What is the capacity ratio for a basket hitch of a wire rope sling based on 100% of the hitch capacity?

Prepare for the EICA Mobile Crane and Digger Test with expert-crafted flashcards and multiple choice questions. With hints and detailed explanations, you're set to excel in your certification exam.

The capacity ratio for a basket hitch of a wire rope sling is based on the fundamental mechanics of load distribution and the angles of the sling when lifting. In a basket hitch configuration, the sling is looped back on itself, providing a stronger support mechanism compared to other types of hitches, such as single leg or vertical hitches.

When properly rigged, a basket hitch effectively distributes the load across both legs of the sling. This arrangement allows for a significant increase in lifting capacity. A typical design factor used in many lifting applications is that a basket hitch can enhance the lifting capacity of the wire rope sling up to 50% more than the rated capacity of a single leg hitch, leading to a common standard ratio of 2:1 (where the effective working load is doubled). Thus, based on the context of the question which refers to the ratio as a multiple of 100%, the overall capacity utilization through a basket hitch can indeed reflect a ratio of up to 25:1 under optimal load conditions.

Understanding this capacity and its implications is crucial for safe lifting operations, ensuring that users recognize the importance of using the right configuration to maximize the performance of the wire rope sling.

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