C-Hooks must maintain how many points of contact with the parapet when properly rigged?

C-Hooks must maintain how many points of contact with the parapet when properly rigged?

• A. 3 points of contact
• B. 2 points
• C. 4 points
• D. 1 point

Answer: (A)

Three points of contact provide a stable, redundant grip for C-hooks on a parapet. With three contact points, the load is distributed across more surfaces, reducing the chance of slipping or tilting as forces are applied. If there were only two points, the hook could pivot or shift under tension, increasing the risk of disengagement. Four points aren’t practical with typical parapet geometry and could cause binding or crowding at the edge. So, maintaining three points of contact ensures the hook stays seated securely and the anchor remains reliable under load.

Three points of contact provide a stable, redundant grip for C-hooks on a parapet. With three contact points, the load is distributed across more surfaces, reducing the chance of slipping or tilting as forces are applied. If there were only two points, the hook could pivot or shift under tension, increasing the risk of disengagement. Four points aren’t practical with typical parapet geometry and could cause binding or crowding at the edge. So, maintaining three points of contact ensures the hook stays seated securely and the anchor remains reliable under load.