General Science PYQ – Computers, Technology and Scientists – Part 1 (Q 1–26)

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General Science PYQ – Computers, Technology and Scientists – Part 1 (Q 1–26) – 26 questions, subject: Science. Every question has the correct answer with a one-line explanation; tap "Show Answer". Free practice for TNPSC, UPSC, SSC, Bank and RRB exams – Shanmugam IAS Academy, Coimbatore.

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1.  
Veterinary Assistant 2023
The Nobel Prize in Chemistry for the year 2009 was awarded for

Correct Answer: B ["studies of the structure and function of the ribosome"]

Explanation:

The 2009 Nobel Prize in Chemistry, shared by Venkatraman Ramakrishnan, Thomas Steitz and Ada Yonath, was for studies of the structure and function of the ribosome.

2.  
ADGS 2021
In 2019, the Nobel Prize in Chemistry was given for which development?

Correct Answer: B [Development of lithium-ion battery]

Explanation:

The 2019 Nobel Prize in Chemistry went to Goodenough, Whittingham and Yoshino for developing the lithium-ion battery.

3.  
Combined Accounts Service 2024
Nobel Prize for physiology or medicine 2020 was awarded to

Correct Answer: A [Michael Houghton, Harvey J. Alter and Charles M. Rice]

Explanation:

The 2020 Nobel Prize in Physiology or Medicine was awarded to Harvey Alter, Michael Houghton and Charles Rice for discovering the hepatitis C virus.

4.  
Research Asst. (Animal Husbandry) 2023
The Nobel prize for medicine in 2021 was awarded to

Correct Answer: A [David Julius and Ardem Patapoutian]

Explanation:

The 2021 Nobel Prize in Medicine went to David Julius and Ardem Patapoutian for discovering receptors for temperature and touch.

5.  
Road Inspector 2023
Which among the 2022 Nobel laureates of Physics demonstrated quantum teleportation?

Correct Answer: C [Anton Zeilinger]

Explanation:

Anton Zeilinger, who shared the 2022 Physics Nobel for entangled photon experiments, demonstrated quantum teleportation.

6.  
Asst. Public Prosecutor Gr. II 2025
The Nobel Prize for Physiology or Medicine for 2023 was given to

Correct Answer: D [Katalin Karikó and Drew Weissman]

Explanation:

The 2023 Nobel Prize in Medicine went to Katalin Kariko and Drew Weissman for nucleoside base modifications that enabled mRNA COVID-19 vaccines.

7.  
CTS (Non-Interview Posts) 2024
Pick out the incorrect statement

Correct Answer: D [Nobel Prize in Chemistry 2023 was shared by two scientists]

Explanation:

The 2023 Chemistry Nobel for quantum dots was shared by three scientists (Bawendi, Brus and Ekimov), not two, so statement D is incorrect.

8.  
Group 1/1A 2025
The Nobel Prize in Medicine was awarded to Victor Ambros and Gary Ruvkun for their discovery of

Correct Answer: B [Micro RNA]

Explanation:

Victor Ambros and Gary Ruvkun won the 2024 Nobel Prize in Medicine for discovering microRNA and its role in regulating gene expression.

9.  
Asst. Professor (Psychology) 2023
Insulin was discovered by

Correct Answer: C [Banting and Best]

Explanation:

Insulin was discovered in 1921 at the University of Toronto by Frederick Banting and Charles Best.

10.  
Asst. Training Officer (Textile) 2023
William Beaumont was a surgeon who was known as

Correct Answer: B [Father of Gastric Physiology]

Explanation:

William Beaumont studied digestion directly through a gunshot stomach wound of Alexis St Martin and is called the Father of Gastric Physiology.

11.  
Executive Officer Gr. I (HR&CE) 2024
Match the following.
(a) Charles Darwin – 1. Genetics
(b) Gregor Mendel – 2. Evolution
(c) Robert Koch – 3. Modern Microbiology
(d) Claude Bernard – 4. Physiology

Correct Answer: A [2 1 3 4]

Explanation:

Darwin is linked to evolution, Mendel to genetics, Robert Koch to modern microbiology and Claude Bernard to physiology, giving 2 1 3 4.

12.  
Group 2A Mains Re-Exam 2026
Choose the incorrect matches
(1) Albert Bruce Sabin – Live Polio Vaccine
(2) Max Theiler – BCG Vaccine
(3) Jonas Salk – Killed Polio Vaccine
(4) Albert Calmette – Yellow Fever Vaccine

Correct Answer: C [(2) and (4)]

Explanation:

Max Theiler developed the yellow fever vaccine and Albert Calmette (with Guerin) the BCG vaccine, so pairs (2) and (4) are incorrect.

13.  
Group 2A Mains (Revoked) 2026
Choose the correctly matched pairs:
(1) Green revolution – Swaminathan
(2) Superbug – Chandra Mohan
(3) Tissue culture – Haberlandt
(4) PCR – Michael

Correct Answer: A [(1) and (3)]

Explanation:

The Green revolution is linked to M.S. Swaminathan and plant tissue culture to Haberlandt, while the superbug was by Ananda Mohan Chakrabarty and PCR by Kary Mullis, so (1) and (3) are correct.

14.  
AD Co-operation 2022
The carbon filament is invented by

Correct Answer: C [Edison]

Explanation:

Thomas Alva Edison invented the carbon filament lamp in 1879.

15.  
Research Asst. (Animal Husbandry) 2023
This book was written by Isaac Newton during 1685 and 1686

Correct Answer: D [Principia Mathematica]

Explanation:

Newton wrote Philosophiae Naturalis Principia Mathematica in 1685-86, published in 1687, containing the laws of motion and gravitation.

16.  
Group 2 2022
Which of the following are correctly paired?
(1) Kaprekar – Astrophysicist
(2) Janaki Ammal – Biologist
(3) Debashis Mukherjee – Chemistry
(4) Meghnad Saha – Mathematician

Correct Answer: D [2 and 3 are correct]

Explanation:

Janaki Ammal was a biologist and Debashis Mukherjee a chemist, whereas Kaprekar was a mathematician and Meghnad Saha an astrophysicist, so (2) and (3) are correct.

17.  
Group 2A Mains Re-Exam 2026
Match the following scientists from Tamil Nadu with their respective fields:
(a) Sir Chandrasekhara Venkata Raman – 1. Function of ribosomes
(b) Venki Ramakrishnan – 2. Light scattering
(c) Mylswamy Annadurai – 3. Green Revolution in India
(d) M.S. Swaminathan – 4. Chandrayaan-I

Correct Answer: A [2 1 4 3]

Explanation:

C.V. Raman worked on light scattering, Venki Ramakrishnan on ribosome function, Mylswamy Annadurai on Chandrayaan-1 and M.S. Swaminathan on the Green revolution, giving 2 1 4 3.

18.  
Group 2A Mains (Revoked) 2026
Among the following Tamil Nadu scientists, who worked on the "Riemann series"?

Correct Answer: D [S.A. Ramanujan]

Explanation:

Srinivasa Ramanujan, the Tamil Nadu mathematician born at Erode, worked on infinite series including the Riemann series.

19.  
Fisheries Inspector / SI 2023
One of the prominent Indian Scientist Birbal Sahni is considered as the father of

Correct Answer: C [Paleobotany]

Explanation:

Birbal Sahni, who studied fossil plants, is regarded as the Father of Indian Paleobotany.

20.  
Asst. Public Prosecutor Gr. II 2025
Birbal Sahni Institute of paleobotany is located in

Correct Answer: C [Lucknow]

Explanation:

The Birbal Sahni Institute of Palaeosciences (Palaeobotany) is located at Lucknow, Uttar Pradesh.

21.  
Veterinary Assistant 2023
The President of the Council of Scientific and Industrial Research is

Correct Answer: C [Prime Minister]

Explanation:

The Prime Minister of India is the President of the Council of Scientific and Industrial Research (CSIR).

22.  
Junior Rehabilitation Officer 2023
CSIR (Council of Scientific and Industrial Research) is an autonomous body registered under the

Correct Answer: A [Registration of Societies Act of 1860]

Explanation:

CSIR, founded in 1942, is an autonomous body registered under the Societies Registration Act of 1860.

23.  
CEGS 2024
One of the following is an incorrect expansion

Correct Answer: B [SCERT – State Council of Educational Research and Teaching]

Explanation:

SCERT stands for State Council of Educational Research and Training, not Teaching, so that expansion is incorrect.

24.  
Combined Engineering Subordinate Service 2023
Which of the following is incorrectly paired?
1. NCPCR – National Cooperation for Protection of Child Rights
2. NIDDM – Non-Insulin Dependent Diabetes Mellitus
3. ELISA – Enzyme Linked Insulin Sorbent Assay
4. NACO – National AIDS Control Organisation

Correct Answer: C [1 and 3]

Explanation:

NCPCR is the National Commission (not Cooperation) for Protection of Child Rights and ELISA is Enzyme-Linked Immunosorbent Assay (not Insulin), so pairs 1 and 3 are incorrect.

25.  
GSASO 2020
National Institute of Ayurveda is located at

Correct Answer: D [Jaipur]

Explanation:

The National Institute of Ayurveda, under the Ministry of Ayush, is located at Jaipur, Rajasthan.

26.  
GSASO 2020
Department of Science and Technology (DST) launched several initiatives for women in science under its flagship scheme namely

Correct Answer: B [KIRAN]

Explanation:

The DST launched initiatives for women in science under its flagship scheme KIRAN (Knowledge Involvement in Research Advancement through Nurturing).

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