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Science & Technology GK Questions with Answers – Page 4

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Science & Technology multiple choice questions with answers and explanations, 20 per page, for SSC, Banking, UPSC, Railway and state exams.

502 questions

Science & Technology NotesOnly previous-year questions (128)GK Quiz
Q61.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2018, GS Paper IEasy

What is "Terminal High Altitude Area Defense (THAAD)", sometimes seen in the news ?

  1. A.An Israeli radar system
  2. B.India's indigenous anti-missile programme
  3. C.An American anti-missile system
  4. D.A defence collaboration between Japan and South Korea
Show answer
Correct answer: C. An American anti-missile system

THAAD is a United States ballistic missile defence system built to shoot down missiles in the last stage of their flight.

Q62.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2017, GS Paper IHard

With reference to 'Quality Council of India (QCI)', consider the following statements:

1. QCI was set up jointly by the Government of India and the Indian Industry.

2. Chairman of QCI is appointed by the Prime Minister on the recommendations of the industry to the Government.

Which of the above statements is/are correct?

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: C. Both 1 and 2

QCI is a joint body of the government and industry, and its chairperson is appointed by the Prime Minister on the industry's recommendation.

Q63.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2026, GS Paper IMedium

Which of the following statements with regard to India's Deep Ocean Mission is/are correct?

1. It was launched by the Ministry of Ports, Shipping and Waterways, Government of India.

2. Matsya-6000 has been designed to carry 3 people for deep sea exploration.

3. Samudrayaan is a project under this mission.

Select the answer using the code given below:

  1. A.1 only
  2. B.2 and 3 only
  3. C.1 and 2 only
  4. D.1, 2 and 3
Show answer
Correct answer: B. 2 and 3 only

Samudrayaan is part of the Deep Ocean Mission and its vehicle Matsya-6000 is built to take three people into the deep sea; the mission belongs to the Ministry of Earth Sciences.

Q64.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2022, GS Paper IMedium

In the context of vaccines manufactured to prevent COVID-19 pandemic, consider the following statements:

1. The Serum Institute of India produced COVID-19 vaccine named Covishield using mRNA platform.

2. Sputnik V vaccine is manufactured using vector based platform.

3. COVAXIN is an inactivated pathogen based vaccine.

Which of the statements given above are correct?

  1. A.1 and 2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: B. 2 and 3 only

Sputnik V uses adenovirus vectors and Covaxin uses killed (inactivated) virus; Covishield is not an mRNA vaccine. Covishield is the Oxford–AstraZeneca vaccine made in India by the Serum Institute.

Q65.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2026, GS Paper IMedium

Which of the following statements with regard to the National Quantum Mission (NQM) is/are correct?

1. It aims at developing intermediate-scale quantum computers with 50 - 1000 physical qubits.

2. Its implementation includes setting up of four Thematic Hubs (T-Hubs) in academic and national R&D institutes across India.

Select the answer using the code given below:

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: C. Both 1 and 2

The mission targets intermediate-scale quantum computers of 50 to 1000 physical qubits and is being carried out through four Thematic Hubs.

Q66.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2026, GS Paper IMedium

Which of the following statements with regard to GenomeIndia Project is/are correct?

1. It is a part of the Human Genome Project.

2. The project is funded by the Department of Biotechnology (DBT), Government of India.

3. Its primary aim is to build a catalogue of genetic diversity of the Indian population.

Select the answer using the code given below:

  1. A.1 only
  2. B.2 and 3 only
  3. C.1 and 2 only
  4. D.1, 2 and 3
Show answer
Correct answer: B. 2 and 3 only

GenomeIndia is India's own national programme, paid for by the Department of Biotechnology, and its goal is a reference catalogue of Indian genetic variation.

Q67.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2018, GS Paper IHard

In the Indian context, what is the implication of ratifying the 'Additional Protocol' with the International Atomic Energy Agency (IAEA) ?

  1. A.The civilian nuclear reactors come under IAEA safeguards.
  2. B.The military nuclear installations come under the inspection of IAEA.
  3. C.The country will have the privilege to buy uranium from the Nuclear Suppliers Group (NSG).
  4. D.The country automatically becomes a member of the NSG.
Show answer
Correct answer: A. The civilian nuclear reactors come under IAEA safeguards.

For India, the Additional Protocol strengthens IAEA oversight of the civilian nuclear facilities India has chosen to place under safeguards; its military programme stays outside.

Q68.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2022, GS Paper IMedium

Which one of the following statements best reflects the idea behind the "Fractional Orbital Bombardment System" often talked about in media ?

  1. A.A hypersonic missile is launched into space to counter the asteroid approaching the Earth and explode it in space.
  2. B.A spacecraft lands on another planet after making several orbital motions.
  3. C.A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.
  4. D.A spacecraft moves along a comet with the same speed and places a probe on its surface.
Show answer
Correct answer: C. A missile is put into a stable orbit around the Earth and deorbits over a target on the Earth.

In a Fractional Orbital Bombardment System, a warhead is placed in a low orbit around the Earth and then brought down out of that orbit onto its target.

Q69.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2024, GS Paper IMedium

Consider the following materials : 1. Agricultural residues 2. Corn grain 3. Wastewater treatment sludge 4. Wood mill waste Which of the above can be used as feedstock for producing Sustainable Aviation Fuel ?

  1. A.1 and 2 only
  2. B.3 and 4 only
  3. C.1, 2, 3 and 4
  4. D.1,3 and 4 only
Show answer
Correct answer: C. 1, 2, 3 and 4

All four materials can be turned into Sustainable Aviation Fuel (SAF) through one or another approved conversion route. SAF is a jet fuel made from renewable or waste sources instead of crude oil, and it can be blended with ordinary aviation turbine fuel without changing aircraft engines.

Q70.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2025, GS Paper IMedium

Consider the following statements : I. It is expected that Majorana 1 chip will enable quantum computing. II. Majorana chip has been introduced by Amazon Web Services (AWS). III. Deep learning is a subset of machine learning. Which of the statements given above are correct?

  1. A.I and II only
  2. B.II and III only
  3. C.I and III only
  4. D.I, II and III
Show answer
Correct answer: C. I and III only

Majorana 1 is a quantum computing chip, but it was unveiled by Microsoft, not AWS; and deep learning is indeed a branch of machine learning.

Q71.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2025, GS Paper IMedium

What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in media?

  1. A.These are alternatives to hydro-fluorocarbon refrigerants
  2. B.These are explosives in military weapons
  3. C.These are high-energy fuels for cruise missiles
  4. D.These are fuels for rocket propulsion
Show answer
Correct answer: B. These are explosives in military weapons

CL-20, HMX and LLM-105 are all powerful high explosives used in warheads, shells and military charges. HMX, also called octogen, is a nitramine explosive more powerful than RDX and is used in missile warheads and shaped charges.

Q72.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2017, GS Paper IEasy

Consider the following statements : 1. The Standard Mark of Bureau of Indian Standards (BIS) is mandatory for automotive tyres and tubes. 2. AGMARK is a quality Certification Mark issued by the Food and Agriculture Organisation (FAO). Which of the statements given above is/are correct ?

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: A. 1 only

Tyres and tubes must carry the BIS mark, but AGMARK is an Indian government mark, not an FAO one. The Bureau of Indian Standards, set up under the BIS Act (now the BIS Act, 2016), runs the ISI mark scheme.

Q73.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2022, GS Paper IMedium

With reference to Web 3.0, consider the following statements : 1. Web 3.0 technology enables people to control their own data. 2. In Web 3.0 world, there can be blockchain based social networks. 3. Web 3.0 is operated by users collectively rather than a corporation. Which of the statements given above are correct ?

  1. A.1 and 2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1,2 and 3
Show answer
Correct answer: D. 1,2 and 3

All three describe the idea of Web 3.0: a decentralised internet where users own their data and run the platforms together.

Q74.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2026, GS Paper IMedium

Which of the following statements with regard to genetic medicine is/are correct ? 1. Genetic medicines correct/compensate for the faulty genes responsible for disease. 2. Engineered viruses and lipid nanoparticles are used as carriers of the genetic medicine. 3. Genetic medicines alter the entire DNA sequence. Select the answer using the code given below :

  1. A.1 only
  2. B.2 and 3 only
  3. C.1 and 2 only
  4. D.1,2 and 3
Show answer
Correct answer: C. 1 and 2 only

Genetic medicines fix or make up for a faulty gene using delivery vehicles such as viruses and lipid nanoparticles, but they do not rewrite a person's whole DNA.

Q75.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2025, GS Paper IMedium

In the context of electric vehicle batteries, consider the following elements : I. Cobalt II. Graphite III. Lithium IV. Nickel How many of the above usually make up battery cathodes?

  1. A.Only one
  2. B.Only two
  3. C.Only three
  4. D.All the four
Show answer
Correct answer: C. Only three

Cobalt, lithium and nickel are cathode materials, while graphite is used for the anode. A lithium-ion battery has a positive electrode (cathode), a negative electrode (anode) and an electrolyte through which lithium ions move.

Q76.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2020, GS Paper IMedium

Consider the following statements : 1. Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent. 2. A person's genome can be edited before birth at the early embryonic stage. 3. Human induced pluripotent stem cells can be injected into the embryo of a pig. Which of the statements given above is/are correct?

  1. A.1 only
  2. B.2 and 3 only
  3. C.2 only
  4. D.1, 2 and 3
Show answer
Correct answer: D. 1, 2 and 3

With today's gene-editing and stem cell tools, all three procedures are technically possible. Changes made in germline cells, the cells that give rise to eggs or sperm, are passed on to the next generation, and tools such as CRISPR-Cas9 can make such edits.

Q77.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2025, GS Paper IEasy

Consider the following types of vehicles : I. Full battery electric vehicles II. Hydrogen fuel cell vehicles III. Fuel cell-electric hybrid vehicles How many of the above are considered as alternative powertrain vehicles?

  1. A.Only one
  2. B.Only two
  3. C.All the three
  4. D.None
Show answer
Correct answer: C. All the three

Any vehicle that does not depend only on a petrol or diesel engine for propulsion counts as an alternative powertrain vehicle, and all three types qualify.

Q78.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2020, GS Paper IMedium

"The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometres long, with lasers shining between the craft." The experiment in question refers to

  1. A.Voyager-2
  2. B.New Horizons
  3. C.LISA Pathfinder
  4. D.Evolved LISA
Show answer
Correct answer: D. Evolved LISA

eLISA is the planned space observatory of three spacecraft, linked by lasers in a giant triangle, that will detect gravitational waves.

Q79.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2017, GS Paper IMedium

Consider the following statements : 1. The Nuclear Security Summits are periodically held under the aegis of the United Nations. 2. The International Panel on Fissile Materials is an organ of International Atomic Energy Agency. Which of the statements given above is/are correct?

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: D. Neither 1 nor 2

The Nuclear Security Summits were a United States initiative outside the UN, and the International Panel on Fissile Materials is an independent expert group, not part of the IAEA.

Q80.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2020, GS Paper IEasy

Consider the following activities : 1. Spraying pesticides on a crop field 2. Inspecting the craters of active volcanoes 3. Collecting breath samples from spouting whales for DNA analysis At the present level of technology, which of the above activities can be successfully carried out by using drones ?

  1. A.1 and 2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: D. 1, 2 and 3

Drones are already used for all three jobs: spraying crops, looking into volcanic craters and catching whale breath for study.