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Defence GK Questions 2026

Static GK carries most of the General Knowledge marks in the defence exams, and science carries the largest share of it. In NDA & NA, Physics, Chemistry and General Science are about half of the 400 marks of Part B, and History, the freedom movement and Geography are about 20% each, as per the notice. In the CDS (II) 2026 General Knowledge paper, GK24 counted about 37 science questions, about 20 each on Polity and History, about 15 on Geography and environment and about 10 on the Economy; this count is guidance, not an official break-up. The Army's Agniveer CEE gives 15 of its 50 General Duty questions to General Knowledge and 15 to General Science, which covers cells, the human body, plants and animals and common epidemics. Its GK list names history, culture and geography of India and its neighbours, the Constitution, inventions and discoveries, books and authors, and the Indian Armed Forces. This page holds GK24's topic-wise GK notes and GK questions tagged for NDA, CDS and Agniveer, in English and Hindi: General Science, Indian History, Art and Culture, Indian Polity, Geography, Indian Economy and Static GK. Read one topic at a sitting, then solve its questions and the previous-year questions of your exam to see what stayed with you.

Defence GK Questions with Answers

Q5301.General ScienceAsked in: NDA · NDA-II 2026, GATMedium

A tennis ball of mass 350 g is thrown vertically upwards at a speed of 4 m/s. If M is the maximum gravitational potential energy of the ball and H is the maximum height it reaches, then which one of the following is correct? (Take g = 10 m/s²)

  1. A.M = 5·6 J, H = 1·6 m
  2. B.M = 2·8 J, H = 1·6 m
  3. C.M = 5·6 J, H = 0·8 m
  4. D.M = 2·8 J, H = 0·8 m
Show answer
Correct answer: D. M = 2·8 J, H = 0·8 m

At the top of its flight all the kinetic energy of the ball has turned into gravitational potential energy. The mass is 350 g, that is 0·35 kg.

Q5302.DefenceMedium

What is the theme of IBSAMAR IX?

  1. A.Stronger Together Towards a Shared Future in the Maritime Domain
  2. B.Secure Seas, Shared Prosperity
  3. C.One Ocean, One Future
  4. D.Partners for a Safer Indian Ocean
Show answer
Correct answer: A. Stronger Together Towards a Shared Future in the Maritime Domain

This is the declared theme of the ninth edition of the India-Brazil-South Africa Maritime Exercise, which aims at collective maritime security and at preparing the three navies to deal with challenges at sea.

Q5305.NationalMedium

Which technology was named as a way the Keylong centre will try to improve healthcare in remote areas?

  1. A.Drone-enabled medicine delivery
  2. B.Underground pneumatic tube transport
  3. C.Satellite-launched weather balloons
  4. D.Hyperloop ambulance corridors
Show answer
Correct answer: A. Drone-enabled medicine delivery

These are practical choices for the Himalayan belt, where settlements can be cut off for months and a short distance on a map can take hours to travel.

Q5306.NationalMedium

Which two bodies are the main partners in setting up the high-altitude research centre at Keylong?

  1. A.DRDO and the Indian Air Force
  2. B.ICMR and the Armed Forces Medical Services
  3. C.CSIR and the Indian Army
  4. D.ICAR and the Border Roads Organisation
Show answer
Correct answer: B. ICMR and the Armed Forces Medical Services

AIIMS Bilaspur is the third institution involved, and its role is to study the health impact of high-altitude conditions on patients who come to the region.

Q5308.Indian PolityAsked in: UPSC CAPF · CAPF 2017, Paper IEasy

The Ninth Schedule was added to the Constitution of India by the

  1. A.Fourteenth Amendment
  2. B.First Amendment
  3. C.Ninety-Third Amendment
  4. D.Ninety-Ninth Amendment
Show answer
Correct answer: B. First Amendment

The Constitution (First Amendment) Act, 1951 inserted the Ninth Schedule along with Article 31B. Courts had begun striking down zamindari abolition and other land reform laws for violating the right to property.

Q5309.General ScienceAsked in: UPSC CAPF · CAPF 2020, Paper IEasy

Which one of the following is the major function of platelets ?

  1. A.Clotting of blood
  2. B.O2 transport
  3. C.Immunity
  4. D.Phagocytosis
Show answer
Correct answer: A. Clotting of blood

Platelets, or thrombocytes, gather at a cut and start the process that forms a clot and stops bleeding. Platelets are tiny cell fragments without a nucleus, broken off from large cells called megakaryocytes in the bone marrow.

Q5310.Indian HistoryAsked in: UPSC CAPF · CAPF 2023, Paper IMedium

Which one of the following statements is correct?

  1. A.Brahmi, used for writing many Ashokan inscriptions, shows local variations.
  2. B.The system of hieroglyphic writing was developed in ancient Mesopotamia.
  3. C.The system of cuneiform writing developed around 3rd millennium BCE in Egypt.
  4. D.An ancient script, Kharoshthi was widely used in the southern part of India.
Show answer
Correct answer: A. Brahmi, used for writing many Ashokan inscriptions, shows local variations.

Most Ashokan inscriptions are in Brahmi, and the script already shows regional differences in the shapes of its letters. Ashoka's edicts were written mostly in Prakrit, in the Brahmi script, which James Prinsep deciphered in 1837-38.

Q5311.General ScienceAsked in: UPSC CAPF · CAPF 2024, Paper IMedium

Which among the following are the main ingredients for manufacturing of glass?

  1. A.Silica, sodium carbonate, borax, alumina and cullets
  2. B.Iron oxide, lead, sodium bicarbonate, alumina and cullets
  3. C.Magnesium carbonate, alumina, silica and cullets
  4. D.Iron oxide, sodium, alumina, silica and cullets
Show answer
Correct answer: A. Silica, sodium carbonate, borax, alumina and cullets

Glass is made by melting silica sand with fluxes and stabilisers, and this option lists the standard batch. Silica, from pure sand, forms the glassy network.

Q5314.Indian EconomyAsked in: UPSC CAPF · CAPF 2019, Paper IMedium

Which one of the following is NOT correct ?

  1. A.The Average Revenue and Marginal Revenue curves of a perfectly competitive firm are perfectly elastic
  2. B.The Marginal Revenue curve of the monopoly firm is above its Average Revenue curve
  3. C.In the long-run, a competitive firm earns only normal profits
  4. D.In equilibrium, the Marginal Cost Curve of the monopoly firm may be rising, falling or constant
Show answer
Correct answer: B. The Marginal Revenue curve of the monopoly firm is above its Average Revenue curve

A monopoly's marginal revenue curve lies below its average revenue curve, not above it. A monopolist faces the whole market's downward-sloping demand curve, which is its average revenue curve.

Q5315.General ScienceAsked in: UPSC CAPF · CAPF 2020, Paper IMedium

In human beings, certain chemicals which cross the synapse between nerve cells are released from

  1. A.cell body of nerve cell
  2. B.nucleus of nerve cell
  3. C.nerve endings of nerve cell
  4. D.axon of nerve cell
Show answer
Correct answer: C. nerve endings of nerve cell

Chemical messengers called neurotransmitters are released from the nerve endings, the tips of the axon, into the synapse. A nerve impulse travels from the dendrites through the cell body and along the axon as an electrical signal.

Q5318.Indian EconomyAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

The comparative advantage theory (CAT) is a trade theory that describes the basis of two nations engaging in trade. Which one among the following statements regarding the theory is not correct?

  1. A.David Ricardo was the author of the CAT.
  2. B.The CAT is explained in the book titled On the Principles of Political Economy and Taxation that was first published in 1817.
  3. C.According to the CAT, the nation which does not have absolute advantage in any goods cannot benefit from trade.
  4. D.The two nations that engage in trade can gain from specializing in the commodity in which they have a comparative advantage.
Show answer
Correct answer: C. According to the CAT, the nation which does not have absolute advantage in any goods cannot benefit from trade.

The whole point of comparative advantage is that a country gains from trade even when it has no absolute advantage in any good.

Q5319.Indian EconomyAsked in: UPSC CAPF · CAPF 2026, Paper IEasy

What does the term 'Orange Economy' refer to?

  1. A.Economic activities linked to creativity, culture and intellectual property that generate income and jobs
  2. B.Economic activities linked to desert ecosystems and their unique socio-environmental characteristics
  3. C.Economic activities linked to the aging population, including health care, leisure, and services for older adults
  4. D.Informal, unaccounted, or illegal economic activities that evade taxation and regulation
Show answer
Correct answer: A. Economic activities linked to creativity, culture and intellectual property that generate income and jobs

The orange economy is another name for the creative economy. The term was popularised by a 2013 Inter-American Development Bank book, and orange was chosen because it is often linked with culture and creativity.

GK Questions for sub-exams