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Social Science (087) — AI-generated practice question

AI-generated practice question — model-generated for extra practice, not a previous-year CBSE board question.

Q1. [2] medium thorough-understanding
A refinery is described as a 'nodal industry' for several other industries. Justify this description by explaining what petroleum provides to industries beyond just fuel.
Generated by claude-sonnet-4-6 · 2026-06-26 13:34 · grounding rag
Model Answer

A petroleum refinery is called a 'nodal industry' because petroleum does not merely serve as fuel — it also supplies lubricants for machinery and acts as a raw material for several manufacturing industries. Petroleum refineries specifically support synthetic textile, fertiliser, and numerous chemical industries, making them a hub that connects multiple industries.

Source: Conventional Sources of Energy, Chapter 5

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Explanation

The key phrase is directly from the textbook: "Petroleum refineries act as a 'nodal industry' for synthetic textile, fertiliser and numerous chemical industries." Examiners expect you to mention:

  1. Petroleum's role beyond fuel — lubricants and raw materials.
  2. The specific industries it supports (synthetic textiles, fertilisers, chemicals).

Do not just write "it provides fuel" — that misses the point of the question entirely.

Previous-year CBSE Grade 10 board exam questions, organised by subject and chapter, each with a model answer — free to read and print.