OSHA 30 Hour Construction Program Practice Test

Which of the following conditions can limit the load rating of a crane?

1. Clearing construction debris

2. Lifting over the side

3. Regular maintenance checks

4. Using stabilizing outriggers

The correct answer is: Lifting over the side

Lifting over the side directly impacts the load rating of a crane because it alters the center of gravity and the stability of the crane. When a crane lifts loads from the side rather than directly in front, it can lead to increased leverage on the crane's structure, which can reduce its capacity to safely lift heavy items. This practice may exceed the designed load rating and could lead to tipping or other stability issues. The other options do not have the same direct impact on the load rating. Clearing construction debris is necessary for safe operations but does not inherently limit the crane’s capacity. Regular maintenance checks are critical for ensuring the crane operates safely and efficiently, but they are not a factor that limits load ratings; in fact, failing maintenance can lead to unsafe conditions. Finally, stabilizing outriggers serve to increase stability and lift capacity when properly deployed, meaning they enhance rather than limit the crane’s load rating. Thus, lifting over the side is especially significant in terms of how it can compromise the safe operating limits of the equipment.