Which of the following types of equipment requires a 1C hoisting license?

The equipment that requires a 1C hoisting license is specifically designed to operate hydraulic telescoping booms without wire ropes. This type of equipment involves lifting loads and has specific operational characteristics and safety protocols that differentiate it from other machinery.

Hydraulic telescoping booms have the ability to extend and retract, which adds a level of complexity in their operation compared to other machines like backhoes, excavators, and skid-steer loaders that do not utilize hydraulic lifting mechanisms in the same way. The licensing requirement ensures that operators understand the unique handling, stability, and safety issues associated with this type of equipment, which is crucial for preventing accidents and ensuring safe operations on job sites.

In contrast, while backhoe loaders, excavators, and skid-steer loaders may involve some lifting capabilities, they do not utilize the specific hydraulic telescoping boom design for lifting, leaving them categorized under different licensing requirements. Understanding the specific equipment variations is essential for proper certification and safe operational practices in the field.