Which article is identified as the introductory article outlining purpose and scope?

• A. Article 90
• B. Article 100
• C. Article 240
• D. Article 400

Answer: (A)

The main idea here is understanding how a code is structured: the introductory article sets the stage by stating why the code exists and what it covers. This article answers two big questions for anyone reading the code: what is the overall goal, and what is within or outside the code’s reach. It also often includes definitions or a glossary that establish the terms used throughout the rest of the code. Because it provides this overarching purpose and scope, it acts as the roadmap you use to interpret all the later, more specific rules.

That’s why this introductory article is the best choice. The other articles focus on particular parts of the code—such as exact definitions or rules about a specific topic like overcurrent protection or energy supply methods—without giving the broad framing of why the code exists and what it intends to cover. Understanding the purpose and scope first helps you navigate those topic-specific sections correctly.