Final answer:
Wiring diagrams are crucial for understanding electrical circuits and come in various forms; North American OEMs typically use the ANSI standard for their schematics, which are versatile in their application.
Step-by-step explanation:
The question is about types of wiring diagrams used by North American-based Original Equipment Manufacturers (OEMs). Wiring diagrams are essential tools for understanding and analyzing electrical circuits. They come in various forms such as block diagrams, isometric diagrams, and others. However, when talking about the standards used to represent components within these diagrams, 'ANSI' and 'IEC' symbols are mentioned. The ANSI standard is noted for its visual recognition in our context and is typically used in North American diagrams.
Furthermore, schematics play a crucial role in visualizing the main features of a circuit and can apply to various situations. For instance, the same schematic can illustrate both a truck battery connected to a headlight or a small battery connected to a penlight. Regardless of the actual application, the analysis remains consistent across these scenarios. The symbols used for components like resistors differ within ANSI and IEC standards, with ANSI being the focus of the text in question.