FREE STSC Scaffolding Erection and Inspection Questions and Answers

Question 1

According to OSHA, who is responsible for inspecting a scaffold and its components for visible defects before each work shift?

Accepted Answer

A competent person

Answer

The site superintendent

Answer

Each employee who will use the scaffold

Answer

A registered professional engineer

Question 2

What is the minimum height requirement for the top rail of a guardrail system on a supported scaffold?

Accepted Answer

Between 38 and 45 inches

Answer

Exactly 36 inches

Answer

A minimum of 48 inches

Answer

Between 30 and 36 inches

Question 3

When scaffold planks are overlapped to create a long platform, what is the minimum overlap distance required over the supports?

Accepted Answer

12 inches

Answer

6 inches

Answer

9 inches

Answer

18 inches

Question 4

What is the minimum clearance distance that must be maintained between a scaffold and an insulated power line of less than 300 volts?

Accepted Answer

3 feet

Answer

1 foot

Answer

10 feet

Answer

20 feet

Question 5

Supported scaffold poles, legs, posts, frames, and uprights must bear on which of the following?

Accepted Answer

Base plates and mud sills

Answer

Compacted soil only

Answer

Concrete blocks or bricks

Answer

Stacked wood planks

Question 6

Under OSHA regulations, when is it permissible to use scaffold cross-bracing as a means of access?

Accepted Answer

It is never permissible

Answer

When the fall height is less than 10 feet

Answer

When a qualified person determines it is safe

Answer

When the scaffold is not yet fully loaded