Manufacturing Industries

Manufacturing is the production of goods in large quantities after processing raw materials into more valuable products, such as paper from wood, sugar from sugarcane and iron and steel from iron ore. Manufacturing is considered the backbone of development because it modernises agriculture, reduces dependence on agricultural income by providing jobs in secondary and tertiary sectors, helps remove unemployment and poverty, and earns foreign exchange through exports. In this chapter you will study the factors that decide where industries are located, such as raw materials, power, labour, capital, markets and transport, and how agglomeration economies develop in cities. You will learn to classify industries by source of raw materials, main role, capital investment, ownership, and bulk and weight of raw materials and finished goods. You will study agro-based industries such as cotton textiles, jute and sugar, and mineral-based industries such as iron and steel, aluminium smelting, chemicals, fertilisers, cement and automobiles, along with the information technology and electronics industry. Finally, you will examine industrial pollution of air, water, land and noise, and measures to control it.

Detailed Worksheet: Manufacturing Industries Section A - Definitions (10 marks) 1. What is manufacturing? Why is it considered the backbone of development? (2 marks) 2. What are agglomeration economies? Give one example. (2 marks) 3. Distinguish between agro-based and mineral-based industries, with one example of each. (2 marks) 4. What are basic or key industries? Give two examples. (2 marks) 5. Distinguish between public sector and joint sector industries with one example each. (2 marks) Section B - Calculations and Applications (15 marks) 6. An integrated steel plant uses iron ore, coking coal and limestone in the approximate ratio 4 : 2 : 1. Calculate the amount of each raw material needed if the plant uses 21,000 tonnes of raw materials a day. Why are most steel plants located near the Chotanagpur plateau? (3 marks) 7. The share of manufacturing in India's GDP has remained around 17% for many years, and the National Manufacturing Policy aimed to raise it to 25%. If India's GDP is Rs 300 lakh crore, calculate the value of manufacturing output at 17% and at 25%, and the difference. (3 marks) 8. Sugarcane is a weight-losing raw material: about 100 kg of sugarcane yields roughly 10 kg of sugar. A sugar mill crushes 5,000 tonnes of cane a day. Calculate the sugar produced daily. Why are sugar mills located close to sugarcane fields? (3 marks) 9. Arrange the following events in chronological order and give the years: the first successful textile mill in Mumbai; the first jute mill at Rishra near Kolkata; the first cement plant in Chennai; the announcement of the National Jute Policy. (3 marks) 10. Study the illustrative data on production of a textile company: spinning mills produce yarn worth Rs 50 crore, of which 60% is exported and the rest is sold to handloom and powerloom weavers in India. Calculate the value of yarn exported and sold domestically. Why is the export of yarn instead of finished fabric a disadvantage for India? (3 marks) Section C - Diagrams (10 marks) 11. On an outline political map of India, locate and label: (i) a cotton textile centre (Mumbai or Ahmedabad) (ii) an iron and steel plant (Bhilai, Jamshedpur or Rourkela) (iii) a software technology park (Bengaluru or Hyderabad) (iv) a jute-producing region along the Hugli river. (4 marks) 12. Draw a flowchart showing the classification of industries on the basis of source of raw material, main role, capital investment and ownership. (3 marks) 13. Draw a flowchart of the process of manufacturing steel, from raw materials to the blast furnace, steel making, and rolling into finished products. (3 marks) Section D - Analysis and Higher-order Thinking (15 marks) 14. 'Agriculture and industry are not exclusive of each other; they move hand in hand.' Explain this statement with examples, showing how agro-industries have boosted agriculture and how agriculture depends on industrial products. (5 marks) 15. Why is India not able to perform to its full potential in iron and steel production? Discuss the problems of high costs, limited availability of coking coal, low productivity of labour, irregular supply of energy and poor infrastructure. (5 marks) 16. Industrial pollution affects air, water, land and noise. Explain the causes and effects of each type, and describe the steps that the NTPC has taken to preserve the environment. Suggest four measures for controlling industrial pollution. (5 marks) Instructions: Time allowed 2 hours. Attempt all sections. Mark all places on the outline map neatly with symbols and names. Show calculations step by step.