Which action will reduce crane capacity?

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Multiple Choice

Which action will reduce crane capacity?

Crane capacity is governed by load moment about the base, which depends on the weight, the radius (how far the load is from the base), and the boom angle. When you boom down, the boom becomes more horizontal, pushing the load farther out and increasing the moment arm. That extra moment reduces the maximum safe load for that configuration, so the capacity drops. Booming up tightens the geometry, shortening the moment arm and allowing a higher capacity at the same radius. Lifting while rotating adds dynamic effects that must be checked against the chart for the specific configuration, and traveling with a load affects stability and control, but the most direct, consistent reduction in static capacity comes from booming down.

Which action will reduce crane capacity?

Study for the Rigging Practices Test. Prepare with detailed quizzes and practice questions, with hints and explanations for each query. Equip yourself with vital rigging knowledge and ace your exam!

Which action will reduce crane capacity?

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