What is the rated capacity of a boom with all booms retracted at a 75° angle according to the lifting capacities chart?

The rated capacity of a boom at a specific angle is determined by the manufacturer's specifications and lifting capacities chart. In this scenario, the correct answer indicates that the boom can handle 7,900 pounds when fully retracted at a 75° angle.

This capacity figure is critical for safe operation, ensuring that operators do not exceed the load limits, which could pose safety hazards. Lifting capacities are calculated based on several factors, including the angle of the boom, the configuration of the equipment, and the center of gravity of the load. As the angle changes, so does the lifting capacity.

In this context, a capacity of 7,900 lbs accurately reflects the safe operational limits specified for this setting and configuration, aligning with industry safety standards and operational guidelines. It's essential for users to refer to the appropriate lifting capacities chart for their specific equipment to ensure compliance and safety on the job.