CBSE Class 8 Social Science Chapter 12 Industries — 20 MCQs with Answers

Industrial location is governed by several interrelated factors: proximity to raw materials, availability of skilled and cheap labour, reliable power supply, efficient transport networks, and nearness to the market. The NCERT chapter emphasises that no single factor is decisive; industries weigh multiple considerations before choosing a site. For instance, iron and steel plants require bulky raw materials like iron ore and coking coal, so they locate near coalfields or ore deposits. In contrast, IT industries depend on skilled human capital and connectivity, not physical raw materials. MCQs in this section test both factual recall and the ability to apply these principles to hypothetical or real-world scenarios.

The iron and steel industry is categorised as a basic or key industry because it supplies raw material to many other sectors, including automobiles, construction, and machinery. The chapter highlights Jamshedpur as the first integrated steel plant in India, established by Tata Iron and Steel Company (TISCO) in 1907. Other major plants include Bhilai, Durgapur, Rourkela, and Bokaro, all strategically located near coalfields or iron-ore deposits. Students must remember specific plant names, their locations, and the rationale behind their siting. MCQs often ask which plant is in which state or why a particular site was chosen, testing both map skills and conceptual understanding.

The cotton textile industry is one of the oldest and most widespread in India, employing millions across spinning, weaving, dyeing, and printing stages. NCERT Chapter 12 notes that Maharashtra and Gujarat lead in cotton textiles due to favourable climate, black soil for cotton cultivation, and proximity to ports for exporting finished cloth. Cities like Mumbai, Ahmedabad, Surat, and Coimbatore are major textile hubs. Apart from cotton, the chapter also touches on jute, silk, and woollen textiles, each with distinct regional concentrations. MCQs test knowledge of which state leads in which textile, factors favouring specific locations, and the difference between handloom and power-loom sectors.

The IT industry represents a modern, knowledge-driven sector that does not rely on traditional industrial inputs like raw materials or heavy machinery. Instead, it needs skilled manpower, reliable internet and power, and a conducive business environment. Bengaluru emerged as India's Silicon Valley in the 1980s due to its pleasant climate, presence of premier engineering colleges like IISc and IITs, and early government support. Hyderabad, Pune, Gurugram, and Chennai followed. The chapter underscores that IT exports contribute billions of dollars annually and employ lakhs of software engineers. MCQs probe why Bengaluru became the IT hub, the difference between IT and manufacturing industries, and the global nature of IT services.

NCERT Chapter 12 identifies several industrial regions based on historical development, resource availability, and infrastructure. The Mumbai-Pune belt (Maharashtra) is known for textiles, engineering, petrochemicals, and automobiles. The Ahmedabad-Vadodara region (Gujarat) specialises in textiles, petrochemicals, and pharmaceuticals. The Bengaluru-Chennai corridor excels in electronics, IT, and automobiles. The Chotanagpur plateau (Jharkhand-Odisha-West Bengal) is rich in minerals and hosts iron-steel and heavy engineering units. The Hugli region near Kolkata focuses on jute, engineering, and chemicals. Students should memorise these regions along with their signature industries for map-based and descriptive MCQs.

Multiple-choice questions in CBSE Class 8 Social Science typically appear in the objective section carrying one mark each. The 2024–25 syllabus encourages competency-based questions, so expect a mix of direct recall, map interpretation, assertion-reason, and case-based MCQs. Start by reading the question stem carefully; often a single word like 'NOT' or 'EXCEPT' changes the entire meaning. Eliminate obviously wrong options first to improve your odds even if you are unsure. For assertion-reason MCQs, verify each statement independently before checking if the reason explains the assertion. In map-based MCQs, quickly orient yourself using state boundaries or river courses to locate industrial regions accurately. Time management is crucial: allocate roughly 30–40 seconds per MCQ so you have ample time for short-answer and long-answer sections later. If you are stuck, mark your best guess and move on; revisit only if time permits. Regular chapter-wise practice, like the 20 questions provided here, builds speed and confidence, reducing exam-day anxiety significantly.

Many Class 8 students confuse cotton textile centres with jute centres, marking Ahmedabad when the question asks for jute mills (correct answer: Hugli or Kolkata). Another frequent error is attributing coal-based location logic to IT or electronics industries, which do not depend on mineral raw materials. In assertion-reason questions, students sometimes mark 'both true' without checking whether the reason actually explains the assertion, leading to wrong answers. Map-location MCQs trip up learners who have not practised marking industrial regions on blank maps; for instance, mixing up Bhilai (Chhattisgarh) with Bokaro (Jharkhand). Additionally, students overlook the word 'EXCEPT' or 'NOT' in the question stem, choosing the correct example when the question asks for the incorrect one. Time pressure compounds these errors during exams. The solution lies in slow, attentive first reading, regular map drills, and practising at least 50–100 MCQs per chapter to internalise patterns and eliminate silly mistakes.

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