What is the purpose of on-site supervision during a synchronized lift?

• A. To ensure the lift is completed as quickly as possible.
• B. To minimize safety checks.
• C. To oversee lift plan execution, ensure synchronization, and address hazards on site.
• D. To handle only paperwork after the lift.

Answer: (C)

In a synchronized lift, several cranes must move in precise, coordinated fashion, so the key purpose of on-site supervision is to keep the lift plan moving exactly as written, maintain real-time synchronization, and actively manage hazards on the ground. The supervisor watches that each crane follows its part of the plan, confirms rigging and hook heights are correct, and ensures clear, continuous communication among operators, signalers, and riggers. They continuously assess conditions on the site—ground stability, weather, nearby structures, power lines, and personnel in the area—and enforce safety measures like exclusion zones and stop-work authority if anything drifts from safe operation. When unexpected issues arise, the supervisor can pause or adjust the lift to prevent accidents. This role is all about safe, accurate execution and hazard control, not about rushing, skipping safety checks, or handling paperwork after the lift.