STSC Scaffolding Erection and Inspection 5

Question 1

A suspended scaffold rope shows several broken wires in one lay length. What is the OSHA-mandated action?

Accepted Answer

Replace the rope immediately and remove the scaffold from service

Answer

Any rope with broken wires must be removed from service immediately and replaced before the suspended scaffold is used.

Question 2

What is the maximum slope allowed for a scaffold access ladder?

Accepted Answer

75 degrees from horizontal

Answer

OSHA requires scaffold access ladders to be pitched no more than 75 degrees from horizontal (or 15 degrees from vertical).

Question 3

Which of the following is an acceptable method to extend the height of a rolling scaffold tower?

Accepted Answer

Using extender pins rated for the added load with proper bracing

Answer

Rolling scaffolds may only be heightened using manufacturer-approved extender pins and proper diagonal bracing rated for the intended load.

Question 4

A STSC supervisor notices scaffold legs are resting on frozen ground. What is the primary concern?

Accepted Answer

Thawing ground can cause legs to shift or sink, destabilizing the scaffold

Answer

When frozen ground thaws, base plates can shift or sink unevenly, causing scaffold instability and potential collapse.

Question 5

What documentation must a competent person maintain after completing a scaffold inspection under OSHA 1926 Subpart Q?

Accepted Answer

A written record is not explicitly required, but findings must be communicated and hazards corrected

Answer

OSHA does not mandate a specific written inspection report format, but the competent person must communicate findings and ensure hazards are corrected before use.

(STSC) Safety Trained Supervisor Construction Practice Test

(STSC) Safety Trained Supervisor Construction Practice Test

STSC Scaffolding Erection and Inspection 5