NCCCO Mobile Crane Practice Exam 2026 - Free Crane Operator Certification Practice Questions and Study Guide

Question: 1 / 400

What is the result of placing timber blocking under the tips of the tracks on a crawler crane?

Decreases the permitted capacity of the crane

Makes the crane more stable

Placing timber blocking under the tips of the tracks on a crawler crane enhances the crane's stability. This is achieved by distributing the weight more evenly and increasing the ground bearing surface area. By doing this, the blocking minimizes the risk of ground deformation or sinking that could occur under the extreme loads that crawler cranes are capable of lifting. When the tracks have additional support, it helps in maintaining the crane's equilibrium, especially when lifting loads near the limit of its capabilities or on uneven ground. Thus, using timber blocking effectively bolsters the overall stability of the crane during operations, making it safer and more efficient.

The other options associated with decreased capacity or reduced stability do not align with the operational benefits of using blocking, which specifically addresses stability enhancement.

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Reduces the capacity of the crane

Makes the crane less stable

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