Multiple Choice Questions
Question 1This industry forms the backbone of the industrial economy
Ans: (c)
Explanation: The iron and steel industry supplies basic raw materials used by many other industries such as automobiles, railways, shipbuilding, machinery and defence. Because of its wide use across these sectors, it is considered the backbone of the industrial economy.
Question 2Steel pipes have been replaced by
Ans: (c)
Explanation: PVC pipes are widely used today because they are light, corrosion-resistant, cheaper to produce and easier to install than steel pipes. These advantages have led to PVC replacing steel pipes in many domestic and agricultural applications.
Question 3This city is called Silicon Valley of India
Ans: (d)
Explanation: Bengaluru is known as the Silicon Valley of India because it is the leading centre for information technology and software services, hosting a large number of software companies, research institutions and technology parks.
Question 4Tata steel company
Ans: (b)
Explanation: Tata Steel manufactures a variety of heavy engineering components, including locomotive parts. Its facilities and engineering capabilities enable production of such components for the railways and other industries.
Question 5This plant was set up in collaboration with the West German firm Krupps and Demag
Ans: (b)
Explanation: Rourkela Steel Plant was established with technical collaboration from the West German firms Krupps and Demag. This collaboration helped set up an integrated plant with modern steel-making technology at the time.
Question 6Bhilai Iron and Steel plant gets its iron ore from
Ans: (c)
Explanation: Bhilai Steel Plant obtains its iron ore largely from the Dalli-Rajhara range, which lies relatively close to Bhilai. Proximity to these ore deposits reduces transport costs and supports the plant's raw material needs.
Question 7Rourkela steel plant gets its supply of fresh water from
Ans: (b)
Explanation: Rourkela Steel Plant draws its fresh water supply from the river Brahmani. A reliable water source is essential for cooling and various industrial processes in steel plants.
Question 8This Iron and steel plant is most sophisticated and modern steel plant
Ans: (b)
Explanation: The Visakhapatnam steel plant is noted for being highly modern and sophisticated, with up-to-date technology and integrated facilities, which distinguishes it from several older plants.
Question 9This steel plant is managed by Rashtriya Ispat Nigam
Ans: (d)
Explanation: The Visakhapatnam steel plant is managed by Rashtriya Ispat Nigam Limited (RINL). RINL runs the integrated steel complex at Visakhapatnam.
Question 10Indian Space Research Organization (ISRO) is at
Ans: (d)
Explanation: The Indian Space Research Organisation (ISRO) is headquartered in Bengaluru, which is home to major ISRO centres and research facilities involved in India's space programme.
Answer the following questions
Question 1What comprises the electronic goods?
Ans: The electronic goods comprise television sets, transistor sets, telephone exchanges, cellular telecom equipment, paging devices, computers and varied equipment used by the defence, railway and meteorological departments.
Question 2Name the leading software centers of India.
Ans: Bengaluru and Hyderabad are the leading software centres of India.
Question 3What does NRSA stand for? Where is this center?
Ans: NRSA stands for National Remote Sensing Agency. This centre is located at Hyderabad.
Question 4What are petrochemicals?
Ans: Petrochemicals are chemical substances obtained from petroleum or natural gas. They include products such as various grades of gasoline, kerosene and feedstocks used to make plastics and synthetic materials.
Question 5Name its main raw materials used in the petrochemical industry.
Ans: The main raw materials used in the petrochemical industry are petroleum (crude oil), liquefied petroleum gas (LPG) and coal.
Question 6Name the main products of the petrochemical industry.
Ans: The main products of the petrochemical industry include:
How important are petrochemicals?
Ans: Petrochemicals are important because:
Name a few important petrochemical industries.
Ans: A few important petrochemical industries are:
Classify industries according to (a) the source of raw material (b) the size and (c) the management.
Ans:
(a) Classification of industries according to the source of raw material:
(b) Classification of industries according to the size:
(c) Classification of industries according to the management:
List some mineral-based industries.
Ans: Some mineral-based industries are:
Name a few important factors that are responsible for the location of or development of, industries in a particular area.
Ans: A few important factors responsible for the location or development of industries in a particular area are:
What is an integrated steel plant?
Ans: An integrated steel plant is one where all processes - from melting iron ore in the blast furnace to steel-making and shaping the metal by rolling - are carried out within one complex.
Question 13What are the raw materials needed for the iron and steel industry?
Ans: The raw materials needed for the iron and steel industry are iron ore, coking coal and limestone.
Question 14What are mini-steel plants? What are their advantages?
Ans: Mini-steel plants are units that manufacture steel using scrap iron in electric arc furnaces. They are decentralised secondary units.
The advantages of mini-steel plants are:
Name the various steel plants that are located in India. Name their collaborators.
Ans: The steel plants located in India are:
From where does Bhilai Steel Plant get its iron ore and limestone?
Ans: Bhilai Steel Plant gets its iron ore from the Dalli-Rajhara range. It obtains coal from Korba and Kargati fields of Chhattisgarh and from the Jharia and Bokaro coalfields.
Question 17Why is iron and steel industry called a key or a basic industry?
Ans: The iron and steel industry is called a key or basic industry because it supplies essential raw materials required by many other major industries such as automobiles, locomotives, rail tracks, shipbuilding, machinery, tools and defence equipment.
Question 18Why are forests grown in and around steel cities?
Ans: Forests are grown in and around steel cities because steel manufacturing produces air pollutants and dust. Trees act as barriers that trap dust and help clean the air, thereby reducing pollution and improving environmental quality around these cities.
Question 19Name two iron and steel industries, which have been set up by two different foreign collaborators. Also, name the regions from where coal and iron ore are obtained by the two steel plants named by you.
Ans:
With reference to the Iron and Steel plant located at Jamshedpur, answer the following questions:
Ans:
Where is the latest integrated Iron and Steel Plant of India located?
Ans: The latest integrated Iron and Steel Plant of India is located at Visakhapatnam.
Question 22What two advantages do the Vishakhapatnam steel plant have over the other steel plants in the public sector?
Ans: Two advantages of the Visakhapatnam steel plant are:
Which is the largest mineral-based industry in India? Why is it called a key or basic industry?
Ans: The largest mineral-based industry in India is the iron and steel industry. It is called a key or basic industry because it provides fundamental raw materials used by many other important industries such as automobiles, railways, shipbuilding, machinery, tools and defence.
Question 24Why is this industry concentrated in the Chhotanagpur region? Which is the oldest and privately owned plant?
Ans: The iron and steel industry is concentrated in the Chhotanagpur region because:
The oldest privately owned plant is the Tata Iron and Steel Company (TISCO), now known as Tata Steel.
Question 25Name four large-scale industries dependent on this industry.
Ans: Four large-scale industries dependent on the iron and steel industry are:
Give reason -
Ans:
| 1. What are mineral-based industries? | ![]() |
| 2. What is the importance of the iron and steel industry in India? | ![]() |
| 3. How does the cement industry impact the economy? | ![]() |
| 4. What are the challenges faced by mineral-based industries in India? | ![]() |
| 5. What role do mineral-based industries play in employment generation? | ![]() |