At what boom configuration can a 100-ton crane pick up 100 tons?

The correct answer highlights the relationship between boom configuration, capacity, and stability of a crane. When a crane is configured to operate at maximum boom height and minimum boom length, it places the lifting capacity in a favorable position. The maximum height allows for optimal leverage, meaning the load can be positioned directly below the boom. This configuration utilizes the crane's capabilities to its fullest, allowing it to lift the maximum load specified, in this case, 100 tons.

In contrast, other options may not provide the same lifting capacity or stability. For instance, a minimum boom height combined with maximum boom length could lead to reduced capacity due to increased leverage and instability. An intermediate boom angle might not be optimal for achieving the crane’s maximum lift capabilities. Lastly, stating any boom configuration suggests that a crane could safely lift 100 tons regardless of its setup, which is not accurate as every configuration affects the crane's lifting ability and safety parameters.

Understanding these principles is essential for ensuring safe operations and maximizing the crane’s performance.