Red Seal Tower Crane Operator Practice Exam

What should be considered before changing a crane's operational radius?

1. Operator training and license

2. Load capacity and site limitations

3. Height of nearby structures

4. Weather conditions during operation

The correct answer is: Load capacity and site limitations

Before changing a crane's operational radius, it is essential to consider load capacity and site limitations. The operational radius of a crane defines how far it can lift and move loads safely. Altering this radius can significantly affect the crane's load capacity, which is determined by the configuration and setup of the crane. Each crane has specific load charts indicating how much weight it can safely lift at varying radii; exceeding these limits can lead to dangerous situations, including tipping or structural failure. Site limitations also play a crucial role. Factors such as the ground's stability, the available space for operation, and proximity to obstacles can influence how and if a change in operational radius is safe. For instance, moving the crane closer to a building or other obstruction may require a reevaluation of load capacities due to restricted movement or altered center of gravity. Therefore, understanding and addressing load capacity and site limitations is vital to ensure safe and efficient crane operations during any radius adjustments.