In hydraulics, the voltage term corresponds to which physical quantity?

In hydraulics, the voltage term corresponds to which physical quantity?

• A. Temperature
• B. Pressure difference between two points
• C. Flow rate
• D. Pipe length

Answer: (B)

The driving potential in a hydraulic system is the pressure difference between two points. This pressure difference acts like voltage in an electrical circuit, pushing fluid from high pressure toward low pressure and causing flow. Temperature is not what drives hydraulic flow in this context, since it doesn’t set the pressure driving the motion. Flow rate is the result of that driving force—it's analogous to electrical current, not the force that pushes it. Pipe length contributes to hydraulic resistance and energy losses, but it isn’t the driving potential itself.

The driving potential in a hydraulic system is the pressure difference between two points. This pressure difference acts like voltage in an electrical circuit, pushing fluid from high pressure toward low pressure and causing flow.

Temperature is not what drives hydraulic flow in this context, since it doesn’t set the pressure driving the motion. Flow rate is the result of that driving force—it's analogous to electrical current, not the force that pushes it. Pipe length contributes to hydraulic resistance and energy losses, but it isn’t the driving potential itself.