Rigger Basic ADC Practice Test

Why might spreaders be used when lifting an irregularly shaped load?

To concentrate the load at a point. To distribute the load and reduce point contact. To speed up the lift. To reduce the need for operator training.

Correct Answer:

To distribute the load and reduce point contact.

Explanation:

Spreaders are used when lifting an irregularly shaped load to distribute the weight over a wider area and reduce point contact. By tying the rigging to multiple, spaced points, the load shares its weight across a larger surface, which lowers the pressure at any single contact point and helps prevent damage to the load, the slings, or the lifting gear. This also helps keep the lift stable and level, reducing the chance of slings slipping or the load shifting on sharp edges. The idea isn’t to speed up the lift or replace proper training—the spreader’s purpose is to distribute load and minimize pinpoint stresses that can cause damage or instability.

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