What terminal on the relay socket should Point K be connected to in a ladder diagram?

In a ladder diagram, connections are made to specific terminals on a relay socket to control the relay’s operation according to the intended function of the circuit. Point K typically represents a specific control point, which is often tied to the function or status of the relay.

The appropriate terminal for Point K is determined by how the relay is designed to be energized or how it interacts with other components. In many relay designs, terminal 4 serves as the connection point where control signals from other devices or components in the circuit are applied. This terminal is often used for activating the relay, indicating that when Point K is connected to terminal 4, the relay will engage when conditions in the circuit meet the designated criteria.

Understanding the configuration of the relay and the role of terminal 4 in the specific ladder logic is critical for ensuring proper functionality. In contrast, the other terminals may connect to different parts of the circuit that do not serve the same purpose for Point K. Hence, terminal 4 is the logical choice for connecting Point K due to its role in the relay's operation within that particular diagram.