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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

Q2541.Indian EconomyAsked in: CDS · CDS-I 2020, GKEasy

Which one of the following is not an objective of the MGNREGA?

  1. A.Providing up to 100 days of skilled labour in a financial year
  2. B.Creation of productive assets
  3. C.Enhancing livelihood security
  4. D.Ensuring empowerment to women
Show answer
Correct answer: A. Providing up to 100 days of skilled labour in a financial year

The Act guarantees at least 100 days of unskilled manual work, not skilled labour.

Q2542.GeographyAsked in: CDS · CDS-II 2020, GKEasy

Which one among the following Union Territories of India is the smallest in geographical area?

  1. A.Chandigarh
  2. B.Puducherry
  3. C.Dadra and Nagar Haveli and Daman and Diu
  4. D.Lakshadweep
Show answer
Correct answer: D. Lakshadweep

With a land area of only about 32 square kilometres, Lakshadweep is the smallest Union Territory of India. Lakshadweep is a group of 36 coral islands in the Arabian Sea off the Kerala coast, of which only about ten are inhabited.

Q2543.Indian HistoryAsked in: CDS · CDS-I 2021, GKHard

Chronologically arrange the following treaties/conventions signed between the Marathas and the British (starting with the earliest): 1. Treaty of Salbai 2. Treaty of Purandar 3. Convention of Wadgaon 4. Treaty of Surat Select the correct answer using the code given below :

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

All four belong to the First Anglo-Maratha War: Surat (1775), Purandar (1776), Wadgaon (1779) and Salbai (1782). In 1775 the Bombay government signed the Treaty of Surat with Raghunathrao, promising to put him in power as Peshwa in return for Salsette and Bassein.

Q2544.Indian EconomyAsked in: CDS · CDS-II 2021, GKEasy

Which one of the following is the opportunity cost of a chosen activity ?

  1. A.Out of pocket cost
  2. B.Out of pocket cost plus cost incurred by the Government
  3. C.Value of all opportunities forgone
  4. D.Value of next best alternative that is given up
Show answer
Correct answer: D. Value of next best alternative that is given up

Opportunity cost is what you sacrifice by choosing one option, measured by the best option you did not take. Because resources such as time, money and land are scarce, choosing one use means giving up others.

Q2547.General ScienceAsked in: CDS · CDS-I 2023, GKEasy

Sound and light waves are

  1. A.respectively longitudinal and transverse in air
  2. B.respectively transverse and longitudinal in air
  3. C.both longitudinal in air
  4. D.both transverse in air
Show answer
Correct answer: A. respectively longitudinal and transverse in air

Sound travels as compressions and rarefactions, while light is a transverse electromagnetic wave. In a longitudinal wave the particles of the medium vibrate back and forth along the direction in which the wave moves.

Q2548.Indian HistoryAsked in: CDS · CDS-II 2023, GKHard

Arrange the following events associated with Shivaji in chronological order : 1. Attack on Afzal Khan 2. Capture of Torna 3. Attack on Shaista Khan 4. Annexation of Javli Select the correct answer using the code given below:

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

Shivaji took Torna first, then Javli, then killed Afzal Khan, and later raided Shaista Khan's camp. In 1646, still a teenager, Shivaji captured the fort of Torna from the Bijapur Sultanate, his first major conquest.

Q2549.Environment & EcologyAsked in: CDS · CDS-I 2024, GKEasy

Which one of the following biosphere reserves is spread over three States in India?

  1. A.Nilgiri
  2. B.Achanakmar-Amarkantak
  3. C.Seshachalam
  4. D.Agasthyamalai
Show answer
Correct answer: A. Nilgiri

The Nilgiri Biosphere Reserve spreads across Tamil Nadu, Kerala and Karnataka. Set up in 1986, Nilgiri was India's first biosphere reserve, and in 2000 it became the first Indian reserve on UNESCO's World Network of Biosphere Reserves.

Q2550.Indian PolityAsked in: CDS · CDS-II 2024, GKMedium

Which one of the following organizations challenged the constitutionality of Section 377 of the Indian Penal Code in the Supreme Court of India?

  1. A.Naz Foundation (India) Trust
  2. B.Bachpan Bachao Andolan
  3. C.Sambhav Foundation India
  4. D.ActionAid India
Show answer
Correct answer: A. Naz Foundation (India) Trust

This Delhi-based NGO, working on HIV/AIDS, led the long legal fight against Section 377 of the IPC. Section 377 punished "carnal intercourse against the order of nature" and was used against consensual same-sex relations.

Q2551.GeographyAsked in: CDS · CDS-I 2026, GKEasy

Which one among the following statements correctly defines the Infant Mortality Rate (IMR)?

  1. A.IMR is the average number of infants born to a woman over her lifetime.
  2. B.IMR is the average number of infants born in a year per 1000 deaths before attaining one year of age.
  3. C.IMR is the number of deaths of infants under one year old per 1000 live births in a year.
  4. D.IMR is the number of deaths of infants under one year of age per year.
Show answer
Correct answer: C. IMR is the number of deaths of infants under one year old per 1000 live births in a year.

IMR is a rate, so it compares infant deaths with live births in the same year. An infant is a child who has not yet completed one year of life.

Q2552.Indian EconomyAsked in: CDS · CDS-II 2026, GKMedium

Which one of the following best explains the "crowding-in effect" observed in India ?

  1. A.Reduction in private sector borrowing
  2. B.Public investment leading to increase in private investment
  3. C.Decline in fiscal deficit
  4. D.Increase in imports due to higher demand
Show answer
Correct answer: B. Public investment leading to increase in private investment

Crowding-in means that government spending pulls private investment in rather than pushing it out. When the government builds roads, railways, ports and power lines, it lowers the cost of doing business and raises demand for cement, steel and machinery.

Q2553.Important DaysMedium

By which date has the Union Ministry of Home Affairs set its target of freeing India from the drug menace?

  1. A.31 December 2027
  2. B.31 December 2029
  3. C.31 March 2026
  4. D.15 August 2030
Show answer
Correct answer: B. 31 December 2029

The Union Home Minister said the Ministry of Home Affairs has decided to wage a joint fight against drugs through the remaining part of 2026 and the years 2027, 2028 and 2029, so that the country is rid of the problem by the end of 2029.

Q2558.General ScienceAsked in: NDA · NDA-II 2018, GATMedium

A planet has a mass M₁ and radius R₁. The value of acceleration due to gravity on its surface is g₁. There is another planet 2, whose mass and radius both are two times that of the first planet. Which one of the following is the acceleration due to gravity on the surface of planet 2?

  1. A.g₁
  2. B.2g₁
  3. C.g₁/2
  4. D.g₁/4
Show answer
Correct answer: C. g₁/2

Surface gravity is g = GM/R², so doubling the mass doubles g while doubling the radius divides it by four, leaving g₁ × 2/4 = g₁/2.

Q2559.GeographyAsked in: NDA · NDA-I 2019, GATEasy

Which one of the following rivers was earlier known as "Vitasta" ?

  1. A.Tista
  2. B.Jhelum
  3. C.Tungabhadra
  4. D.Bharatpuzha A - EDF-F-KJU
Show answer
Correct answer: B. Jhelum

The Jhelum was called the Vitasta in the Rig Veda and in later Sanskrit texts. The rivers of the Punjab region carried Vedic names: Vitasta for the Jhelum, Asikni for the Chenab, Parushni for the Ravi, Vipasha for the Beas and Shutudri for the Satluj.

GK Questions for sub-exams