Which of the following is NOT a component of a hydraulic system?

A hydraulic system functions by utilizing a fluid to transmit power. Key components include the hydraulic pump, which generates pressure by moving the hydraulic fluid; the hydraulic fluid itself, which serves as the medium for transferring energy; and actuators (like cylinders or motors), which convert that hydraulic energy into mechanical work.

Hydraulic hoses are essential for connecting these components, allowing the fluid to flow between them. Therefore, the hydraulic hose is an integral part of the hydraulic system. It facilitates the movement of hydraulic fluid from the pump to the actuators and helps maintain system integrity under varying pressures. Thus, the answer indicating that a hydraulic hose is not a component is incorrect, as it plays a vital role in the operation of any hydraulic system.