Question

You are allowed a supported scaffold height to base ratio of _____________ before restraints of some sort need to be incorporated. The restraints from tipping can be guying, tying, bracing or comparable/equivalent means.

Option 1. 2:1
Option 2. 3:1
Option 3. 4:1
Option 4. 5:1

Answer 1

The maximum height to base ratio for a scaffold without additional restraints is 4:1. Beyond this ratio, restraints such as guying, tying, or bracing are required for safety.

Step-by-step explanation:

The question relates to determining the safety requirements for a scaffold in connection with its height to base ratio. According to safety regulations, a supported scaffold with a height to base ratio of 4:1 is the maximum allowed before restraints like guying, tying, or bracing must be used to prevent tipping. If the scaffold exceeds this ratio, it would not be considered safe to use without proper restraints to increase its stability.