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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

Q5041.Indian HistoryAsked in: UPSC Civil Services · CSE Prelims 2017, GS Paper IEasy

Who among the following was/were associated with the introduction of Ryotwari Settlement in India during the British rule ?

1. Lord Cornwallis

2. Alexander Read

3. Thomas Munro

Select the correct answer using the code given below:

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

Alexander Read and Thomas Munro introduced the Ryotwari Settlement; Lord Cornwallis is linked to the Permanent Settlement. The Ryotwari system was first tried by Captain Alexander Read in the Baramahal district in 1792, with Thomas Munro working under him.

Q5042.Indian PolityAsked in: UPSC Civil Services · CSE Prelims 2018, GS Paper IMedium

Consider the following statements :

1. Aadhaar card can be used as a proof of citizenship or domicile.

2. Once issued, Aadhaar number cannot be deactivated or omitted by the Issuing Authority.

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

Both statements are wrong: Aadhaar proves identity, not citizenship, and it can be deactivated.

Q5044.Indian EconomyAsked in: UPSC Civil Services · CSE Prelims 2021, GS Paper IMedium

With reference to 'WaterCredit', consider the following statements :

1. It puts microfinance tools to work in the water and sanitation sector.

2. It is a global initiative launched under the aegis of the World Health Organization and the World Bank.

3. It aims to enable the poor people to meet their water needs without depending on subsidies.

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: C. 1 and 3 only

Statements 1 and 3 are correct; WaterCredit is not a WHO or World Bank initiative. WaterCredit was created by Water.org, the non-profit co-founded by Gary White and Matt Damon.

Q5045.Indian PolityAsked in: UPSC Civil Services · CSE Prelims 2022, GS Paper IMedium

Consider the following statements :

1. Pursuant to the report of H.N. Sanyal Committee, the Contempt of Courts Act, 1971 was passed.

2. The Constitution of India empowers the Supreme Court and the High Courts to punish for contempt of themselves.

3. The Constitution of India defines Civil Contempt and Criminal Contempt.

4. In India, the Parliament is vested with the powers to make laws on Contempt of Court.

Which of the statements given above is/are correct ?

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

Statements 1, 2 and 4 are correct; only statement 3 is wrong. The Contempt of Courts Act, 1971 was passed on the recommendations of the committee headed by H.N.

Q5047.Indian HistoryAsked in: UPSC Civil Services · CSE Prelims 2025, GS Paper IMedium

With reference to ancient India (600-322 BC), consider the following pairs :

Territorial region : River flowing in the region

I. Asmaka : Godavari

II. Kamboja : Vipas

III. Avanti : Mahanadi

IV. Kosala : Sarayu

How many of the pairs given above are correctly matched?

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

Only pairs I (Asmaka: Godavari) and IV (Kosala: Sarayu) are correct. Asmaka was the only mahajanapada in the south, lying on the banks of the Godavari, with Potana (Paudanya) as its capital.

Q5048.Indian HistoryAsked in: UPSC Civil Services · CSE Prelims 2026, GS Paper IMedium

Which of the following pairs of the king and his dynasty in early historical Tamilakam is/are not correctly matched?

1. Senguttuvan : Chera

2. Udiyanjeral : Chola

3. Nedunjeliyan : Pandya

Select the answer using the code given below :

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

Udiyanjeral was a Chera king, not a Chola, so pair 2 is the only wrong one. Sangam poems name three crowned dynasties of Tamilakam: the Cheras on the western (Kerala) coast, the Cholas in the Kaveri delta and the Pandyas around Madurai.

Q5049.Science & TechnologyHard

The main detector planned for the India-based Neutrino Observatory in Theni district is

  1. A.a water Cherenkov tank
  2. B.a 50,000-tonne magnetised Iron CALorimeter
  3. C.a liquid argon time projection chamber
  4. D.a superconducting tokamak
Show answer
Correct answer: B. a 50,000-tonne magnetised Iron CALorimeter

Placed in a cavern under about 1,300 metres of rock at Pottipuram in the Bodi West Hills, it is designed to catch atmospheric neutrinos and measure how they change from one flavour to another, the phenomenon of neutrino oscillation; the magnetic field lets it tell a neutrino from an antineutrino.

Q5050.Science & TechnologyMedium

LIGO-India, the third detector of the LIGO network, is being set up at which place?

  1. A.Aundha, Hingoli district, Maharashtra
  2. B.Hanle, Ladakh
  3. C.Pottipuram, Theni district, Tamil Nadu
  4. D.Khodad, Pune district, Maharashtra
Show answer
Correct answer: A. Aundha, Hingoli district, Maharashtra

The site was chosen for its flat, seismically quiet ground, the Union Cabinet approved the project in principle in 2016 and in full in April 2023, and it is being executed by the Department of Atomic Energy and the Department of Science and Technology with IPR, RRCAT Indore and IUCAA…

Q5051.Science & TechnologyEasy

Gravitational waves, first detected by LIGO in September 2015, had been predicted a century earlier by whom?

  1. A.Isaac Newton
  2. B.Albert Einstein
  3. C.Niels Bohr
  4. D.Stephen Hawking
Show answer
Correct answer: B. Albert Einstein

Gravitational waves are ripples in space-time thrown out by violent events such as the merger of two black holes, and they follow from the general theory of relativity that Einstein published in 1915, with the prediction of the waves set out in 1916.

Q5052.Science & TechnologyAsked in: Rajasthan · 28 June 2022Medium

During a nuclear fusion reaction -

  1. A.A light nucleus breaks up due to bombardment of thermal neutrons.
  2. B.A heavy nucleus breaks up due to bombardment of thermal neutrons.
  3. C.Two light nuclei combine to give a heavier nucleus and possibly other products.
  4. D.A heavy nucleus breaks into two fragments by itself.
Show answer
Correct answer: C. Two light nuclei combine to give a heavier nucleus and possibly other products.

Fusion is the joining of two light nuclei into a heavier one, with a neutron or other products released and a large amount of energy appearing because the mass of the product is slightly less than the mass of the reactants; in ITER the reaction fuses deuterium and tritium into…

Q5053.Science & TechnologyAsked in: SSC MTS · 21 August 2019, Shift 3Easy

Hydrogen bomb is based on which Nuclear process?

  1. A.Thermal fusion
  2. B.Heavy Water Ability
  3. C.Thermal fission
  4. D.Rapid breeder reaction
Show answer
Correct answer: A. Thermal fusion

A hydrogen bomb, also called a thermonuclear bomb, uses a fission explosion only as a trigger; the main energy comes from the fusion of the heavy hydrogen isotopes deuterium and tritium into helium at temperatures of millions of degrees, which is why the process is described as thermonuclear or thermal…

Q5054.Science & TechnologyMedium

India contribution to ITER is delivered by ITER-India, a unit of which institution?

  1. A.Institute for Plasma Research, Gandhinagar
  2. B.Bhabha Atomic Research Centre, Mumbai
  3. C.Indian Institute of Astrophysics, Bengaluru
  4. D.Physical Research Laboratory, Ahmedabad
Show answer
Correct answer: A. Institute for Plasma Research, Gandhinagar

This institute of the Department of Atomic Energy is the national centre for plasma and fusion research, it houses the domestic agency ITER-India that supplies India share of the machine, and it operates India own tokamaks Aditya and SST-1, the Steady State Superconducting Tokamak.

Q5056.Science & TechnologyMedium

The discovery of the Higgs boson was announced in 2012 by which pair of experiments at CERN?

  1. A.ALICE and LHCb
  2. B.ATLAS and CMS
  3. C.Super-Kamiokande and SNO
  4. D.ICAL and RPC
Show answer
Correct answer: B. ATLAS and CMS

These are the two general purpose detectors on the LHC ring, and in July 2012 both independently reported a new particle of about 125 giga-electronvolts that matched the Higgs boson, the particle linked to the field that gives mass to other particles; the Nobel Prize in Physics of 2013 went…

Q5058.Science & TechnologyEasy

The Large Hadron Collider at CERN is a ring of approximately what circumference?

  1. A.7 km
  2. B.17 km
  3. C.27 km
  4. D.47 km
Show answer
Correct answer: C. 27 km

The Large Hadron Collider occupies a circular tunnel about 27 kilometres around, lying roughly 100 metres below the ground on the Swiss-French border near Geneva, and it is the largest and most powerful particle accelerator ever built; the tunnel was originally dug for an earlier CERN machine, the Large Electron-Positron…

Q5060.Science & TechnologyHard

The Genome India Project, launched in January 2020 to build a reference database of Indian genomes, is coordinated by

  1. A.The Indian Council of Medical Research
  2. B.The Department of Biotechnology
  3. C.The Indian Space Research Organisation
  4. D.The Central Drug Standard Control Organisation
Show answer
Correct answer: B. The Department of Biotechnology

The Genome India Project was launched in January 2020 by the Department of Biotechnology, which works under the Ministry of Science and Technology, and brings together about twenty academic institutions to sequence Indian genomes and build a reference set that reflects the country's genetic diversity.

GK Questions for sub-exams