What are the two major parts that make up the electrohydraulic steering unit?

The correct identification of the components of the electrohydraulic steering unit is based on the fundamental understanding of its operational design. The two major parts that make up the electrohydraulic steering unit are indeed the ram unit and the power unit.

The ram unit is responsible for translating hydraulic pressure into mechanical movement, which physically moves the steering system (such as the rudder in a ship). This component forms the actuator part of the system, converting the hydraulic energy into directional movement. The power unit, on the other hand, generates the hydraulic pressure necessary for the ram unit to operate. This part typically consists of a pump, which supplies fluid, thus creating the force needed for steering maneuvers.

In contrast, while the pump unit and control unit play significant roles in hydraulic systems, they are not the only parts mentioned that comprise the entire steering unit itself. The rudder and control panel might be part of the overall steering mechanism, but they do not constitute the core structural and functional elements of the steering unit. Lastly, hydraulic lines and the reservoir are vital for the distribution and storage of the hydraulic fluid, respectively, but they do not represent the primary functional units of an electrohydraulic steering system. Thus, focusing on the ram unit and power unit