What is the role of hydraulic fluid in a hydraulic system?

The role of hydraulic fluid in a hydraulic system is fundamental to its operation. Hydraulic fluid serves two primary functions: it transmits power throughout the system and lubricates its components. When the hydraulic fluid is pressurized, it creates force that can be applied to actuate machinery, allowing for the movement or operation of different components in a hydraulic system. This ability to transmit power is essential for tasks ranging from lifting heavy loads to powering machinery.

In addition to power transmission, hydraulic fluid also provides lubrication to the moving parts within the system. Proper lubrication is crucial as it reduces friction, minimizes wear and tear on components, and helps prevent overheating, which can lead to failures or reduced efficiency.

The correct answer highlights both of these key functions, reinforcing the importance of hydraulic fluid in maintaining the operational integrity and efficiency of hydraulic systems.