National Commission for the Certification of Crane Operators (NCCCO) Mobile Crane Practice Exam

Where should the hook be positioned when preparing to hoist a light load?

1. Slightly to the side you're planning to swing to

2. Slightly to the side opposite you plan to swing to

3. Directly above the load's center of gravity

4. Above the edge of the load closest to the crane

The correct answer is: Directly above the load's center of gravity

Positioning the hook directly above the load's center of gravity is crucial when preparing to hoist a light load because it ensures balance and stability during the lift. When the hook is aligned with the center of gravity, the load will be less prone to tipping or swinging, reducing the risk of accidents and allowing for safer maneuvering. This alignment is essential in maintaining control over the load, especially in light lifting scenarios where even minor shifts can lead to destabilization. This practice minimizes the chances of uneven distribution of weight that could cause the load to rotate unexpectedly, which can be particularly dangerous. Proper hook positioning is fundamental in crane operations as it directly impacts both the efficiency and safety of the lift.