Which diagram shows the connections of circuit parts in a non-electrical format?

The wiring diagram is designed to illustrate the connections and layout of electrical components within a circuit, depicting how these elements interconnect and function in an electrical context. However, the question specifically asks for a diagram that represents circuit parts in a non-electrical format.

A flow diagram is appropriate for outlining processes, showing the sequence of operations or how various components interact within a broader system, regardless of electrical aspects. It provides an overview that can apply to many fields and often focuses on the steps within a process rather than strictly electrical connections.

While a wiring diagram is useful for representing wiring connections, it is still fundamentally an electrical diagram. The schematic diagram also presents electrical circuits and components, detailing their relationships and functions, but again within an electrical context.

The piping layout, on the other hand, represents the arrangement of piping systems, often used in plumbing or process engineering. This diagram showcases how different piping parts connect but does so from a non-electrical perspective.

Thus, the flow diagram stands out as the answer that best represents connections in a non-electrical format, as it emphasizes the overall process without being limited to electrical components.