Which practice helps prevent shock loading?

• A. Slow, controlled lifts with smooth starts and no hard stops.
• B. Rapid, jerky motions.
• C. Lifting to the maximum rated load immediately.
• D. Removing slack take-up entirely.

Answer: (B)

Shock loading happens when a load is applied too quickly, causing peak forces far above the steady lifting force. To prevent it, lift slowly with smooth starts and avoid any hard stops or abrupt changes in motion. Taking up slack gradually gives the rigging system time to react and reduces peak tension, protecting rope, hardware, and the load. Abrupt lifting, trying to reach a large load immediately, or removing slack entirely can all create a sudden jerk and spike dynamic forces, increasing the risk of damage or failure. So the best practice is a slow, controlled lift with a smooth start and no abrupt stops, which minimizes dynamic forces and keeps the operation safe.