B. Platform suspended by ropes or cables
Rationale: Used for high-rise exterior work.
5. Case Scenario – Scaffold sways excessively during use. Likely cause?
A. Proper bracing
B. Improper anchorage or lack of stability
C. Good design
D. Correct load
Answer: B. Improper anchorage or lack of stability
Rationale: Movement indicates structural instability.
🔷 OSHA REQUIREMENTS & LOAD RULES
6. What is the OSHA maximum load classification for a light-duty scaffold?
A. 10 psf
B. 25 psf
, C. 75 psf
D. 100 psf
Answer: B. 25 psf
Rationale: Light-duty scaffolds are designed for light materials and tools.
7. Case Scenario – Scaffold collapses under excessive materials. Cause?
A. Proper load distribution
B. Overloading beyond rated capacity
C. Correct design
D. Good inspection
Answer: B. Overloading beyond rated capacity
Rationale: Exceeding load limits causes failure.
8. What is the minimum requirement for scaffold planking overlap?
A. 6 inches
B. 12 inches
C. 24 inches
D. No overlap required
Answer: B. 12 inches
Rationale: Ensures safe board support.
9. What is the minimum width of a scaffold platform?
A. 12 inches
B. 18 inches
C. 20 inches
D. 36 inches
Answer: D. 36 inches
Rationale: OSHA requires safe working width.
Questions with Correct Answers
(Verified Answers) Plus Rationales 2026
Q&A | Instant Download Pdf
SCAFFOLD BASICS & TYPES
1. What is the primary purpose of scaffolding?
A. Material storage
B. Temporary elevated work platform
C. Permanent structure
D. Electrical grounding
Answer: B. Temporary elevated work platform
Rationale: Scaffolding provides safe access to elevated work areas.
2. Case Scenario – Workers are climbing stacked materials instead of
scaffolding. What is the main hazard?
A. Efficiency gain
B. Fall hazard due to unstable elevation method
C. Improved access
D. Better stability
Answer: B. Fall hazard due to unstable elevation method
Rationale: Improvised climbing is unsafe and not OSHA-compliant.
3. What type of scaffold is supported by poles, frames, or uprights?
,A. Suspended scaffold
B. Supported scaffold
C. Aerial lift
D. Rope ladder scaffold
Answer: B. Supported scaffold
Rationale: Built from ground-supported structures.
4. What is a suspended scaffold?
A. Ground-supported platform
B. Platform suspended by ropes or cables
C. Fixed ladder system
D. Rolling tower
Answer: B. Platform suspended by ropes or cables
Rationale: Used for high-rise exterior work.
5. Case Scenario – Scaffold sways excessively during use. Likely cause?
A. Proper bracing
B. Improper anchorage or lack of stability
C. Good design
D. Correct load
Answer: B. Improper anchorage or lack of stability
Rationale: Movement indicates structural instability.
🔷 OSHA REQUIREMENTS & LOAD RULES
6. What is the OSHA maximum load classification for a light-duty scaffold?
A. 10 psf
B. 25 psf
, C. 75 psf
D. 100 psf
Answer: B. 25 psf
Rationale: Light-duty scaffolds are designed for light materials and tools.
7. Case Scenario – Scaffold collapses under excessive materials. Cause?
A. Proper load distribution
B. Overloading beyond rated capacity
C. Correct design
D. Good inspection
Answer: B. Overloading beyond rated capacity
Rationale: Exceeding load limits causes failure.
8. What is the minimum requirement for scaffold planking overlap?
A. 6 inches
B. 12 inches
C. 24 inches
D. No overlap required
Answer: B. 12 inches
Rationale: Ensures safe board support.
9. What is the minimum width of a scaffold platform?
A. 12 inches
B. 18 inches
C. 20 inches
D. 36 inches
Answer: D. 36 inches
Rationale: OSHA requires safe working width.
