What devices are wired to the relay circuit and are turned on in sequence to create the steps of operation?

The correct answer highlights the role of output devices in a relay circuit. In a typical relay operation, output devices are connected to the circuit in such a way that they can be energized or activated in a specific order. This sequential operation is essential for various automated processes and control systems, allowing for precise management of equipment functionality.

Output devices, like motors, lights, or solenoids, respond to signals from the relay circuit, which acts as a control mechanism. When the relay is activated, it energizes the output devices in a predetermined sequence, creating a 'step' effect. This capability is critical in applications such as industrial automation, where different operations need to occur in a specific order for tasks to be completed effectively and safely.

While input devices detect conditions or changes in the environment, such as sensors or switches, they do not perform the jobs or functions that the relay sequence controls. Memory devices are utilized for storing information but do not directly participate in the relay's operation process. The term "automatic" refers more broadly to the idea of automation rather than the specific devices involved in the relay operations. Thus, the selection of output devices accurately represents those components directly involved in executing the steps of operation within a relay circuit.