Scaffolds

When dismantling a scaffold, all work should be conducted:

From the top down.

A scaffold must be erected "plumb, square, and level," because:

If a scaffold is built even a few degrees off plumb, the resulting instability could cause the weight of the scaffold to shift, potentially causing the overloading of one leg and the eventual collapse of the scaffold.

Before the start of each work shift, it is mandatory that:

A competent person inspects the scaffold before the start of each work shift.

Tube and coupler scaffolds over 125 feet high must be designed by:

A registered professional engineer.

What type of scaffold - other than the tube and coupler scaffold - is ideal for use around complex structures?

A system scaffold.

The first step in building a scaffold is to:

Conduct a site inspection.

OSHA 1926.454(c) states: When an employer has reason to believe that an employee lacks the skill or understanding needed for safe work involving the erection, use or dismantling of scaffolds, the employer shall:

Retrain each such employee so that the requisite proficiency is regained.

The three main scaffold types are aerial lifts, supported scaffolds and:

Suspended scaffolds.

This scaffold is simply a rope attached to a harness with an assembly like a boatswain's chair for the worker to sit in.

Suspension scaffold.

If a worker on a scaffold can fall more than 10 feet, they must be protected by guardrails and/or personal fall arrest systems (PFAS). The type of fall protection required will depend upon:

The type of scaffold.