Which concept is analogous to Volt in a hydraulic system?

In a hydraulic system, the concept that is analogous to Volt in an electrical system is pressure. In electrical circuits, voltage (measured in volts) represents the potential energy per unit charge available to move electrons through a conductor. Similarly, in a hydraulic system, pressure is the force exerted per unit area, which drives the movement of hydraulic fluid through pipes and actuates hydraulic devices.

The pressure in hydraulics can be thought of as the "push" that causes the fluid to flow, just as voltage provides the push needed for current to flow in an electrical circuit. In essence, just as voltage creates the potential for electrical work, pressure creates potential for hydraulic work.

Other options do not directly relate to the concept of voltage in a way that reflects the push or driving force behind the flow of energy. For instance, energy measured in joules corresponds more to work done rather than potential difference or driving force, and volume or specific force measures don't encapsulate the driving pressure aspect needed for comparing to voltage.