Which feature is preferred for rigging connections when using carabiners?

• A. Non-locking carabiner.
• B. Locking mechanism to prevent accidental opening.
• C. Nylon-coated carabiner.
• D. Decorative carabiner used for lighting scrims.

Answer: (B)

In rigging, keeping connections secure under all expected loads and movements is essential. A carabiner with a locking mechanism adds a secondary safeguard that prevents the gate from opening by itself if bumped, twisted, or subjected to load. This dramatically reduces the risk of a load being released unexpectedly during setup, rehearsal, or performance. Non-locking carabiners can open under vibration or side forces, which makes them less reliable for critical rigging connections. Nylon coating doesn’t address the core safety need of preventing opening, and decorative carabiners aren’t built or rated for proper load-bearing rigging. So, the locking feature is the best choice for a safe, reliable connection.