Which of the following prying/spreading tools is an example of a machine-powered rescue tool?

Hydraulic Spreaders are designed to be machine-powered rescue tools that utilize hydraulic force to effectively open, spread, or lift heavy objects during rescue operations, especially in situations like vehicle extrications. These tools operate by converting hydraulic pressure into mechanical force, allowing firefighters to gain access to trapped individuals quickly and efficiently. The power provided by hydraulic systems enables spreaders to handle significant loads that would be impossible to manage manually, making them indispensable in emergencies.

In contrast to hydraulic spreaders, the other options listed rely on manual effort or are not classified as powered tools. Manual hydraulic jacks, while helpful, are operated manually and do not have the same automatic or machine-powered characteristics. Pry bars and wooden wedges are simple, hand-operated tools commonly used for leverage and support but lack any hydraulic or powered mechanisms. Understanding the specific function and classification of each tool is crucial for efficient emergency response and safety.