Stabilizing the Scaffold

Which of the following is not used to restrain the scaffold from tipping after the scaffold foundation has been established and while the scaffold is being erected?

• guylines
• cotton ropes
• tie-ins
• bracing

When stabilizing the scaffold, it must be tied off at the node point, which is the strongest part of the scaffold. (True; False)

• true
• false

Ties, guys, braces, or outriggers must be used to prevent tipping wherever an eccentric load is applied or transmitted to a supported scaffold. (True; False)

• true
• false

Which of the following is a stabilizing component placed diagonally across and fastened to the vertical and horizontal members of a scaffold?

• tie-in
• brace
• guyline
• runner/ledger

Which of the following is a stabilizing device used between the scaffold framework and an adjoining building or structure to increase lateral strength and rigidity?

• tie-in
• brace
• guyline
• runner/ledger

Which of the following is supporting cable used in the absence of tie-ins to help maintain the strength and rigidity of the scaffold?

• tie-in
• brace
• guyline
• runner/ledger

Bracing is most effective when the angle of the brace between parts is approximately which of the following?

• 15º
• 25º
• 35º
• 45º

When erecting a tube and clamp scaffold, the more frequent the bracing, the more stable the scaffold will be. (True; False)

• true
• false

Horizontal diagonal bracing, also known as plan bracing, keeps a scaffold square. (True; False)

• true
• false

Ledger bracing can be used as a substitute if cross bracing is specifically requested on a scaffold assembly. (True; False)

• true
• false