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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

Q2802.Indian HistoryAsked in: UPSC CAPF · CAPF 2021, Paper IMedium

Consider the following statements : 1. The growth of socialist tendency in the national movement led to the foundation of the Congress Socialist Party in 1934 under the leadership of Acharya Narendra Deva and Jayaprakash Narayan. 2. In 1936, Jawaharlal Nehru urged the Congress to accept socialism as its goal and to bring itself closer to the peasantry and the working class. 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: C. Both 1 and 2

The Congress Socialist Party was formed in 1934 by Acharya Narendra Deva and Jayaprakash Narayan, and in 1936 Nehru asked the Congress to adopt socialism.

Q2803.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IEasy

Which one of the following statements about arteries is not correct?

  1. A.The inner lining is made of squamous endothelium.
  2. B.The middle layer is made of smooth muscle and elastic fibres.
  3. C.The outer layer is made of fibrous connective tissue with collagen fibres.
  4. D.Arteries have the thinnest walls amongst any other blood vessels.
Show answer
Correct answer: D. Arteries have the thinnest walls amongst any other blood vessels.

Arteries have the thickest walls of all blood vessels, not the thinnest, because they carry blood away from the heart under high pressure.

Q2806.General ScienceAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

Which one of the following is not an exothermic reaction?

  1. A.Dissolution of calcium oxide in water
  2. B.Decomposition of vegetable matter into compost
  3. C.Decomposition of lead nitrate
  4. D.Dilution of sodium hydroxide with water
Show answer
Correct answer: C. Decomposition of lead nitrate

Lead nitrate breaks down only when it is heated strongly, so the reaction absorbs heat and is endothermic. On heating, lead nitrate gives lead oxide, brown fumes of nitrogen dioxide and oxygen: 2Pb(NO3)2 → 2PbO + 4NO2 + O2.

Q2807.Science & TechnologyMedium

On the sidelines of which forum did Dr. Jitendra Singh make these remarks on nuclear energy and AI?

  1. A.World Economic Forum
  2. B.Raisina Dialogue
  3. C.Bloomberg Economy Forum 2026
  4. D.India Energy Week
Show answer
Correct answer: C. Bloomberg Economy Forum 2026

The correct answer is the Bloomberg Economy Forum 2026, on the sidelines of which the Union Minister spoke in an exclusive conversation about the peaceful character of India's nuclear programme and the power needs of an economy turning towards artificial intelligence.

Q2811.Summits & ConferencesMedium

Which two connectivity initiatives did Rajnath Singh name as able to link Central Asia with broader markets?

  1. A.The Suez Canal and Gwadar Port
  2. B.The International North-South Transport Corridor and Chabahar Port
  3. C.The Belt and Road Initiative and Colombo Port
  4. D.The Trans-Siberian Railway and Vladivostok Port
Show answer
Correct answer: B. The International North-South Transport Corridor and Chabahar Port

Underlining that connectivity underpins shared prosperity, the Raksha Mantri said India supports initiatives that link markets, make trade easier and open fresh avenues for development, and he named these two as able to contribute significantly to connecting Central Asia with wider markets.

Q2813.Summits & ConferencesMedium

India supported an SCO Action Plan for the Multilateral Trade and Economic Cooperation Programme for which period?

  1. A.2024-2028
  2. B.2025-2029
  3. C.2026-2030
  4. D.2027-2031
Show answer
Correct answer: C. 2026-2030

Speaking at the meeting, the Raksha Mantri reaffirmed India's support for adopting an Action Plan for the Multilateral Trade and Economic Cooperation Programme for exactly that span, and the plan went on to form part of the Joint Communique that the heads of delegation adopted.

Q2815.General ScienceAsked in: NDA · NDA-I 2018, GATMedium

Which of the following statements about a fluid at rest in a cup is/are correct? 1. Pressure is same at all the points in the fluid 2. Pressure is exerted on the walls. 3. Pressure exists everywhere in the fluid. Select the correct answer using the code given below :

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

A fluid at rest presses on the walls and has pressure at every point, but that pressure is not the same at all depths.

Q2817.General ScienceAsked in: NDA · NDA-I 2019, GATMedium

Dinitrogen (N₂) and dioxygen (O₂) are the main constituents of air but they do not react with each other to form oxides of nitrogen because

  1. A.the reaction requires initiation by a catalyst
  2. B.oxides of nitrogen are unstable
  3. C.the reaction is endothermic and requires very high temperature
  4. D.the stoichiometry of N₂ and O₂ in air is not ideal for the reaction to take place
Show answer
Correct answer: C. the reaction is endothermic and requires very high temperature

Nitrogen and oxygen combine only when a lot of energy is supplied. The nitrogen molecule is held by a very strong triple bond, so breaking it takes much energy, and the reaction N₂ + O₂ → 2NO absorbs heat.

Q2820.Indian HistoryAsked in: NDA · NDA-II 2022, GATEasy

Who among the following invented the flying shuttle?

  1. A.James Hargreaves
  2. B.John Kay
  3. C.Richard Arkwright
  4. D.Humphry Davy
Show answer
Correct answer: B. John Kay

He patented the flying shuttle in England in 1733. The flying shuttle let a single weaver send the thread across the loom by pulling a cord, so wider cloth could be woven much faster.

GK Questions for sub-exams