Examination Practice Questions And

Illinois Scaffolding Technician Certification Examination Practice Questions And Correct Answers (Verified Answers) Plus Rationales 2026 Q&A | Instant Download Pdf

• Which of the following is the primary purpose of guardrails on

scaffolds?

• To provide additional support for workers
• To hold scaffolding together
• Prevent workers from falling off the scaffold
• To support scaffold planks

Guardrails are designed to protect workers from falls, which is one of the leading causes of scaffold-related injuries.

• What is the maximum allowable span for a scaffold plank without

support according to OSHA standards?

• 6 feet 1 / 4

• 8 feet
• 10 feet
• 12 feet

OSHA requires that scaffold planks not exceed 10 feet between supports to prevent sagging or collapse.

• Which type of scaffold is most suitable for working on uneven ground?
• Tube and clamp scaffold
• Supported scaffold
• Suspended scaffold
• Adjustable scaffold

Adjustable scaffolds can be leveled on uneven surfaces, providing stability and safe working height.

• What is the required minimum width of a scaffold platform used for

two or more workers?

• 12 inches
• 18 inches
• 20 inches
• 24 inches

OSHA standards specify a minimum platform width of 24 inches to ensure enough space for worker movement and safety.

• How often should scaffolds be inspected by a competent person?
• Weekly
• Monthly 2 / 4

• Before each work shift and after any alteration
• Every six months

Scaffolds must be inspected before use each day and after any changes to ensure safety and compliance.

• What is the purpose of tie-ins on a suspended scaffold?
• To support the platform planks
• To secure the scaffold to the structure
• To support worker weight
• To hold guardrails

Tie-ins prevent the scaffold from swaying or collapsing by anchoring it to the structure.

• Which of the following is NOT considered a type of scaffolding hazard?
• Falls
• Falling objects
• Electrocution
• Proper training

Proper training reduces hazards; falls, falling objects, and electrocution are all recognized scaffold hazards.

• What is the minimum distance a scaffold must be from energized

power lines?

• 5 feet
• 8 feet
• 10 feet 3 / 4

• 10 feet for lines up to 50 kV, more for higher voltage

OSHA specifies minimum clearance distances from power lines based on voltage to prevent electrocution.

• What is the purpose of base plates on scaffolds?
• To distribute weight and provide stability
• To support guardrails
• To secure planks
• To allow for tie-ins

Base plates prevent sinking into the ground and maintain scaffold stability.

• Which type of scaffold platform material is recommended by

OSHA?

• Aluminum planks only
• Steel planks only
• Plastic planks only
• Wood or metal scaffolding planks capable of supporting intended

loads Scaffold platforms must support intended loads safely; wood or metal planks meeting OSHA standards are acceptable.

• How many workers are permitted on a scaffold at one time?
• 1
• 2
• As many as the load capacity allows
• / 4