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Home/Mains Unsolved Previous Year Questions/Science & Technology

Science & Technology

date icon 2024

GS Paper 3
Q.1

What is the present world scenario of intellectual property rights with respect to life materials? Although India is second in the world to file patents, still only a few have been commercialised. Explain the reasons behind this less commercialization.
GS Paper 3
Q.2

What is the technology being employed for electronic toll collection on highways? What are its advantages and limitations? What are the proposed changes that will make this process seamless? Would this transition carry any potential hazards?
GS Paper 3
Q.3

What are asteroids? How real is the threat of them causing extinction of life? What strategies have been developed to prevent such a catastrophe?

date icon 2023

GS Paper 3
Q.1

Introduce the concept of Artificial Intelligence (AI). How does Al help clinical diagnosis? Do you perceive any threat to privacy of the individual in the use of Al in healthcare? (150 words, 10 Marks)
GS Paper 3
Q.2

Discuss several ways in which microorganisms can help in meeting the current fuel shortage. (150 words, 10 Marks)
GS Paper 3
Q.3

What is the main task of India’s third moon mission which could not be achieved in its earlier mission? List the countries that have achieved this task. Introduce the subsystems in the spacecraft launched and explain the role of the Virtual Launch Control Centre at the Vikram Sarabhai Space Centre which contributed to the successful launch from Srihari Kota. (250 words, 15 Marks)

date icon 2022

GS Paper 3
Q.1

Launched on 25th December, 2021, James Webb Space Telescope has been much in the news since then. What are its unique features which make it superior to its predecessor Space Telescopes? What are the key goals of this mission? What potential benefits does it hold for the human race? (250 words, 15 marks)
GS Paper 3
Q.2

What is the basic principle behind vaccine development? How do vaccines work? What approaches were adopted by the Indian vaccine manufacturers to produce COVID-19 vaccines? (250 words, 15 marks)

date icon 2021

GS Paper 3
Q.1

How is S-400 air defence system technically superior to any other system presently available in the world? (150 words, 10 marks)
GS Paper 3
Q.2

What are the research and developmental achievements in applied biotechnology? How will these achievements help to uplift the poorer sections of the society? (250 words, 15 marks)
GS Paper 3
Q.3

The Nobel Prize in Physics of 2014 was jointly awarded to Akasaki, Amano and Nakamura for the invention of Blue LEDs in 1990s. How has this invention impacted the everyday life of human beings? (250 words, 15 marks)

date icon 2020

GS Paper 3
Q.1

What do you understand by nanotechnology and how is it helping in health sector? (150 words, 10 marks)
GS Paper 3
Q.2

How is science interwoven deeply with our lives? What are the striking changes in agriculture triggered off by science-based technologies? (150 words, 10 marks)
GS Paper 3
Q.3

COVID-19 pandemic has caused unprecedented devastation worldwide. However, technological advancements are being availed readily to win over the crisis. Give an account of how technology was sought to aid management of the pandemic. (250 words, 15 marks)

date icon 2019

GS Paper 3
Q.1

How was India benefited from the contributions of Sir M.Visvesvaraya and Dr. M. S. Swaminathan in the fields of water engineering and agricultural science respectively? (150 words, 10 marks)
GS Paper 3
Q.2

What is India’s plan to have its own space station and how will it benefit our space programme? (150 words, 10 marks)
GS Paper 3
Q.3

How is the Government of India protecting traditional knowledge of medicine from patenting by pharmaceutical companies? (250 words, 15 marks)
GS Paper 3
Q.4

How can biotechnology help to improve the living standards of farmers? (250 words, 15 marks)

date icon 2018

GS Paper 3
Q.1

Discuss the work of ‘Bose-Einstein Statistics’ done by Prof. Satyendra Nath Bose and show how it revolutionized the field of Physics. (150 words, 10 marks)
GS Paper 3
Q.2

Why is there so much activity in the field of biotechnology in our country? How has this activity benefitted the field of biopharma? (250 words, 15 marks)
GS Paper 3
Q.3

With growing energy needs should India keep on expanding its nuclear energy programme? Discuss the facts and fears associated with nuclear energy? (250 words, 15 marks)

date icon 2017

GS Paper 3
Q.1

Stem cell therapy is gaining popularity in India to treat a wide variety of medical conditions including leukaemia, Thalassemia, damaged cornea and several burns. Describe briefly what stem cell therapy is and what advantages it has over other treatments? (150 words, 10 marks)
GS Paper 3
Q.2

India has achieved remarkable successes in unmanned space missions including the Chandrayaan and Mars Orbiter Mission, but has not ventured into manned space mission. What are the main obstacles to launching a manned space mission, both in terms of technology and logistics? Examine critically. (150 words, 10 marks)
GS Paper 3
Q.3

Give an account of the growth and development of nuclear science and technology in India. What is the advantage of fast breeder reactor programme in India? (250 words, 15 marks)

date icon 2016

GS Paper 3
Q.1

Discuss India’s achievements in the field of Space Science and Technology. How the application of this technology has helped India in its socio-economic development? (200 words, 12.5 marks)
GS Paper 3
Q.2

Why is nanotechnology one of the key technologies of the 21st century? Describe the salient features of Indian Government’s Mission on Nanoscience and Technology and the scope of its application in the development process of the country. (200 words, 12.5 marks)

date icon 2015

GS Paper 3
Q.1

What do you understand by ‘Standard Positioning Systems’ and ‘Precision Positioning Systems’ in the GPS era ? Discuss the advantages India perceives from its ambitious IRNSS programme employing just seven satellites. (200 words, 12.5 marks)
GS Paper 3
Q.2

Discuss the advantages and security implications of cloud hosting of servers vis-a-vis in-house machine-based hosting for government businesses. (200 words, 12.5 marks)
GS Paper 3
Q.3

India’s Traditional Knowledge Digital Library (TKDL), which has a database containing formatted information on more than 2 million medicinal formulations is proving a powerful weapon in the country’s fight against erroneous patents. Discuss the pros and cons of making this database publicly available under open-source licensing. (200 words, 12.5 marks)
GS Paper 3
Q.4

What are the areas of prohibitive labour that can be sustainably managed by robots ? Discuss the initiatives that can propel research in premier research institutes for substantive and gainful innovation. (200 words, 12.5 marks)

date icon 2014

GS Paper 3
Q.1

Scientific research in Indian universities is declining, because a career in science is not as attractive as are business professions, engineering or administration, and the universities are becoming consumer-oriented. Critically comment. (200 words, 12.5 marks)
GS Paper 3
Q.2

Can overuse and free availability of antibiotics without Doctor’s prescription, be contributors to the emergence of drug-resistant diseases in India? What are the available mechanisms for monitoring and control? Critically discuss the various issues involved. (200 words, 12.5 marks)
GS Paper 3
Q.3

In a globalized world, Intellectual Property Rights assume significance and are a source of litigation. Broadly distinguish between the terms—Copyrights, Patents and Trade Secrets. (200 words, 12.5 marks)

date icon 2013

GS Paper 3
Q.1

Bring out the circumstances in 2005 which forced amendment to section 3(d) in the Indian Patent Law, 1970. Discuss how it has been utilized by Supreme court in its judgment rejecting Novartis patent application for “Glivec“. Discuss briefly the pros and cons of the decision. (200 words, 10 marks)
GS Paper 3
Q.2

What do you understand by fixed dose drug combinations (FDCs)? Discuss their merits and demerits. (200 words, 10 marks)
GS Paper 3
Q.3

What do you understand by Umpire decision review in cricket? Discuss its various components. Explain how silicon tape on the edge of a bat may fool the system? (200 words, 10 marks)
GS Paper 3
Q.4

What is digital signature? What does its authentication mean? Giver various salient built-in features of a digital signature. (100 words, 5 marks)
GS Paper 3
Q.5

How does the 3D printing technology work? List out the advantages and disadvantages of the technology. (100 words, 5 marks)
GS Paper 3
Q.6

What is an FRP composite material? How are they manufactured? Discuss their applications in aviation and automobile industry. (100 words, 5 marks)

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Copyright © 2025 PWOnlyIAS
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Quick Revise Now !
AVAILABLE FOR DOWNLOAD SOON
UDAAN PRELIMS WALLAH
Comprehensive coverage with a concise format
Integration of PYQ within the booklet
Designed as per recent trends of Prelims questions
हिंदी में भी उपलब्ध
Quick Revise Now !
UDAAN PRELIMS WALLAH
Comprehensive coverage with a concise format
Integration of PYQ within the booklet
Designed as per recent trends of Prelims questions
हिंदी में भी उपलब्ध

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