Scaffolding Erection and Inspection Flashcards
7 cards from real STSC practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Scaffolding Erection and Inspection flashcards as text
A suspended scaffold rope shows several broken wires in one lay length. What is the OSHA-mandated action?
Answer: Replace the rope immediately and remove the scaffold from service
Any rope with broken wires must be removed from service immediately and replaced before the suspended scaffold is used.
What is the maximum slope allowed for a scaffold access ladder?
Answer: 75 degrees from horizontal
OSHA requires scaffold access ladders to be pitched no more than 75 degrees from horizontal (or 15 degrees from vertical).
Which of the following is an acceptable method to extend the height of a rolling scaffold tower?
Answer: Using extender pins rated for the added load with proper bracing
Rolling scaffolds may only be heightened using manufacturer-approved extender pins and proper diagonal bracing rated for the intended load.
A STSC supervisor notices scaffold legs are resting on frozen ground. What is the primary concern?
Answer: Thawing ground can cause legs to shift or sink, destabilizing the scaffold
When frozen ground thaws, base plates can shift or sink unevenly, causing scaffold instability and potential collapse.
What documentation must a competent person maintain after completing a scaffold inspection under OSHA 1926 Subpart Q?
Answer: A written record is not explicitly required, but findings must be communicated and hazards corrected
OSHA does not mandate a specific written inspection report format, but the competent person must communicate findings and ensure hazards are corrected before use.
When erecting a scaffold on a sloped surface, what is the correct method to achieve level base plates?
Answer: Use screw jacks (adjustable base plates) to achieve a level base
Screw jacks (adjustable base plates) are the approved method for achieving a level scaffold base on sloped surfaces.
Which of the following changes to a scaffold DOES NOT require re-inspection by a competent person before reuse?
Answer: Moving a rolling scaffold to a new location on the same level surface
Rolling a scaffold to a new location on the same level surface does not require re-inspection, though the competent person should verify the new surface conditions.