Which type of system typically uses hydraulics?

Hydraulics are systems that utilize incompressible fluids to transmit power and perform work. This is a defining characteristic of mechanical systems that rely on liquid force transmission. In a hydraulic system, fluid pressure in a confined space can be used to move machinery components and perform tasks such as lifting, lowering, and powering various applications. Common examples include hydraulic lifts, heavy machinery, and automotive braking systems.

In contrast, electrical systems are based on the flow of electric current, pneumatic systems use compressible gases (usually air) for power transmission, and magnetic systems involve magnetic forces rather than fluid dynamics. Therefore, the emphasis on liquid force transmission in mechanical systems makes this the correct choice for a system that typically uses hydraulics.