What is the purpose of lines in hydraulic systems?

The purpose of lines in hydraulic systems is primarily to connect the various components of the system. Hydraulic systems rely on the movement and direction of fluid to transmit power and perform work. The connecting lines are crucial for allowing hydraulic fluid to flow between elements such as pumps, reservoirs, actuators, and control valves. By doing so, they ensure that the entire system functions cohesively, enabling efficient operation as fluid moves to perform tasks like lifting, pushing, and turning machinery.

In the context of the other options, while they might highlight important aspects of hydraulic systems, they do not accurately represent the primary role of lines. Electrical power and the generation of pressure are functions linked to separate components within the system. Storing fluid is a function assigned primarily to reserviors rather than the lines themselves. Thus, understanding that lines serve the essential purpose of connecting parts clarifies their role in maintaining hydraulic system integrity and functionality.