An out-of-level crane can cause radius changes during swing, affecting operation. Which aspect is most directly affected?

• A. Temperature of the load
• B. Radius during swing
• C. Speed of the hoist
• D. Color of the load

Answer: (B)

An out-of-level crane changes the load’s path because gravity makes the load settle toward the lowest point, so the horizontal distance from the crane’s center to the load—the radius during swing—becomes variable. This radius during swing is the aspect most directly affected because it defines the load’s working envelope, clearance from obstacles, and how capacity is applied as the crane moves. If the radius changes during swing, you can misjudge clearances or approach limits, increasing risk during lifting. The temperature of the load and the color of the load aren’t determined by whether the crane is level, and while hoist speed can be influenced by many factors, it’s not the primary change tied to an out-of-level condition.