Which tool is a powered hydraulic device designed to push straight, moving heavy loads?

• A. Come-Along
• B. Cribbing
• C. Head Protection Systems (HPS)
• D. Extension Rams

Answer: (D)

The key idea is recognizing a hydraulic tool that is built to push heavy loads in a straight line. An extension ram uses hydraulic power to extend a ram straight forward, delivering a controlled pushing force to move or separate a heavy load along a line. This makes it ideal for pushing actions in rescue operations, where you need a linear push rather than a pull or something that only supports or protects. The other options serve different roles: a come-along is manual and used for pulling; cribbing provides stabilization and support; head protection systems are personal protective equipment. So the extension ram is the tool designed to push straight and move heavy loads.