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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

Q2361.Environment & EcologyAsked in: UPSC CAPF · CAPF 2025, Paper IEasy

The Ramsar Convention is an intergovernmental treaty which provides the framework for national action and international cooperation for the conservation of

  1. A.fish
  2. B.wildlife
  3. C.wetland
  4. D.art and culture
Show answer
Correct answer: C. wetland

The Ramsar Convention is the treaty for the conservation and wise use of wetlands and their resources. It was signed on 2 February 1971 in the Iranian city of Ramsar on the Caspian Sea and came into force in 1975, which makes it one of the oldest global environmental agreements.

Q2362.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

Which one among the following statements is correct?

  1. A.The total mechanical energy of a system is conserved if the forces, doing work on it, are conservative.
  2. B.The total mechanical energy of a system is conserved if the forces, doing work on it, are non-conservative.
  3. C.The total mechanical energy of a system remains constant.
  4. D.Every force encountered in mechanics does have an associated well-defined potential energy.
Show answer
Correct answer: A. The total mechanical energy of a system is conserved if the forces, doing work on it, are conservative.

When only conservative forces do work on a system, the sum of its kinetic and potential energy stays the same; this is the principle of conservation of mechanical energy.

Q2363.Indian PolityAsked in: UPSC CAPF · CAPF 2018, Paper IMedium

Which one of the following statements with regard to Panchayats is not correct?

  1. A.Members of Panchayats are elected directly by the Gram Sabha.
  2. B.The elections to Panchayats are conducted by the State Election Commission.
  3. C.The Central Government may by law authorize a Panchayat to levy taxes.
  4. D.Every Panchayat continues for five years from the date of convening of its first meeting.
Show answer
Correct answer: C. The Central Government may by law authorize a Panchayat to levy taxes.

Under Article 243H it is the State Legislature, not the Centre, that may by law let a Panchayat levy, collect and keep taxes, duties, tolls and fees.

Q2365.Awards & HonoursAsked in: UPSC CAPF · CAPF 2024, Paper IMedium

Which of the following statements about the Nobel Peace Prize for 2023 is/are correct?

1. The 2023 Nobel Peace Prize was awarded to Narges Mohammadi

2. Narges Mohammadi was awarded the prize for her struggle to bring peace in Afghanistan and Iran

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: A. 1 only

Narges Mohammadi won the 2023 Nobel Peace Prize, but it was given for her fight against the oppression of women in Iran and for human rights and freedom for all, not for bringing peace to Afghanistan.

Q2366.GeographyAsked in: UPSC CAPF · CAPF 2025, Paper IEasy

The seasonal variations in the amount of solar energy that any place on the Earth receives are influenced by

  1. A.the speed of rotation of the Earth
  2. B.pollution
  3. C.cloudiness
  4. D.the inclination of the Earth about its axis
Show answer
Correct answer: D. the inclination of the Earth about its axis

Because the axis is tilted and keeps pointing the same way as the Earth goes round the Sun, each place gets more sunlight in one half of the year and less in the other.

Q2367.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

For a particle in uniform circular motion (radius R and angular velocity ω), the magnitude and direction of acceleration, respectively are

  1. A.ωR, along the radius outward
  2. B.ωR, towards the centre of the circle
  3. C.ω²R, towards the centre of the circle
  4. D.ω²R, along the linear velocity
Show answer
Correct answer: C. ω²R, towards the centre of the circle

In uniform circular motion the speed stays the same but the direction keeps turning, and that change needs an acceleration pointing to the centre.

Q2368.Environment & EcologyAsked in: UPSC CAPF · CAPF 2018, Paper IMedium

The National Green Tribunal, set up to deal with the expeditious disposal of cases relating to environmental protection, was set up under the

  1. A.12th Five-Year Plan
  2. B.11th Five-Year Plan
  3. C.10th Five-Year Plan
  4. D.9th Five-Year Plan
Show answer
Correct answer: B. 11th Five-Year Plan

The National Green Tribunal was established in October 2010, and the 11th Plan ran from 2007 to 2012. The tribunal was created by the National Green Tribunal Act, 2010, which drew on Article 21's right to a healthy environment.

Q2369.Awards & HonoursAsked in: UPSC CAPF · CAPF 2021, Paper IHard

Which one of the following films has won the Best Film Award in Environment Conservation category at the 67th National Film Awards, 2021?

  1. A.Jonaki Porua
  2. B.Wild Karnataka
  3. C.Water Burial
  4. D.Ronuwa—Who Never Surrender
Show answer
Correct answer: C. Water Burial

This film in the Monpa language won the award for the Best Film on Environment Conservation/Preservation at the 67th National Film Awards, announced in March 2021 for films of 2019.

Q2370.Environment & EcologyAsked in: UPSC CAPF · CAPF 2024, Paper IHard

Which of the following statements about CBAM (Carbon Border Adjustment Mechanisms) is/are correct?

1. These are an emerging set of trade policy tools to allow movement of carbon-intensive economic activity from a jurisdiction having less stringent climate policy to a jurisdiction having stringent climate policy

2. These are meant to increase the environmental effectiveness of climate policies

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: B. 2 only

A carbon border adjustment exists to stop carbon-intensive activity from moving out of a strict jurisdiction, not to help it move, and its aim is to make climate policy work better.

Q2371.Computer AwarenessAsked in: UPSC CAPF · CAPF 2025, Paper IEasy

1 gigabyte in binary system is equivalent to

  1. A.1000 kilobytes
  2. B.1024 megabytes
  3. C.1200 megabytes
  4. D.10000 kilobytes
Show answer
Correct answer: B. 1024 megabytes

In the binary system every step up the ladder of memory units is a factor of 2 raised to 10, that is 1024, so one gigabyte holds 1024 megabytes.

Q2372.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IEasy

A uniform current-carrying narrow solenoid produces

  1. A.uniform magnetic field inside the solenoid
  2. B.uniform magnetic field outside the solenoid
  3. C.magnetic field with straight field lines in all the regions
  4. D.magnetic field with oscillating nature
Show answer
Correct answer: A. uniform magnetic field inside the solenoid

Inside a long, narrow solenoid the field lines run straight and parallel and are evenly spaced, which is the picture of a uniform field.

Q2373.Indian PolityHard

In State of Uttaranchal v. Balwant Singh Chaufal (2010), the Supreme Court mainly

  1. A.abolished public interest litigation in service matters
  2. B.compiled guidelines to prevent the misuse of public interest litigation
  3. C.held that only the Attorney General may file a PIL
  4. D.transferred all PILs to the High Courts
Show answer
Correct answer: B. compiled guidelines to prevent the misuse of public interest litigation

In this 2010 judgment the Supreme Court traced the history of PIL and, worried that the device was being used for publicity, private profit and political rivalry, compiled a set of directions for the courts.

Q2374.Indian PolityHard

Which two judges are most often described as the pioneers of public interest litigation in India?

  1. A.Justice H. R. Khanna and Justice M. Hidayatullah
  2. B.Justice P. N. Bhagwati and Justice V. R. Krishna Iyer
  3. C.Justice K. Subba Rao and Justice A. N. Ray
  4. D.Justice Y. V. Chandrachud and Justice P. B. Gajendragadkar
Show answer
Correct answer: B. Justice P. N. Bhagwati and Justice V. R. Krishna Iyer

Both sat on the Supreme Court in the late nineteen seventies and early eighties, both wrote the judgments that relaxed locus standi and accepted letters as petitions, and both pushed free legal aid and prison reform through the court.

Q2375.Indian PolityMedium

In which case did the Supreme Court hold that the right to a pollution-free environment is part of the right to life under Article 21?

  1. A.Olga Tellis v. Bombay Municipal Corporation
  2. B.Subhash Kumar v. State of Bihar
  3. C.Unni Krishnan v. State of Andhra Pradesh
  4. D.D. K. Basu v. State of West Bengal
Show answer
Correct answer: B. Subhash Kumar v. State of Bihar

The Court also warned in the same judgment that a PIL must not be used to settle a personal score, and it dismissed the petition on that ground.

Q2376.Indian PolityMedium

Epistolary jurisdiction, as developed by the Supreme Court of India, means that

  1. A.a letter or postcard addressed to the court can be treated as a writ petition
  2. B.only a registered advocate may file a writ petition
  3. C.a petition must be filed in English
  4. D.an appeal lies directly from a tribunal to the Supreme Court
Show answer
Correct answer: A. a letter or postcard addressed to the court can be treated as a writ petition

Epistolary jurisdiction is the practice by which the Supreme Court, and later the High Courts, treated a simple letter or postcard describing a violation of rights as a formal writ petition, dispensing with the usual requirements of form, court fee and a lawyer.

Q2377.Indian PolityMedium

Which Article empowers the Supreme Court to pass any decree or order necessary for doing complete justice in a matter before it?

  1. A.Article 32
  2. B.Article 136
  3. C.Article 142
  4. D.Article 226
Show answer
Correct answer: C. Article 142

It says that the Supreme Court in the exercise of its jurisdiction may pass such decree or make such order as is necessary for doing complete justice in any cause or matter pending before it, and that such a decree is enforceable throughout India.

Q2380.Indian PolityMedium

Article 39A was inserted into the Constitution by which amendment?

  1. A.The 24th Amendment Act, 1971
  2. B.The 42nd Amendment Act, 1976
  3. C.The 44th Amendment Act, 1978
  4. D.The 86th Amendment Act, 2002
Show answer
Correct answer: B. The 42nd Amendment Act, 1976

Often called the Mini Constitution because of the number of provisions it touched, it added several Directive Principles, among them Article 39A on equal justice and free legal aid, Article 43A on worker participation in management and Article 48A on the protection of the environment, forests and wildlife.

GK Questions for sub-exams