NCCER-OSHA SCAFFOLD SG EXAM 2026 |
ACTUAL 2025/2026 QUESTIONS & VERIFIED
ANSWERS | COMPLETE REVIEW
NCCER-OSHA SCAFFOLD SG EXAM 2026 | ACTUAL 2026 QUESTIONS & VERIFIED
ANSWERS
Q001 — OSHA Regulations Under OSHA 29 CFR 1926.451, what is the maximum load that a
scaffold must be capable of supporting?
A. Two times the maximum intended load B. Three times the maximum intended load C. Four
times the maximum intended load D. Five times the maximum intended load E. Ten times
the maximum intended load
RATIONALE: OSHA 29 CFR 1926.451(a)(1) requires that each scaffold and scaffold
component must be capable of supporting, without failure, its own weight and at least four times
the maximum intended load applied or transmitted to it.
Q002 — OSHA Regulations Who is defined as a 'competent person' in OSHA scaffold
standards?
A. A person with a college degree in engineering B. A person who has completed a 10-hour
OSHA course C. One who is capable of identifying existing and predictable hazards and has
authority to take corrective action D. Any supervisor on the job site E. A person with 5 or
more years of scaffold experience
RATIONALE: OSHA defines a competent person as someone capable of identifying existing
and predictable hazards in the surroundings or working conditions that are unsanitary,
hazardous, or dangerous to employees, and who has authorization to take prompt corrective
measures to eliminate them.
Q003 — OSHA Regulations Scaffolds must be erected, moved, dismantled, or altered only
under the supervision of whom?
A. A qualified person B. A competent person C. A licensed contractor D. A certified
scaffold erector E. The project engineer
, RATIONALE: OSHA 29 CFR 1926.451(f)(7) requires that scaffolds shall be erected, moved,
dismantled, or altered only under the supervision of a competent person qualified in scaffold
erection, moving, dismantling, or alteration.
Q004 — Fall Protection At what height must fall protection be provided for employees on
scaffolds?
A. 4 feet B. 6 feet C. 8 feet D. 10 feet E. 12 feet
RATIONALE: OSHA 29 CFR 1926.451(g)(1) requires fall protection for all scaffold
workers at heights of 10 feet or more above a lower level.
Q005 — Scaffold Components What is the minimum height of a toprail for a scaffold guardrail
system?
A. 32 inches B. 36 inches C. 38 inches D. 42 inches E. 48 inches
RATIONALE: OSHA 29 CFR 1926.451(g)(4)(ii) specifies that the top edge height of
toprails on supported scaffolds must be between 38 and 45 inches above the platform surface.
Q006 — Scaffold Components What is the maximum gap allowed between scaffold planks?
A. No gaps are permitted B. 1/4 inch C. 1 inch D. 2 inches E. 3 inches
RATIONALE: OSHA 29 CFR 1926.451(b)(1)(ii) states that the space between adjacent
scaffold planks shall not exceed 1 inch to prevent foot or tool hazards.
Q007 — OSHA Regulations Which OSHA standard specifically covers scaffolding in the
construction industry?
A. 29 CFR 1910.28 B. 29 CFR 1926.451 C. 29 CFR 1926.502 D. 29 CFR 1910.23 E. 29
CFR 1926.100
RATIONALE: 29 CFR 1926.451 is the primary OSHA standard that governs scaffolding in
construction.
Q008 — Scaffold Training OSHA requires that scaffold users be trained by a qualified person
in which of the following?
,A. Scaffold assembly techniques only B. Fall hazards, falling object hazards, electrical
hazards, and proper scaffold use C. Load calculations and material specifications D.
Emergency evacuation procedures only E. Basic first aid and CPR
RATIONALE: OSHA 29 CFR 1926.454(a) requires that employees be trained to recognize
hazards including fall hazards, falling object hazards, electrical hazards, and the procedures for
dealing with those hazards.
Q009 — Scaffold Capacity What is the minimum width of a scaffold platform?
A. 12 inches B. 14 inches C. 16 inches D. 18 inches E. 20 inches
RATIONALE: OSHA 29 CFR 1926.451(b)(2) requires that platforms must be at least 12
inches wide.
Q010 — Scaffold Access When is a direct access from another scaffold or structure acceptable
instead of a ladder?
A. When the scaffold is less than 10 feet high B. When the height difference between scaffold
and structure is 24 inches or less C. When the supervisor gives verbal approval D. When
there are 5 or fewer workers on the scaffold E. When the scaffold is a tube and coupler type
RATIONALE: OSHA 29 CFR 1926.451(e)(6) allows direct access when the scaffold is not
more than 14 inches horizontally and not more than 24 inches below the other surface.
Q011 — Scaffold Types Which type of scaffold is supported by rigid, load-bearing members
such as poles, legs, frames, or similar rigid support?
A. Suspended scaffold B. Aerial lift C. Supported scaffold D. Mast climber E. Boatswain's
chair
RATIONALE: A supported scaffold is one or more platforms supported by outrigger beams,
brackets, poles, legs, uprights, posts, frames, or similar rigid load-bearing members.
Q012 — Scaffold Types A two-point adjustable suspension scaffold is also known as a:
A. Bricklayer's scaffold B. Tube and coupler scaffold C. Swingstage scaffold D. Mobile
scaffold E. Pump jack scaffold
, RATIONALE: A two-point adjustable suspension scaffold, commonly called a swingstage or
swing scaffold, is suspended by two stirrups or hangers at each end.
Q013 — Scaffold Types Which scaffold type uses a single work platform supported by a pair of
brackets attached to wall jacks?
A. Tube and coupler scaffold B. Pump jack scaffold C. Frame scaffold D. Needle beam
scaffold E. Ladder jack scaffold
RATIONALE: A pump jack scaffold uses a vertical pole and a pump jack bracket to raise
and lower the working platform, most commonly used for siding and exterior finishing work.
Q014 — Scaffold Types What type of scaffold is used when work must be done on a building
face and is hung from outrigger beams extending from the roof?
A. Frame scaffold B. Suspended scaffold C. Mobile scaffold D. Bricklayers scaffold E.
Trestle scaffold
RATIONALE: A suspended scaffold is supported from above by ropes or other non-rigid
means. It is used when work must be performed on building facades and other elevated
structures.
Q015 — Scaffold Types A mobile scaffold must have casters or wheels that:
A. Are at least 6 inches in diameter B. Are locked when the scaffold is in use and workers are
on it C. Are capable of supporting four times the scaffold load D. Are made of rubber or non-
marking material only E. Have a rated capacity of at least 500 lbs each
RATIONALE: OSHA 29 CFR 1926.452(w)(6) requires that casters and wheels shall be
locked with positive wheel and/or swivel locks to prevent movement of the scaffold while
stationary.
Q016 — Scaffold Types What type of scaffold consists of a platform resting on two or more
portable sawhorse-type frames?
A. Horse scaffold B. Trestle scaffold C. Outrigger scaffold D. Float scaffold E. Interior hung
scaffold
ACTUAL 2025/2026 QUESTIONS & VERIFIED
ANSWERS | COMPLETE REVIEW
NCCER-OSHA SCAFFOLD SG EXAM 2026 | ACTUAL 2026 QUESTIONS & VERIFIED
ANSWERS
Q001 — OSHA Regulations Under OSHA 29 CFR 1926.451, what is the maximum load that a
scaffold must be capable of supporting?
A. Two times the maximum intended load B. Three times the maximum intended load C. Four
times the maximum intended load D. Five times the maximum intended load E. Ten times
the maximum intended load
RATIONALE: OSHA 29 CFR 1926.451(a)(1) requires that each scaffold and scaffold
component must be capable of supporting, without failure, its own weight and at least four times
the maximum intended load applied or transmitted to it.
Q002 — OSHA Regulations Who is defined as a 'competent person' in OSHA scaffold
standards?
A. A person with a college degree in engineering B. A person who has completed a 10-hour
OSHA course C. One who is capable of identifying existing and predictable hazards and has
authority to take corrective action D. Any supervisor on the job site E. A person with 5 or
more years of scaffold experience
RATIONALE: OSHA defines a competent person as someone capable of identifying existing
and predictable hazards in the surroundings or working conditions that are unsanitary,
hazardous, or dangerous to employees, and who has authorization to take prompt corrective
measures to eliminate them.
Q003 — OSHA Regulations Scaffolds must be erected, moved, dismantled, or altered only
under the supervision of whom?
A. A qualified person B. A competent person C. A licensed contractor D. A certified
scaffold erector E. The project engineer
, RATIONALE: OSHA 29 CFR 1926.451(f)(7) requires that scaffolds shall be erected, moved,
dismantled, or altered only under the supervision of a competent person qualified in scaffold
erection, moving, dismantling, or alteration.
Q004 — Fall Protection At what height must fall protection be provided for employees on
scaffolds?
A. 4 feet B. 6 feet C. 8 feet D. 10 feet E. 12 feet
RATIONALE: OSHA 29 CFR 1926.451(g)(1) requires fall protection for all scaffold
workers at heights of 10 feet or more above a lower level.
Q005 — Scaffold Components What is the minimum height of a toprail for a scaffold guardrail
system?
A. 32 inches B. 36 inches C. 38 inches D. 42 inches E. 48 inches
RATIONALE: OSHA 29 CFR 1926.451(g)(4)(ii) specifies that the top edge height of
toprails on supported scaffolds must be between 38 and 45 inches above the platform surface.
Q006 — Scaffold Components What is the maximum gap allowed between scaffold planks?
A. No gaps are permitted B. 1/4 inch C. 1 inch D. 2 inches E. 3 inches
RATIONALE: OSHA 29 CFR 1926.451(b)(1)(ii) states that the space between adjacent
scaffold planks shall not exceed 1 inch to prevent foot or tool hazards.
Q007 — OSHA Regulations Which OSHA standard specifically covers scaffolding in the
construction industry?
A. 29 CFR 1910.28 B. 29 CFR 1926.451 C. 29 CFR 1926.502 D. 29 CFR 1910.23 E. 29
CFR 1926.100
RATIONALE: 29 CFR 1926.451 is the primary OSHA standard that governs scaffolding in
construction.
Q008 — Scaffold Training OSHA requires that scaffold users be trained by a qualified person
in which of the following?
,A. Scaffold assembly techniques only B. Fall hazards, falling object hazards, electrical
hazards, and proper scaffold use C. Load calculations and material specifications D.
Emergency evacuation procedures only E. Basic first aid and CPR
RATIONALE: OSHA 29 CFR 1926.454(a) requires that employees be trained to recognize
hazards including fall hazards, falling object hazards, electrical hazards, and the procedures for
dealing with those hazards.
Q009 — Scaffold Capacity What is the minimum width of a scaffold platform?
A. 12 inches B. 14 inches C. 16 inches D. 18 inches E. 20 inches
RATIONALE: OSHA 29 CFR 1926.451(b)(2) requires that platforms must be at least 12
inches wide.
Q010 — Scaffold Access When is a direct access from another scaffold or structure acceptable
instead of a ladder?
A. When the scaffold is less than 10 feet high B. When the height difference between scaffold
and structure is 24 inches or less C. When the supervisor gives verbal approval D. When
there are 5 or fewer workers on the scaffold E. When the scaffold is a tube and coupler type
RATIONALE: OSHA 29 CFR 1926.451(e)(6) allows direct access when the scaffold is not
more than 14 inches horizontally and not more than 24 inches below the other surface.
Q011 — Scaffold Types Which type of scaffold is supported by rigid, load-bearing members
such as poles, legs, frames, or similar rigid support?
A. Suspended scaffold B. Aerial lift C. Supported scaffold D. Mast climber E. Boatswain's
chair
RATIONALE: A supported scaffold is one or more platforms supported by outrigger beams,
brackets, poles, legs, uprights, posts, frames, or similar rigid load-bearing members.
Q012 — Scaffold Types A two-point adjustable suspension scaffold is also known as a:
A. Bricklayer's scaffold B. Tube and coupler scaffold C. Swingstage scaffold D. Mobile
scaffold E. Pump jack scaffold
, RATIONALE: A two-point adjustable suspension scaffold, commonly called a swingstage or
swing scaffold, is suspended by two stirrups or hangers at each end.
Q013 — Scaffold Types Which scaffold type uses a single work platform supported by a pair of
brackets attached to wall jacks?
A. Tube and coupler scaffold B. Pump jack scaffold C. Frame scaffold D. Needle beam
scaffold E. Ladder jack scaffold
RATIONALE: A pump jack scaffold uses a vertical pole and a pump jack bracket to raise
and lower the working platform, most commonly used for siding and exterior finishing work.
Q014 — Scaffold Types What type of scaffold is used when work must be done on a building
face and is hung from outrigger beams extending from the roof?
A. Frame scaffold B. Suspended scaffold C. Mobile scaffold D. Bricklayers scaffold E.
Trestle scaffold
RATIONALE: A suspended scaffold is supported from above by ropes or other non-rigid
means. It is used when work must be performed on building facades and other elevated
structures.
Q015 — Scaffold Types A mobile scaffold must have casters or wheels that:
A. Are at least 6 inches in diameter B. Are locked when the scaffold is in use and workers are
on it C. Are capable of supporting four times the scaffold load D. Are made of rubber or non-
marking material only E. Have a rated capacity of at least 500 lbs each
RATIONALE: OSHA 29 CFR 1926.452(w)(6) requires that casters and wheels shall be
locked with positive wheel and/or swivel locks to prevent movement of the scaffold while
stationary.
Q016 — Scaffold Types What type of scaffold consists of a platform resting on two or more
portable sawhorse-type frames?
A. Horse scaffold B. Trestle scaffold C. Outrigger scaffold D. Float scaffold E. Interior hung
scaffold
