Manufacturing Industries · Class 10 Geography: 225 MCQs with answers

Showing 200 of 225 multiple-choice questions from this kit.

Warm-up · 53 questions

Q1. A mill takes in sugarcane and sends out sacks of sugar in large quantities. Which term from the chapter best describes this activity?

Beginner
A Primary activity B Trading C Manufacturing D Mining
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Manufacturing

Processing raw materials into more valuable products in large quantities is manufacturing.

Q2. Workers in steel factories, car plants, breweries and bakeries all belong to which sector, according to the chapter?

Beginner
A The primary sector B The secondary sector C The tertiary sector D The household sector only
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The secondary sector

They turn primary materials into finished goods.

Q3. A factory making PVC pipes sells most of its output to farmers for irrigation. What does this example illustrate?

Beginner
A That industry supplies agriculture as well as depending on it B That industry and agriculture are exclusive of each other C That PVC pipes are an agro-based product D That farmers do not need manufactured goods
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That industry supplies agriculture as well as depending on it

Agro-industries sell pipes, pumps, fertilisers and tools to farmers.

Q4. Which set lists only agro-based industries?

Beginner
A Cotton textile, sugar, edible oil B Iron and steel, cement, aluminium C Machine tools, petrochemicals, cement D Sugar, aluminium, iron and steel
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Cotton textile, sugar, edible oil

These use agricultural raw materials.

Q5. Which set lists only mineral-based industries?

Beginner
A Jute, silk, woollen textile B Iron and steel, cement, petrochemicals C Tea, coffee, rubber D Sugar, edible oil, cotton textile
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Iron and steel, cement, petrochemicals

Minerals and metals are their raw materials.

Q6. Which of the following is a consumer industry rather than a basic industry?

Beginner
A An iron and steel plant B A copper smelter C A toothpaste factory D An aluminium smelter
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A toothpaste factory

Toothpaste goes directly to consumers; the others supply raw materials.

Q7. Which pair of industries does the chapter give as examples of the public sector?

Beginner
A TISCO and Dabur B BHEL and SAIL C Bajaj Auto and TISCO D Oil India Ltd and Dabur
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BHEL and SAIL

TISCO, Bajaj Auto and Dabur are private; Oil India Ltd is joint.

Q8. A shipyard uses huge steel plates and produces vessels weighing thousands of tonnes. On the basis of bulk and weight, which type of industry is it?

Beginner
A Heavy industry B Light industry C Consumer industry D Agro-based industry
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Heavy industry

Heavy raw materials and heavy finished goods make it a heavy industry.

Q9. In Harish's Diwali market, which item did his father say is made by individual artisans in household industry?

Beginner
A Diyas B Shoes C Sugar D Clothes
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Diyas

Shoes, clothes and sugar came from large industries with machines.

Q10. Read the Assertion and Reason and choose the correct option. Assertion (A): Iron and steel is a basic industry. Reason (R): Iron and steel is also classified as a heavy industry on the basis of bulk and weight.

Beginner
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
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Both A and R are true, but R is not the correct explanation of A

Both are true, but being a heavy industry is a separate classification; what makes it a basic industry is that its products feed other industries.

Q11. A farmer's son takes a job in a tractor factory and the family no longer depends only on the harvest. Which benefit of manufacturing does this show?

Beginner
A It ends the need for agriculture B It reduces heavy dependence on agricultural income by providing jobs C It increases regional disparities D It reduces the value of finished goods
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It reduces heavy dependence on agricultural income by providing jobs

Jobs in secondary and tertiary sectors reduce reliance on farm income.

Q12. Which statement about the sugar industry in Maharashtra is supported by this part of the chapter?

Beginner
A It is an example of a joint sector industry B It is a basic industry supplying steel makers C It is an example of a cooperative sector industry D It is a mineral-based industry
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It is an example of a cooperative sector industry

The chapter cites it, with Kerala's coir industry, as cooperative.

Q13. Which of these is NOT one of the bases of classifying industries described in the chapter?

Beginner
A Source of raw materials B Ownership C The colour of the finished goods D Bulk and weight of raw materials and finished goods
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The colour of the finished goods

The five bases are raw material, main role, capital, ownership, and bulk and weight.

Q14. What does the chapter say is the measure of a country's economic strength?

Beginner
A The size of its population B The area of its forests C The number of its airports D The development of its manufacturing industries
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The development of its manufacturing industries

The chapter's opening claim.

Q15. What is manufacturing?

Beginner
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Q16. What are basic industries? Give an example.

Beginner
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Q17. A shirt passes from cotton field to shop. In which order does the textile value chain take it through spinning, fibre production, garment manufacture and weaving?

Beginner
A Spinning, fibre production, weaving, garment manufacture B Weaving, spinning, fibre production, garment manufacture C Fibre production, spinning, weaving, garment manufacture D Fibre production, weaving, spinning, garment manufacture
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Fibre production, spinning, weaving, garment manufacture

Fibre becomes yarn, yarn becomes fabric, fabric becomes garments.

Q18. A history quiz asks for the city and year of India's first successful textile mill. What is the correct answer?

Beginner
A Kolkata, 1855 B Mumbai, 1854 C Ahmedabad, 1904 D Chennai, 1854
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Mumbai, 1854

1855 is the jute mill at Rishra near Kolkata.

Q19. Where and when was India's first jute mill set up?

Beginner
A Mumbai, 1854 B Chennai, 1904 C Kanpur, 1855 D Rishra, near Kolkata, 1855
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Rishra, near Kolkata, 1855

Mumbai 1854 is the first cotton mill; Chennai 1904 the first cement plant.

Q20. Which statement about India and sugar is correct?

Beginner
A India is first in sugar and second in gur B India is second in world sugar production but first in gur and khandsari C India imports all its sugar D India produces sugar only from sugar beet
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India is second in world sugar production but first in gur and khandsari

Second in sugar, first in the traditional sweeteners.

Q21. Which two states together hold sixty per cent of India's sugar mills?

Beginner
A Uttar Pradesh and Bihar B Maharashtra and Karnataka C Tamil Nadu and Andhra Pradesh D Punjab and Haryana
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Uttar Pradesh and Bihar

The industry is old and large in the northern plains.

Q22. Which prescribed cotton textile centre lies in Madhya Pradesh?

Beginner
A Kanpur B Surat C Coimbatore D Indore
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Indore

Kanpur is in Uttar Pradesh, Surat in Gujarat, Coimbatore in Tamil Nadu.

Q23. Which of these industries does the chapter describe as having close links with agriculture, giving a living to cotton boll pluckers and ginning workers?

Beginner
A Iron and steel B Cement C Cotton textiles D Aluminium smelting
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Cotton textiles

Cotton textiles depend directly on farm cotton.

Q24. Which of these is NOT a factor the chapter gives for locating jute mills in the Hugli basin?

Beginner
A Large coal reserves beside the mills B Inexpensive water transport C Cheap labour from nearby states D Nearness to jute-producing areas
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Large coal reserves beside the mills

Coal is not among the jute location factors.

Q25. Why does the textile industry occupy a unique position in the Indian economy?

Beginner
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Q26. What factors led to the early concentration of the cotton textile industry in Maharashtra and Gujarat?

Beginner
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Q27. Why are sugar mills shifting to the southern and western states?

Beginner
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Q28. Read the Assertion and Reason and choose the correct option. Assertion (A): Iron and steel is a heavy industry. Reason (R): All its raw materials and its finished goods are both heavy and bulky, which means heavy transport costs.

Beginner
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
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Both A and R are true, and R is the correct explanation of A

Bulk and weight are what make it a heavy industry.

Q29. Which raw material is used in the largest quantity in steel making?

Beginner
A Coking coal B Limestone C Iron ore D Manganese
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Iron ore

Iron ore is four parts in the 4 : 2 : 1 ratio.

Q30. Molten material from the blast furnace is poured into moulds. What are the moulds and their product called?

Beginner
A Ingots, giving slag B Kilns, giving coke C Furnaces, giving alumina D Pigs, giving pig iron
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Pigs, giving pig iron

The moulds are called pigs.

Q31. Which set of processes belongs to the final shaping stage of steel manufacture?

Beginner
A Rolling, pressing, casting, forging B Melting, fluxing, burning coke C Mining, washing, crushing D Spinning, weaving, dyeing
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Rolling, pressing, casting, forging

Shaping metal is the fifth stage.

Q32. Which region of India has the maximum concentration of iron and steel industries?

Beginner
A The Thar desert B The Chhotanagpur plateau region C The Konkan coast D The Brahmaputra valley
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The Chhotanagpur plateau region

It has high grade raw materials close together.

Q33. Which of these is NOT listed in the chapter as a use of steel?

Beginner
A Construction material B Growing sugarcane C Defence equipment D Medical equipment
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Growing sugarcane

The others are among the chapter's uses.

Q34. Which prescribed steel plant lies in Karnataka?

Beginner
A Salem B Bhilai C Durgapur D Vijayanagar
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Vijayanagar

The book's map spells it Vijaynagar.

Q35. A student asked to name a mineral-based industry names jute textiles. What is the correction?

Beginner
A Jute is mineral based because it grows on soil B Jute is agro based; iron and steel is an example of a mineral-based industry C There are no mineral-based industries D Jute and iron and steel are both agro based
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Jute is agro based; iron and steel is an example of a mineral-based industry

Mineral-based industries use minerals and metals as raw materials.

Q36. Why is the iron and steel industry called the basic industry?

Beginner
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Q37. Why is iron and steel a heavy industry? Name its raw materials.

Beginner
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Q38. Why does the Chhotanagpur plateau have the maximum concentration of iron and steel industries?

Beginner
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Q39. Name the six prescribed iron and steel plants with their states.

Beginner
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Q40. Bauxite is the raw material for which of these industries?

Beginner
A Cement B Paper C Steel D Aluminium smelting
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Aluminium smelting

The exercise's own question: bauxite gives alumina and then aluminium.

Q41. An aircraft maker wants a metal that is light, resists corrosion and becomes strong when mixed with other metals. Which industry supplies it?

Beginner
A Aluminium smelting B Iron and steel C Cement D Copper smelting
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Aluminium smelting

These are the properties of aluminium the chapter lists.

Q42. Which event does the chapter link to the fertiliser industry expanding across the country?

Beginner
A The White Revolution B The Green Revolution C Partition in 1947 D Liberalisation of the automobile market
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The Green Revolution

Rising demand for fertilisers followed the Green Revolution.

Q43. A builder is planning bridges, dams and an airport. Which industry's product is essential to all three?

Beginner
A Aluminium B Electronics C Cement D Fertilisers
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Cement

Cement is essential for construction.

Q44. Which set lists the bulky raw materials of the cement industry?

Beginner
A Limestone, silica, gypsum B Bauxite, cryolite, coke C Cotton, jute, silk D Iron ore, manganese, chromium
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Limestone, silica, gypsum

Cement also needs coal, power and rail transport.

Q45. Where and when was India's first cement plant set up?

Beginner
A Mumbai, 1854 B Rishra, 1855 C Chennai, 1904 D Kolkata, 1904
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Chennai, 1904

Mumbai 1854 was the first textile mill; Rishra 1855 the first jute mill.

Q46. A student lists Hyderabad as India's electronic capital. What is the correction?

Beginner
A Mumbai is the electronic capital B Bengaluru is the electronic capital; Hyderabad is another important centre C There is no electronic capital D Chennai is the electronic capital
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Bengaluru is the electronic capital; Hyderabad is another important centre

Bengaluru has emerged as the electronic capital of India.

Q47. Which of these is NOT a use of aluminium named in the chapter?

Beginner
A Aircraft B Utensils C Making cement D Wires
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Making cement

Cement is made from limestone, silica and gypsum.

Q48. What are the requirements of the cement industry?

Beginner
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Q49. How did liberalisation affect the automobile industry?

Beginner
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Q50. A town has a paper mill, a refinery, a brick kiln and a noisy stone-cutting yard. Which set of pollution types does the chapter say industries can cause?

Beginner
A Air and water only B Water and noise only C Only land pollution D Air, water, land and noise
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Air, water, land and noise

The chapter lists four types of industrial pollution.

Q51. An air-quality monitor near a factory detects high levels of two gases the chapter names as causes of air pollution. Which pair is it most likely to be?

Beginner
A Oxygen and nitrogen B Helium and argon C Water vapour and oxygen D Sulphur dioxide and carbon monoxide
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Sulphur dioxide and carbon monoxide

These are the undesirable gases the chapter names.

Q52. Which set of sources does the chapter name for industrial smoke?

Beginner
A Solar farms, wind mills and tidal plants B Software parks, banks and schools C Chemical and paper factories, brick kilns, refineries and smelting plants D Orchards, tea gardens and paddy fields
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Chemical and paper factories, brick kilns, refineries and smelting plants

Also factories that burn fossil fuels and ignore norms.

Q53. A brick kiln owner wants to cut the smoke from his furnaces without closing down. What fuel change does the chapter suggest?

Beginner
A Using more coal B Using oil or gas instead of coal C Using firewood instead of gas D Burning waste plastic
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Using oil or gas instead of coal

Oil or gas produces less smoke than coal.

Building up · 111 questions

Q54. Two countries export the same quantity of raw cotton, but one also turns cotton into shirts and sells them abroad. Which idea from the chapter explains why the second is likely to be more prosperous?

Intermediate
A Raw materials always sell for more than finished goods B Exports of any kind reduce foreign exchange C Manufacturing reduces trade and commerce D Countries that transform raw materials into finished goods of higher value are prosperous
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Countries that transform raw materials into finished goods of higher value are prosperous

Value added through manufacturing brings prosperity.

Q55. Why does the chapter call industrial development a precondition for eradicating unemployment and poverty?

Intermediate
A Because industry replaces agriculture completely in every region of the country B Because factories create jobs and reduce people's heavy dependence on farm income C Because factories are always owned by the poor themselves D Because industrial goods are never exported to other countries
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Because factories create jobs and reduce people's heavy dependence on farm income

Jobs in secondary and tertiary sectors reduce dependence on agriculture.

Q56. A government sets up a public sector factory in a tribal district far from any city. Which aim of industrial policy described in the chapter does this serve?

Intermediate
A Reducing foreign exchange B Increasing dependence on agriculture C Ending all cooperative industries D Bringing down regional disparities
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Bringing down regional disparities

Industries in tribal and backward areas were meant to reduce regional disparities.

Q57. Read the Assertion and Reason and choose the correct option. Assertion (A): Agriculture and industry move hand in hand in India. Reason (R): Agro-industries depend on farms for raw materials and sell farmers pumps, fertilisers and pesticides.

Intermediate
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
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Both A and R are true, and R is the correct explanation of A

The two-way flow of goods is exactly why they move together.

Q58. An Indian toy maker sells well at home but loses export orders to foreign rivals with better finish. What lesson does the chapter draw for such a firm?

Intermediate
A Exports should be stopped altogether B Only raw materials should be exported C Quality does not matter in a globalised world D Self-sufficiency is not enough; goods must match international quality to compete
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Self-sufficiency is not enough; goods must match international quality to compete

In a globalised world, quality at par with the international market is essential.

Q59. A steel plant sells its sheets to car factories, which turn them into vehicles. Which type of industry, by main role, is the steel plant?

Intermediate
A A consumer industry B A cooperative industry C A household industry D A basic or key industry
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A basic or key industry

Its product becomes the raw material of other industries.

Q60. An entrepreneur asks whether her unit counts as small scale. What does the chapter say decides the answer?

Intermediate
A The number of workers it employs B The maximum investment allowed on the unit's assets, at present rupees one crore C The weight of its raw materials D Whether it is owned by the government
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The maximum investment allowed on the unit's assets, at present rupees one crore

Capital investment, not size or ownership, defines small scale.

Q61. A company is owned partly by the government and partly by private shareholders who run it together. Under which sector would the chapter place it?

Intermediate
A Cooperative sector B Public sector C Private sector D Joint sector
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Joint sector

Oil India Ltd is the chapter's example of such joint ownership.

Q62. Cane farmers in a Maharashtra village pool their money, run a sugar mill together and share its profits and losses. What kind of industry is this?

Intermediate
A A joint sector industry B A cooperative sector industry C A public sector industry D A heavy industry owned by the state
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A cooperative sector industry

Producers of the raw material own and run it and share profits proportionately.

Q63. Consider the following statements about ownership. 1. TISCO and Dabur are private sector industries. 2. Oil India Ltd is a joint sector industry. 3. The coir industry of Kerala is a public sector industry. Which of the statements given above are correct?

Intermediate
A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3
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1 and 2 only

The coir industry of Kerala is the chapter's example of a cooperative.

Q64. A factory makes fuse wires and electric bulbs from light raw materials. On the basis of bulk and weight, how would it be classified?

Intermediate
A Heavy industry B Basic industry C Light industry D Mineral-based heavy industry
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Light industry

Electrical goods are the chapter's example of light industry.

Q65. Which set of products, from the chapter's sorting activity, would all come from heavy industries?

Intermediate
A Knitting needles, watches B Fuse wires, paint brushes C Electric bulbs, watches D Shipbuilding, automobiles
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Shipbuilding, automobiles

Ships and vehicles use heavy, bulky materials and are heavy products.

Q66. Which of the following products is itself an industrial product that becomes the raw material for another industry, as the chapter notes?

Intermediate
A Raw cotton B Sugarcane C Yarn D Wood
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Yarn

Some clothes are made from yarn, which is already manufactured.

Q67. Which of the following correctly matches an industry with its sector of ownership?

Intermediate
A Bajaj Auto Ltd — private sector B SAIL — cooperative sector C Oil India Ltd — private sector D BHEL — joint sector
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Bajaj Auto Ltd — private sector

SAIL and BHEL are public; Oil India Ltd is joint.

Q68. An electrical goods factory and an iron and steel plant differ in which basis of classification most obviously?

Intermediate
A Bulk and weight of raw materials and finished goods B Whether they are in the secondary sector C Whether they are manufacturing industries at all D Whether their goods have any value
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Bulk and weight of raw materials and finished goods

One is the chapter's example of light industry, the other of heavy.

Q69. Consider the following statements. 1. Manufacturing industries fall in the secondary sector. 2. Agro-industries have raised the productivity of agriculture. 3. Manufacturing increases people's dependence on agricultural income. Which of the statements given above are correct?

Intermediate
A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3
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1 and 2 only

Manufacturing reduces, not increases, dependence on farm income.

Q70. Which industry would the chapter classify as both mineral based and basic?

Intermediate
A Sugar B Toothpaste C Edible oil D Aluminium smelting
Show answer & explanation

Aluminium smelting

It uses bauxite and supplies metal to other industries.

Q71. Why is the manufacturing sector considered the backbone of development?

Intermediate
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Q72. How are agriculture and industry linked?

Intermediate
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Q73. Distinguish between public, private, joint and cooperative sector industries, with an example of each.

Intermediate
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Q74. Distinguish between heavy and light industries, and between basic and consumer industries.

Intermediate
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Q75. Explain the importance of manufacturing industries for India's development.

Intermediate
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Any five points, 1 mark each. 1 mark — modernising agriculture. 1 mark — jobs reducing dependence on farm income. 1 mark — removing unemployment and poverty. 1 mark — reducing regional disparities. 1 mark — exports and foreign exchange. 1 mark — higher-value goods and prosperity. Or any other relevant point.

Q76. Classify industries on the basis of raw materials, main role, capital investment, ownership, and bulk and weight, giving examples.

Intermediate
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1 mark for each basis correctly explained with an example: raw materials, main role, capital investment, ownership, bulk and weight.

Q77. Why does the chapter say the textile industry occupies a unique position in the Indian economy?

Intermediate
A It is the only industry that uses no raw materials from agriculture at all B It is the only industry owned entirely by the government in India C It is the only industry that has never faced any foreign competition D It is the only industry self-reliant and complete in the value chain, and contributes to production, jobs and foreign exchange
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It is the only industry self-reliant and complete in the value chain, and contributes to production, jobs and foreign exchange

From raw material to the highest value added products, all within India.

Q78. Which development first brought machines into Indian cotton weaving, according to the chapter?

Intermediate
A Mill-made cloth from England B The two World Wars C Handspun khadi D Power-looms coming into use after the 18th century
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Power-looms coming into use after the 18th century

Hand spinning and handloom weaving came first; power-looms after the 18th century.

Q79. Read the Assertion and Reason and choose the correct option. Assertion (A): India's traditional cotton industries suffered a setback in the colonial period. Reason (R): Indian handspun and handwoven cloth had a worldwide market for its fineness.

Intermediate
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
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Both A and R are true, but R is not the correct explanation of A

Both are true. The earlier reputation of Indian cloth does not explain the setback; the competition from mill-made cloth does.

Q80. Why did the cotton textile industry first concentrate in the cotton-growing belt of Maharashtra and Gujarat?

Intermediate
A Because the government banned mills in every other state of India at the time B Because of raw cotton, market, transport with port facilities, labour and a moist climate C Because these states had the largest reserves of coal and iron ore D Because the climate there was dry, which cotton spinning required
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Because of raw cotton, market, transport with port facilities, labour and a moist climate

The chapter names a moist climate, not a dry one.

Q81. The two World Wars were fought in Europe while India was a British colony. How did they affect India's cotton textile industry?

Intermediate
A They destroyed all Indian cotton mills B They ended cotton cultivation in Gujarat C They shifted all mills to Kolkata D Demand for cloth in the United Kingdom gave the industry a boost
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Demand for cloth in the United Kingdom gave the industry a boost

Wartime demand for cloth in Britain helped the industry grow.

Q82. Consider the following statements about cotton textiles. 1. Spinning is centralised in Maharashtra, Gujarat and Tamil Nadu. 2. Weaving is highly decentralised. 3. Indian weaving uses all of the high quality yarn produced in the country. Which of the statements given above are correct?

Intermediate
A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3
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1 and 2 only

Weaving cannot use much of the high quality yarn, so it yields low quality fabric.

Q83. India spins world-class yarn, yet much of its woven fabric is of low quality. What reason does the chapter give?

Intermediate
A India produces no raw cotton B All the yarn is exported to England C Most of the good yarn spun in India never reaches the weaving sector D Spinning is done only by hand
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Most of the good yarn spun in India never reaches the weaving sector

The gap between spinning and weaving quality is a known weakness.

Q84. Why is weaving kept highly decentralised rather than concentrated in large mills?

Intermediate
A Because weaving machines cannot be installed in large factory buildings B Because the government does not allow any mills to weave cloth in India C To provide scope for traditional skills and designs in cotton, silk, zari and embroidery D Because decentralised weaving produces the highest quality fabric in the world
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To provide scope for traditional skills and designs in cotton, silk, zari and embroidery

Decentralisation protects traditional crafts.

Q85. A dye maker, a packaging firm and an engineering workshop all grow in a textile town. Which idea from the chapter explains this?

Intermediate
A Textiles reduce demand for chemicals B Textile towns cannot have other industries C The textile industry creates demand that supports many other industries D Engineering works depend only on jute
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The textile industry creates demand that supports many other industries

Chemicals and dyes, packaging and engineering works are named.

Q86. Which statement correctly describes India's position in the jute industry?

Intermediate
A Largest producer of raw jute and jute goods, and second exporter after Bangladesh B Largest exporter of jute goods, ahead of Bangladesh C Second producer of raw jute, after Bangladesh D A minor producer that imports most of its jute
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Largest producer of raw jute and jute goods, and second exporter after Bangladesh

First in production, second in exports.

Q87. After Partition in 1947, India's jute mills faced a raw material problem. What had happened?

Intermediate
A All the jute mills moved to Bangladesh B Three-fourths of the jute-producing area went to Bangladesh while the mills stayed in India C Jute cultivation was banned in West Bengal D The Hugli river changed its course
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Three-fourths of the jute-producing area went to Bangladesh while the mills stayed in India

Mills and fields were separated by the new border.

Q88. Consider the following factors. 1. Nearness to jute-producing areas 2. Abundant water for processing raw jute 3. A cold, dry climate Which of these does the chapter give for the location of jute mills in the Hugli basin?

Intermediate
A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3
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1 and 2 only

A cold, dry climate is not among the chapter's factors.

Q89. What does Kolkata contribute to the jute industry of the Hugli basin, according to the chapter?

Intermediate
A Most of the raw jute grown in India B Iron ore for jute machinery C Banking, insurance and port facilities for exporting jute goods D Cheap electricity from nuclear plants
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Banking, insurance and port facilities for exporting jute goods

Kolkata is the large urban centre that serves the mills.

Q90. A jute mill owner in the Hugli basin says he can hire workers cheaply. From which states does the chapter say this labour comes?

Intermediate
A Kerala, Tamil Nadu and Karnataka B Punjab, Haryana and Rajasthan C Gujarat, Maharashtra and Goa D West Bengal and the adjoining states of Bihar, Odisha and Uttar Pradesh
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West Bengal and the adjoining states of Bihar, Odisha and Uttar Pradesh

Cheap labour from nearby states is one location factor.

Q91. A farmer's cane waits three days on a truck before reaching the mill. What does the chapter say happens to it?

Intermediate
A Its sucrose content reduces during haulage B Its sucrose content increases C It turns into gur on its own D Nothing, since cane does not spoil
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Its sucrose content reduces during haulage

Cane is bulky and loses sucrose in haulage, so mills stay close to fields.

Q92. Read the Assertion and Reason and choose the correct option. Assertion (A): The sugar industry is ideally suited to the cooperative sector. Reason (R): The sugar industry runs steadily through all twelve months of the year.

Intermediate
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
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A is true but R is false

It is seasonal, which is what suits it to the cooperative sector. The assertion stands, the reason is false.

Q93. Sugar mills are shifting to Maharashtra and other southern and western states. Which set of reasons does the chapter give?

Intermediate
A Higher sucrose cane, a cooler climate with a longer crushing season, and more successful cooperatives B Cheaper coal, better ports and more iron ore C Lower rainfall, sandy soil and fewer farmers D Government bans on sugar mills in the north
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Higher sucrose cane, a cooler climate with a longer crushing season, and more successful cooperatives

All three reasons appear in the chapter.

Q94. How does a cooler climate help sugar mills in the southern and western states?

Intermediate
A It increases the weight of cane B It makes cane grow without water C It stops sucrose from forming D It ensures a longer crushing season
Show answer & explanation

It ensures a longer crushing season

A longer season means the mill runs for more months.

Q95. An outline map asks you to locate and label the prescribed cotton textile centre in Tamil Nadu. Which city should you mark?

Intermediate
A Chennai B Coimbatore C Madurai D Salem
Show answer & explanation

Coimbatore

Chennai and Madurai appear on the book's textile map but are not prescribed; Salem is a steel plant.

Q96. A student must mark the prescribed cotton textile centre on the Ganga plain in Uttar Pradesh. Which city should she choose?

Intermediate
A Indore B Kanpur C Mumbai D Surat
Show answer & explanation

Kanpur

Kanpur is the prescribed centre in Uttar Pradesh.

Q97. Which pair of prescribed cotton textile centres lies on or near the west coast?

Intermediate
A Kanpur and Indore B Coimbatore and Kanpur C Indore and Coimbatore D Mumbai and Surat
Show answer & explanation

Mumbai and Surat

Mumbai in Maharashtra and Surat in Gujarat, near the Arabian Sea.

Q98. Which set correctly pairs the prescribed cotton centres with their states?

Intermediate
A Surat, Gujarat; Indore, Madhya Pradesh; Kanpur, Uttar Pradesh B Surat, Maharashtra; Indore, Gujarat; Kanpur, Bihar C Surat, Madhya Pradesh; Indore, Uttar Pradesh; Kanpur, Gujarat D Surat, Tamil Nadu; Indore, Maharashtra; Kanpur, Punjab
Show answer & explanation

Surat, Gujarat; Indore, Madhya Pradesh; Kanpur, Uttar Pradesh

Surat in Gujarat, Indore in Madhya Pradesh, Kanpur in Uttar Pradesh.

Q99. A world trade report ranks countries for sugar and for the traditional sweeteners gur and khandsari. Which pair of rankings for India matches the chapter?

Intermediate
A First in sugar, second in gur and khandsari B Second in sugar, first in gur and khandsari C First in both D Second in both
Show answer & explanation

Second in sugar, first in gur and khandsari

India leads in gur and khandsari but is second in sugar.

Q100. A weaver in a village produces zari and embroidered cloth on a handloom. Which feature of the cotton industry does her work reflect?

Intermediate
A Centralised spinning in large mills B Decentralised weaving that incorporates traditional skills and designs C The mill sector's dominance over handlooms D Jute processing along the Hugli
Show answer & explanation

Decentralised weaving that incorporates traditional skills and designs

Weaving is decentralised to make room for such traditional skills.

Q101. Why is spinning centralised but weaving decentralised in India?

Intermediate
Show answer & explanation

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Q102. Give the factors responsible for the location of jute mills in the Hugli basin.

Intermediate
Show answer & explanation

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Q103. Why is the sugar industry ideally suited to the cooperative sector?

Intermediate
Show answer & explanation

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Q104. Describe the cotton textile industry of India — its history, location and structure.

Intermediate
Show answer & explanation

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Any five points, 1 mark each. 1 mark — hand spinning and handlooms, then power-looms. 1 mark — colonial setback. 1 mark — first mill in Mumbai, 1854. 1 mark — location factors in Maharashtra and Gujarat. 1 mark — links with agriculture and other industries. 1 mark — centralised spinning and decentralised weaving. 1 mar…

Q105. Describe the jute textile industry of India, and explain why it is concentrated in the Hugli basin.

Intermediate
Show answer & explanation

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Any five points, 1 mark each. 1 mark — largest producer, second exporter. 1 mark — mills along the Hugli, first at Rishra 1855. 1 mark — Partition's effect. 1 mark — nearness to jute areas and cheap water transport. 1 mark — transport network and water for processing. 1 mark — cheap labour. 1 mark — Kolkata's services…

Q106. A factory that makes fans, one that makes trucks and one that makes cranes all buy machinery made of steel. Which description of the iron and steel industry does this illustrate?

Intermediate
A It is a consumer industry B It is an agro-based industry C It is the basic industry, since heavy, medium and light industries depend on it for machinery D It is a light industry
Show answer & explanation

It is the basic industry, since heavy, medium and light industries depend on it for machinery

Every kind of industry depends on steel for its machinery.

Q107. Why is the production and consumption of steel often regarded as an index of a country's development?

Intermediate
A Because steel is the only metal a country is able to export B Because steel is always made entirely by hand in small workshops C Because steel goes into machinery, construction, defence and equipment across the whole economy D Because steel production needs no raw materials at all
Show answer & explanation

Because steel goes into machinery, construction, defence and equipment across the whole economy

Its wide use makes it a good measure of economic activity.

Q108. A steel maker finds its product too soft for a customer's order. Which mineral does the chapter say is added in small quantities to harden steel?

Intermediate
A Bauxite B Mica C Gypsum D Manganese
Show answer & explanation

Manganese

Some quantities of manganese are required to harden the steel.

Q109. Consider the following statements about the blast furnace stage. 1. Iron ore is melted. 2. Slag is removed. 3. Nickel and chromium are added. Which of the statements given above are correct?

Intermediate
A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3
Show answer & explanation

1 and 2 only

Nickel and chromium are added at the later steel making stage.

Q110. A worker explains that at his stage pig iron is melted again, impurities are oxidised and chromium is added. Which stage of the chapter's flow chart is he in?

Intermediate
A Blast furnace B Shaping metal C Steel making D Transport of raw material
Show answer & explanation

Steel making

Purifying pig iron and adding alloys is the steel making stage.

Q111. What is the correct order of stages in making steel?

Intermediate
A Blast furnace, transport, shaping metal, pig iron, steel making B Pig iron, blast furnace, transport, steel making, shaping metal C Transport, blast furnace, pig iron, steel making, shaping metal D Shaping metal, steel making, pig iron, blast furnace, transport
Show answer & explanation

Transport, blast furnace, pig iron, steel making, shaping metal

Raw materials arrive, are smelted, cast, purified, then shaped.

Q112. Which set of advantages does the chapter give for the concentration of steel plants on the Chhotanagpur plateau?

Intermediate
A Coastal ports, cheap hydel power, sandy soil and cold winters B Oil refineries, gas pipelines, tea gardens and tourism C Low cost iron ore, high grade raw materials in proximity, cheap labour and a large home market D Software parks, airports, universities and film studios
Show answer & explanation

Low cost iron ore, high grade raw materials in proximity, cheap labour and a large home market

All four advantages are in the chapter.

Q113. An outline map asks you to locate and label the steel plant in Chhattisgarh. Which prescribed plant should you mark?

Intermediate
A Bokaro B Salem C Durgapur D Bhilai
Show answer & explanation

Bhilai

Bhilai is the public sector plant in Chhattisgarh.

Q114. Which two prescribed iron and steel plants are in Jharkhand?

Intermediate
A Durgapur and Bhilai B Bokaro and Jamshedpur C Salem and Vijayanagar D Jamshedpur and Durgapur
Show answer & explanation

Bokaro and Jamshedpur

Durgapur is in West Bengal.

Q115. A student marks the prescribed steel plant in West Bengal. Which one should it be?

Intermediate
A Burnpur B Durgapur C Bokaro D Rourkela
Show answer & explanation

Durgapur

Burnpur is also in West Bengal on the book's map but is not prescribed.

Q116. Which pair of prescribed steel plants lies in South India?

Intermediate
A Bhilai and Bokaro B Durgapur and Jamshedpur C Vijayanagar and Salem D Salem and Bhilai
Show answer & explanation

Vijayanagar and Salem

Vijayanagar is in Karnataka and Salem in Tamil Nadu.

Q117. One steel plant stands beside coal and iron ore deposits in Jharkhand; another must bring both by rail from hundreds of kilometres away. Which is likely to have lower raw material transport costs, by the chapter's reasoning?

Intermediate
A The plant beside the deposits, since the raw materials are heavy and bulky B The distant plant, since rail transport is free C Both equally, since distance does not matter D Neither, since steel needs no raw materials
Show answer & explanation

The plant beside the deposits, since the raw materials are heavy and bulky

Heavy, bulky inputs make distance expensive.

Q118. Which three metals does the chapter say are added when pig iron is turned into steel?

Intermediate
A Copper, zinc and lead B Manganese, nickel and chromium C Aluminium, tin and gold D Uranium, thorium and iron
Show answer & explanation

Manganese, nickel and chromium

They are added at the steel making stage.

Q119. Consider the following statements. 1. Iron ore, coking coal and limestone are used in the ratio of about 4 : 2 : 1. 2. Manganese is used to harden steel. 3. Limestone is burnt to heat the ore. Which of the statements given above are correct?

Intermediate
A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3
Show answer & explanation

1 and 2 only

Coke heats the ore; limestone is the flux.

Q120. Why do steel plants need an efficient transport network even after being placed near raw materials?

Intermediate
A Because steel plants make no products B Because raw materials are always imported C Because steel is too light to transport D Because finished steel products must be distributed to markets and consumers
Show answer & explanation

Because finished steel products must be distributed to markets and consumers

The chapter reminds you that finished products need transport too.

Q121. Which statement about slag is correct, according to the chapter's flow chart?

Intermediate
A Slag is removed at the blast furnace stage B Slag is the finished steel C Slag is added to harden steel D Slag is the mould for pig iron
Show answer & explanation

Slag is removed at the blast furnace stage

Limestone flux helps separate slag, which is removed.

Q122. Describe what happens in the blast furnace.

Intermediate
Show answer & explanation

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Q123. What should be considered in deciding where a steel plant is located?

Intermediate
Show answer & explanation

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Q124. Describe the process of manufacturing steel.

Intermediate
Show answer & explanation

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Any five points, 1 mark each. 1 mark — raw materials and ratio. 1 mark — transport to the plant. 1 mark — blast furnace with coke and limestone flux. 1 mark — slag removed. 1 mark — pig iron in moulds. 1 mark — purification with manganese, nickel, chromium. 1 mark — shaping by rolling, pressing, casting, forging. Or an…

Q125. Why is the iron and steel industry important, and what factors influence its location?

Intermediate
Show answer & explanation

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Any five points, 1 mark each. 1 mark — basic industry. 1 mark — uses or index of development. 1 mark — heavy industry with raw materials and ratio. 1 mark — nearness to raw materials. 1 mark — transport to markets. 1 mark — Chhotanagpur advantages. Or any other relevant point.

Q126. Which one of the following industries manufactures telephones, computers, etc.?

Intermediate
A Steel B Electronic C Aluminium smelting D Information technology
Show answer & explanation

Electronic

The exercise's own question: the electronics industry makes the equipment; IT is the wider field of software and services.

Q127. A company plans an aluminium smelter. Which two factors does the chapter call prime for choosing the site?

Intermediate
A A moist climate and nearness to cotton fields B A port on the east coast and cheap migrant labour C Nearness to oil refineries and a large city market D Power that does not fail, and raw material it can count on at the lowest possible cost
Show answer & explanation

Power that does not fail, and raw material it can count on at the lowest possible cost

Smelting uses huge amounts of power and bulky bauxite.

Q128. Read the Assertion and Reason and choose the correct option. Assertion (A): Aluminium has gained popularity in many industries. Reason (R): It is used as a substitute for steel, copper, zinc and lead because it is light, corrosion resistant and malleable.

Intermediate
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
Show answer & explanation

Both A and R are true, and R is the correct explanation of A

Its properties explain its growing use.

Q129. Which set lists only states with aluminium smelting plants, according to the chapter?

Intermediate
A Punjab, Haryana, Rajasthan B Odisha, Kerala, Chhattisgarh C Assam, Meghalaya, Nagaland D Goa, Bihar, Himachal Pradesh
Show answer & explanation

Odisha, Kerala, Chhattisgarh

The chapter names Odisha, West Bengal, Kerala, Uttar Pradesh, Chhattisgarh, Maharashtra and Tamil Nadu.

Q130. A soap factory, a glass factory and a paper mill all buy the same inorganic chemical. Which is it most likely to be?

Intermediate
A Petrochemicals B Soda ash C Urea D Bauxite
Show answer & explanation

Soda ash

Soda ash is used to make glass, soaps and detergents, and paper.

Q131. A plastics and synthetic rubber factory is being set up. Near which facility would the chapter expect it?

Intermediate
A A limestone quarry B An oil refinery or petrochemical plant C A jute mill D A software technology park
Show answer & explanation

An oil refinery or petrochemical plant

These are organic chemical products.

Q132. What does the chapter mean by calling the chemical industry 'its own largest consumer'?

Intermediate
A Chemical workers buy most of the chemicals for personal use B Basic chemicals are processed to produce other chemicals, so the industry uses much of its own output C The industry exports nothing and imports everything D Chemical factories burn their own products as fuel
Show answer & explanation

Basic chemicals are processed to produce other chemicals, so the industry uses much of its own output

Chemicals feed further chemical production.

Q133. Consider the following statements about chemicals. 1. Sulphuric acid is used to make fertilisers and synthetic fibres. 2. Inorganic chemical industries are widely spread over the country. 3. Petrochemicals are inorganic chemicals. Which of the statements given above are correct?

Intermediate
A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3
Show answer & explanation

1 and 2 only

Petrochemicals are organic chemicals.

Q134. Why is potash the one fertiliser nutrient India imports entirely?

Intermediate
A Potash is banned in Indian agriculture B Potash is made only from petroleum C India exports all its potash D India has no reserves of commercially usable potash or potassium compounds
Show answer & explanation

India has no reserves of commercially usable potash or potassium compounds

No usable reserves means complete import dependence.

Q135. Which set of states produces about half of India's fertilisers?

Intermediate
A Gujarat, Tamil Nadu, Uttar Pradesh, Punjab, Kerala B Assam, Bihar, Odisha, Goa, Delhi C Rajasthan, Madhya Pradesh, Karnataka, Maharashtra, West Bengal D Himachal Pradesh, Uttarakhand, Sikkim, Tripura, Manipur
Show answer & explanation

Gujarat, Tamil Nadu, Uttar Pradesh, Punjab, Kerala

The others are named only as significant producers, or not at all.

Q136. A paint maker, an adhesives maker, a fertiliser plant and a synthetic fibre mill all buy the same basic inorganic acid. Which chemical does the chapter link to all these uses?

Intermediate
A Caustic soda B Soda ash C Sulphuric acid D Petrochemicals
Show answer & explanation

Sulphuric acid

Sulphuric acid is used for fertilisers, synthetic fibres, plastics, adhesives, paints and dyes.

Q137. Why do cement plants in Gujarat have an advantage in exports?

Intermediate
A They have suitable access to markets in the Gulf countries B Gujarat has the only limestone in India C Gujarat's plants need no electricity D Cement cannot be sold within India
Show answer & explanation

They have suitable access to markets in the Gulf countries

Location near the sea and the Gulf helps.

Q138. Read the Assertion and Reason and choose the correct option. Assertion (A): The automobile industry in India declined after liberalisation. Reason (R): New and contemporary models stimulated demand for vehicles.

Intermediate
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
Show answer & explanation

A is false but R is true

It grew, so the assertion is false. The reason gives what drove the growth.

Q139. Which set lists only centres of the automobile industry named in the chapter?

Intermediate
A Gurugram, Pune, Jamshedpur B Rishra, Bhilai, Salem C Kandla, Paradip, Haldia D Digboi, Kalol, Ankaleshwar
Show answer & explanation

Gurugram, Pune, Jamshedpur

The other sets are a jute mill and steel plants, ports, and oil fields.

Q140. A state government wants to create jobs for large numbers of educated young people in its cities. Why would promoting the IT and electronics industry suit this aim, according to the chapter?

Intermediate
A The industry needs no workers at all B The industry is located only in villages C The industry's major impact has been on employment generation D The industry mainly produces fertilisers
Show answer & explanation

The industry's major impact has been on employment generation

Employment generation is the chapter's stated major impact.

Q141. An outline map asks you to locate and label the software technology park in Kerala. Which city should you mark?

Intermediate
A Kochi B Coimbatore C Mysuru D Thiruvananthapuram
Show answer & explanation

Thiruvananthapuram

Thiruvananthapuram is the prescribed park in Kerala.

Q142. Which prescribed software technology park lies in Gujarat?

Intermediate
A Surat B Kandla C Ahmedabad D Gandhinagar
Show answer & explanation

Gandhinagar

Surat is a cotton centre; Kandla is a port.

Q143. Which pair of prescribed software technology parks lies in Maharashtra?

Intermediate
A Mumbai and Pune B Pune and Hyderabad C Noida and Mumbai D Chennai and Pune
Show answer & explanation

Mumbai and Pune

Hyderabad is in Telangana, Noida in Uttar Pradesh, Chennai in Tamil Nadu.

Q144. Which set correctly pairs software technology parks with their states?

Intermediate
A Hyderabad, Karnataka; Bengaluru, Tamil Nadu; Chennai, Kerala B Hyderabad, Tamil Nadu; Bengaluru, Telangana; Chennai, Karnataka C Hyderabad, Telangana; Bengaluru, Karnataka; Chennai, Tamil Nadu D Hyderabad, Kerala; Bengaluru, Andhra Pradesh; Chennai, Telangana
Show answer & explanation

Hyderabad, Telangana; Bengaluru, Karnataka; Chennai, Tamil Nadu

Each southern park with its correct state.

Q145. Why is aluminium important, and what are the prime factors for locating aluminium smelters?

Intermediate
Show answer & explanation

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Q146. Distinguish between inorganic and organic chemicals.

Intermediate
Show answer & explanation

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Q147. Describe the fertiliser industry of India.

Intermediate
Show answer & explanation

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Q148. Describe the information technology and electronics industry of India.

Intermediate
Show answer & explanation

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Q149. Describe the aluminium smelting industry of India.

Intermediate
Show answer & explanation

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Any five points, 1 mark each. 1 mark — second most important metallurgical industry. 1 mark — properties of aluminium. 1 mark — uses or substitution. 1 mark — bauxite to alumina to aluminium. 1 mark — two prime location factors. 1 mark — states with plants. Or any other relevant point.

Q150. Describe the chemical and fertiliser industries of India.

Intermediate
Show answer & explanation

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Any five points, 1 mark each. 1 mark — fast growing chemical industry. 1 mark — inorganic chemicals, uses and spread. 1 mark — organic chemicals near refineries. 1 mark — its own largest consumer. 1 mark — types of fertiliser and imported potash. 1 mark — Green Revolution and leading states. Or any other relevant point…

Q151. Read the Assertion and Reason and choose the correct option. Assertion (A): Thermal power plants are among the polluting industries. Reason (R): Thermal plants draw their water from rivers and return it once it has cooled fully.

Intermediate
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
Show answer & explanation

A is true but R is false

Hot water is drained back before cooling, and that is the pollution. The assertion holds, the reason is false.

Q152. Why does the chapter mention the Bhopal gas tragedy?

Intermediate
A As an example of how hazardous a toxic gas leak can be, with long-term effects B As an example of successful effluent treatment by an industry C As an example of noise pollution from generators and drills D As an example of the NTPC's green belt programme
Show answer & explanation

As an example of how hazardous a toxic gas leak can be, with long-term effects

Toxic gas leaks are part of the air pollution section.

Q153. A river below an industrial town is coloured, foamy and carries traces of lead and mercury. Which group of industries does the chapter name as the main culprits?

Intermediate
A Software parks and automobile showrooms B Tea gardens and coffee plantations C Wind farms and solar plants D Paper, pulp, chemical, textile and dyeing, refineries, tanneries and electroplating
Show answer & explanation

Paper, pulp, chemical, textile and dyeing, refineries, tanneries and electroplating

They release dyes, detergents, acids, salts and heavy metals.

Q154. Which set names the major solid wastes of Indian industry?

Intermediate
A Cotton, jute, silk B Urea, potash, DAP C Fly ash, phospho-gypsum, iron and steel slags D Bauxite, mica, limestone
Show answer & explanation

Fly ash, phospho-gypsum, iron and steel slags

These are the chapter's major solid wastes.

Q155. Read the Assertion and Reason and choose the correct option. Assertion (A): Soil and water pollution are closely related. Reason (R): Industrial effluents and solid wastes are among the chief polluters of soil.

Intermediate
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
Show answer & explanation

Both A and R are true, but R is not the correct explanation of A

Both are true, but naming what pollutes the soil does not explain how the soil's pollution reaches the groundwater.

Q156. Consider the following statements. 1. Wastes from nuclear facilities can cause cancers and birth defects. 2. Dumping of glass, packaging and salts can render soil useless. 3. Noise pollution has no physiological effects. Which of the statements given above are correct?

Intermediate
A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3
Show answer & explanation

1 and 2 only

Noise can cause hearing impairment and raise heart rate and blood pressure.

Q157. Workers at a construction site near pneumatic drills report headaches, stress and trouble hearing. Which effects of noise pollution named in the chapter are they showing?

Intermediate
A Stress and hearing impairment B Birth defects and miscarriages C Soil infertility D Thermal pollution
Show answer & explanation

Stress and hearing impairment

Noise also raises heart rate and blood pressure.

Q158. A factory discharges 1,000 litres of untreated waste water into a lake. By the chapter's estimate, how much fresh water could it pollute?

Intermediate
A About 1,000 litres B About 800 litres C About 8,000 litres D About 100 litres
Show answer & explanation

About 8,000 litres

Every litre of waste water pollutes eight times as much fresh water.

Q159. A textile unit uses the same water for washing fibres, then for cooling machines, then for cleaning floors. Which pollution-control step is it following?

Intermediate
A Using oil instead of coal B Reusing and recycling water in two or more successive stages C Fitting electrostatic precipitators D Planting green belts
Show answer & explanation

Reusing and recycling water in two or more successive stages

Reuse reduces the fresh water needed and the waste water produced.

Q160. A factory collects rain from its roofs to run its boilers instead of pumping ground water. How does this help, according to the chapter?

Intermediate
A Harvesting rainwater meets water needs and reduces pressure on fresh water sources B It cools the factory's smoke C It reduces noise from generators D It increases thermal pollution
Show answer & explanation

Harvesting rainwater meets water needs and reduces pressure on fresh water sources

Rainwater harvesting is one of the chapter's steps.

Q161. At a treatment plant, effluent is screened, ground, flocculated and allowed to settle. Which phase of treatment is this?

Intermediate
A Primary treatment by mechanical means B Secondary treatment by biological process C Tertiary treatment by chemical means D Thermal treatment
Show answer & explanation

Primary treatment by mechanical means

Screening, grinding, flocculation and sedimentation are mechanical.

Q162. Which phase of effluent treatment uses biological, chemical and physical processes and involves recycling waste water?

Intermediate
A Primary B Tertiary C Secondary D Preliminary
Show answer & explanation

Tertiary

Secondary is biological only; primary is mechanical.

Q163. Consider the following statements about treating industrial effluents. 1. Primary treatment is mechanical. 2. Secondary treatment is a biological process. 3. Tertiary treatment uses only mechanical screening. Which of the statements given above are correct?

Intermediate
A 1 and 2 only B 2 and 3 only C 1 and 3 only D 1, 2 and 3
Show answer & explanation

1 and 2 only

Tertiary treatment is biological, chemical and physical.

Q164. A factory's smoke stack releases heavy dust. Which set of devices does the chapter suggest fitting to it?

Intermediate
A Silencers and earplugs B Electrostatic precipitators, fabric filters, scrubbers and inertial separators C Floodgates and turbines D Solar panels and wind mills
Show answer & explanation

Electrostatic precipitators, fabric filters, scrubbers and inertial separators

These reduce particulate matter in the air.

Topper level · 36 questions

Q165. Read the Assertion and Reason and choose the correct option. Assertion (A): The investment limit for small scale industries has always been fixed at one crore rupees. Reason (R): A small scale industry is defined by the maximum investment allowed on the assets of a unit.

Advanced
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
Show answer & explanation

A is false but R is true

The limit has changed over time; one crore is the present figure.

Q166. What is the key difference between a joint sector and a cooperative sector industry?

Advanced
A A joint sector industry is always small scale, while a cooperative is always heavy industry B A cooperative is run by the government alone, while a joint sector industry has no government role C A joint sector industry is run by the state with individuals; a cooperative is owned by producers, suppliers or workers who share profits and losses D There is no difference; the chapter uses the two terms for the same thing
Show answer & explanation

A joint sector industry is run by the state with individuals; a cooperative is owned by producers, suppliers or workers who share profits and losses

The owners differ: state plus private, or the members themselves.

Q167. A cotton textile mill uses farm cotton, sells cloth directly to shoppers, and is owned by a private company. Which set of labels fits it?

Advanced
A Mineral based, basic, public sector B Agro based, basic, joint sector C Agro based, consumer, private sector D Mineral based, consumer, cooperative sector
Show answer & explanation

Agro based, consumer, private sector

One industry can be classified in several ways at once.

Q168. Which statement best explains why the chapter calls the manufacturing sector the backbone of economic development?

Advanced
A It is the only sector in which people are employed in India today B It requires no raw materials from agriculture or mining at all C It modernises agriculture, creates jobs, reduces poverty and regional disparity, and earns foreign exchange D It reduces trade and commerce so that the country becomes self-sufficient
Show answer & explanation

It modernises agriculture, creates jobs, reduces poverty and regional disparity, and earns foreign exchange

The chapter lists all these contributions together.

Q169. Why would a country that exports only raw materials earn less foreign exchange than one that exports manufactured goods made from them?

Advanced
A Because raw materials cannot be exported under international law B Because manufacturing adds value, so finished goods sell for more than the raw materials in them C Because foreign buyers pay only for goods made by hand D Because manufactured goods need no raw materials at all
Show answer & explanation

Because manufacturing adds value, so finished goods sell for more than the raw materials in them

Processing turns raw materials into more valuable products.

Q170. 'Agriculture and industry are not exclusive of each other.' Explain, and say why Indian industry must also look beyond self-sufficiency.

Advanced
Show answer & explanation

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Any five points, 1 mark each. 1 mark — agro industries depend on farm raw materials. 1 mark — industry supplies farm inputs, with examples. 1 mark — raised productivity and efficiency. 1 mark — jobs reducing dependence on farm income. 1 mark — self-sufficiency not enough. 1 mark — quality at par with the international…

Q171. A student asks why Mahatma Gandhi laid emphasis on spinning yarn and weaving khadi. Which answer draws best on the chapter?

Advanced
A Khadi is the only cloth that can be exported B Khadi needs no raw cotton C Hand-spun khadi employs weavers in very large numbers, working from home as a cottage industry D Khadi mills are owned by the government
Show answer & explanation

Hand-spun khadi employs weavers in very large numbers, working from home as a cottage industry

Home-based employment is the chapter's stated benefit of khadi.

Q172. Why might keeping mill-sector loomage lower than powerloom and handloom be important for India?

Advanced
A Decentralised looms spread employment across homes and villages and keep traditional skills alive B Mills produce cloth that nobody in India wants to buy C Handlooms and powerlooms need no labour at all to run D Mills cannot use cotton as a raw material
Show answer & explanation

Decentralised looms spread employment across homes and villages and keep traditional skills alive

The same reasoning as khadi: more livelihoods, preserved skills.

Q173. Why would a cotton mill in Mumbai in the 19th century have had an advantage for exporting cloth?

Advanced
A Mumbai had the largest jute fields in India B Mumbai had a cold and dry climate ideal for spinning C Accessible port facilities were one of the factors behind the industry's location there D Mumbai was the only city with electricity
Show answer & explanation

Accessible port facilities were one of the factors behind the industry's location there

Transport, including port facilities, is among the chapter's factors.

Q174. Which statement best compares the jute and sugar industries' dependence on their raw material?

Advanced
A Both import all their raw material from abroad through major ports B Neither depends on agricultural raw materials at all C Only sugar depends on agriculture; jute is mineral based D Both stay near their crops: jute mills near jute areas along the Hugli, sugar mills near cane because cane loses sucrose in haulage
Show answer & explanation

Both stay near their crops: jute mills near jute areas along the Hugli, sugar mills near cane because cane loses sucrose in haulage

Both are agro-based industries tied to their raw material areas.

Q175. 'Agro-based industries stay close to their fields.' Examine this statement with reference to the sugar and jute industries.

Advanced
Show answer & explanation

—

Any five points, 1 mark each. 1 mark — agro industries tied to raw material areas. 1 mark — cane bulky and losing sucrose. 1 mark — sixty per cent in Uttar Pradesh and Bihar. 1 mark — seasonal industry suited to cooperatives. 1 mark — shift south and west with reasons. 1 mark — jute near jute areas with water and trans…

Q176. A plant manager orders 400 tonnes of iron ore for a batch. Roughly how much coking coal and limestone should she order, using the chapter's ratio?

Advanced
A 100 tonnes of coking coal and 200 tonnes of limestone B 200 tonnes of coking coal and 100 tonnes of limestone C 400 tonnes of each D 800 tonnes of coking coal and 1,600 tonnes of limestone
Show answer & explanation

200 tonnes of coking coal and 100 tonnes of limestone

The ratio is about 4 : 2 : 1.

Q177. A blast furnace runs short of limestone but still has plenty of coke and iron ore. Which job in the furnace would suffer, according to the chapter's flow chart?

Advanced
A Heating the ore B Supplying the iron C Pouring the metal into pigs D Fluxing, which helps remove impurities as slag
Show answer & explanation

Fluxing, which helps remove impurities as slag

Limestone is the flux; coke still supplies the heat.

Q178. A furnace crew has iron ore and limestone ready but the coke delivery is late. Which part of the blast furnace process cannot begin, and why?

Advanced
A Fluxing, because coke is the flux B Melting the ore, because coke is burnt to heat it C Hardening, because coke hardens steel D Shaping, because coke is needed for forging
Show answer & explanation

Melting the ore, because coke is burnt to heat it

Coke is the fuel that heats the ore.

Q179. A planner must choose a site for a new steel plant. Which two considerations does the chapter ask him to balance?

Advanced
A Nearness to heavy raw materials and an efficient transport network to reach markets B Nearness to the sea and distance from any coal C A cold climate and nearness to forests D Nearness to cotton fields and a moist climate
Show answer & explanation

Nearness to heavy raw materials and an efficient transport network to reach markets

Raw materials are heavy, but finished steel must also reach consumers.

Q180. Read the Assertion and Reason and choose the correct option. Assertion (A): Steel plants tend to be located close to their raw materials. Reason (R): The raw materials of steel are light and cheap to transport over long distances.

Advanced
A Both A and R are true, and R is the correct explanation of A B Both A and R are true, but R is not the correct explanation of A C A is true but R is false D A is false but R is true
Show answer & explanation

A is true but R is false

The raw materials are heavy and bulky, which is exactly why plants stay near them.

Q181. A student lists Rourkela, Vishakhapatnam and Bhadravati among her prescribed steel map items. What is wrong?

Advanced
A They appear on the book's map but are not among the six prescribed plants B They are cotton textile centres C They are software technology parks D They are not in India
Show answer & explanation

They appear on the book's map but are not among the six prescribed plants

The prescribed six are Durgapur, Bokaro, Jamshedpur, Bhilai, Vijayanagar and Salem.

Q182. Why does Bokaro appear in two different sections of the Class 10 map list?

Advanced
A It is both a port and an airport B It is both a cotton centre and a software park C It is both a nuclear station and a dam D It is both a coal mine and an iron and steel plant
Show answer & explanation

It is both a coal mine and an iron and steel plant

Coal and steel sit side by side there.

Q183. A student confuses the roles of the two materials burnt or added in the blast furnace. Which statement sets it right?

Advanced
A Limestone is burnt to heat the ore, while coke acts as the flux B Coke is burnt to heat the ore, while limestone acts as the flux and helps remove slag C Both coke and limestone are poured into pigs D Neither is used in the blast furnace
Show answer & explanation

Coke is burnt to heat the ore, while limestone acts as the flux and helps remove slag

Fuel and flux are different jobs.

Q184. Why would a steel plant far from both its iron ore and its coal struggle to compete, according to the chapter's reasoning?

Advanced
A Iron ore cannot be transported at all B Coal loses all its heat when moved C Steel can only be sold where it is made D Its heavy, bulky raw materials would entail heavy transport costs
Show answer & explanation

Its heavy, bulky raw materials would entail heavy transport costs

Transport costs are a defining problem of heavy industry.

Q185. Which statement best explains why the chapter calls iron and steel both 'basic' and 'heavy'?

Advanced
A It is basic because other industries depend on it for machinery, and heavy because its raw materials and products are bulky B It is basic because it is small, and heavy because it is owned by the government C It is basic because it uses farm products, and heavy because it employs many workers D The two words mean the same thing
Show answer & explanation

It is basic because other industries depend on it for machinery, and heavy because its raw materials and products are bulky

The two labels come from different bases of classification.

Q186. A town has cheap labour and a growing market but must bring in iron ore from far away. Compared with the Chhotanagpur plateau, what advantage is it missing?

Advanced
A Cheap labour B Home market growth C Any need for steel D Low cost iron ore and high grade raw materials in proximity
Show answer & explanation

Low cost iron ore and high grade raw materials in proximity

Chhotanagpur's lead rests on nearby, cheap, high grade raw materials.

Q187. Which pair of prescribed steel plants lies closest to the Damodar valley coalfields of West Bengal and Jharkhand?

Advanced
A Salem and Vijayanagar B Bhilai and Salem C Durgapur and Bokaro D Vijayanagar and Bhilai
Show answer & explanation

Durgapur and Bokaro

Both lie in the Damodar valley region, near Raniganj and Jharia.

Q188. 'The Chhotanagpur plateau is the heartland of India's steel industry.' Justify, naming the prescribed plants in and around it and elsewhere.

Advanced
Show answer & explanation

—

Any five points, 1 mark each. 1 mark — maximum concentration on the plateau. 1 mark — low cost ore and high grade raw materials nearby. 1 mark — heavy industry cutting transport costs. 1 mark — cheap labour and home market. 1 mark — prescribed plants in the region. 1 mark — prescribed plants elsewhere. Or any other rel…

Q189. A smelter wants to produce 10 tonnes of aluminium. Using the chapter's chain, roughly how much alumina will it need?

Advanced
A About 10 tonnes B About 5 tonnes C About 60 tonnes D About 20 tonnes
Show answer & explanation

About 20 tonnes

Two tonnes of alumina give one tonne of aluminium.

Q190. Why would an aluminium smelter be unwise to locate where power cuts are frequent?

Advanced
A Because aluminium is made without any raw material B Because smelters run only on solar power C Because smelting needs a regular supply of electricity — about 18,600 kWh per tonne of ore D Because bauxite melts without heat
Show answer & explanation

Because smelting needs a regular supply of electricity — about 18,600 kWh per tonne of ore

Regular electricity is one of the two prime location factors.

Q191. Why are organic chemical plants located near oil refineries, while inorganic chemical plants are widely spread?

Advanced
A Inorganic chemicals are too dangerous to make near any city at all B Organic chemicals are petrochemicals made from refinery products, while inorganic chemicals have no such single source C Organic chemicals need a cold climate found only near refineries D The law forbids inorganic plants near refineries in every state
Show answer & explanation

Organic chemicals are petrochemicals made from refinery products, while inorganic chemicals have no such single source

The raw material of petrochemicals comes from refineries.

Q192. A farmer's fertiliser bag says N-P-K. Which type of fertiliser is it, and which of its nutrients must India import entirely?

Advanced
A A complex fertiliser; potash B A nitrogenous fertiliser; nitrogen C A phosphatic fertiliser; phosphate D Urea; nitrogen
Show answer & explanation

A complex fertiliser; potash

Complex fertilisers combine all three; potash (K) is entirely imported.

Q193. An entrepreneur asks where a cement plant would be economically viable. Which answer best follows the chapter's facts?

Advanced
A Near a software technology park B Near jute fields along a river C Near limestone, with coal, power and rail transport available, and access to markets D Anywhere, since cement raw materials are light
Show answer & explanation

Near limestone, with coal, power and rail transport available, and access to markets

Bulky, heavy raw materials and a bulky product make transport decisive.

Q194. A software firm and a chip-making plant both expand in the same city. Which idea from the chapter explains why both matter?

Advanced
A Only software matters to the IT industry B Only hardware matters to the IT industry C IT and electronics are unrelated industries D Continuing growth in both hardware and software is the key to the IT industry's success
Show answer & explanation

Continuing growth in both hardware and software is the key to the IT industry's success

The chapter names both halves.

Q195. A student must mark the only prescribed software technology park in North India. Which city is it?

Advanced
A Jaipur B Noida C Mohali D Srinagar
Show answer & explanation

Noida

Jaipur, Mohali and Srinagar are on the book's map but not prescribed.

Q196. Which of these cities appears on the syllabus list both as a cotton textile centre and as a software technology park?

Advanced
A Surat B Coimbatore C Noida D Mumbai
Show answer & explanation

Mumbai

Mumbai is on both lists, and is also a major sea port.

Q197. Which statement best contrasts the location of aluminium smelting with that of the IT industry?

Advanced
A Both locate only beside oil refineries on the coast of India B Aluminium locates in software parks, while IT locates near bauxite mines C Aluminium follows electricity and cheap bauxite, while IT concentrates in large cities such as Bengaluru, Noida and Hyderabad D Neither industry has any particular pattern of location in India
Show answer & explanation

Aluminium follows electricity and cheap bauxite, while IT concentrates in large cities such as Bengaluru, Noida and Hyderabad

Raw material and power pull one; cities and people pull the other.

Q198. 'Different industries are pulled to different places.' Explain with reference to aluminium, organic chemicals, cement and IT.

Advanced
Show answer & explanation

—

Any five points, 1 mark each. 1 mark — aluminium's two prime factors. 1 mark — organic chemicals near refineries. 1 mark — inorganic chemicals widely spread. 1 mark — cement's raw materials and transport. 1 mark — Gujarat's access to the Gulf. 1 mark — IT concentrated in large cities. Or any other relevant point.

Q199. Fish begin dying just downstream of a power plant, though tests find no chemicals in the water, only that it is unusually warm. What has most likely happened?

Advanced
A Noise pollution from the plant's generators B Thermal pollution — hot water drained into the river before cooling C Air pollution from sulphur dioxide D Land pollution from glass dumping
Show answer & explanation

Thermal pollution — hot water drained into the river before cooling

Heat alone, without chemicals, can harm aquatic life.

Q200. A village well turns unsafe years after a factory began dumping chemical waste and salts on nearby land. Which process from the chapter explains this?

Advanced
A Thermal pollution from the well's pump B Noise from the factory's generators C Air pollution settling only on rooftops D Rain water carries soil pollutants down, contaminating ground water
Show answer & explanation

Rain water carries soil pollutants down, contaminating ground water

Dumped waste on land eventually reaches ground water.

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