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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

Q321.DefenceEasy

Which ships make up the Indian Navy's First Training Squadron that departed Colombo on 29 October 2026?

  1. A.INS Vikrant, INS Vikramaditya and ICGS Samudra
  2. B.INS Tir, INS Sujata and ICGS Sarathi
  3. C.INS Tabar, INS Trikand and ICGS Vikram
  4. D.INS Shivalik, INS Kadmatt and ICGS Abhinav
Show answer
Correct answer: B. INS Tir, INS Sujata and ICGS Sarathi

These three ships form the First Training Squadron, shortened to 1TS, which carries sea trainees of the Indian Navy and sailed from Colombo on 29 October 2026 at the end of its port call.

Q322.General ScienceAsked in: CDS · CDS-II 2020, GKEasy

The radioactive isotope of hydrogen is

  1. A.protium
  2. B.deuterium
  3. C.tritium
  4. D.hydronium
Show answer
Correct answer: C. tritium

Tritium is the only radioactive isotope of hydrogen; its nucleus is unstable and decays by giving out beta particles. Hydrogen has three natural isotopes, all with one proton but different numbers of neutrons.

Q323.Indian EconomyAsked in: CDS · CDS-II 2021, GKMedium

Which of the following States/Union Territory/Region are in special focus in the National Mission on Edible Oils - Oil Palm ?

  1. A.Himachal Pradesh and Andaman and Nicobar Islands
  2. B.North-East Region and Andaman and Nicobar Islands
  3. C.North-East Region and Gujarat
  4. D.Uttar Pradesh and Gujarat
Show answer
Correct answer: B. North-East Region and Andaman and Nicobar Islands

The National Mission on Edible Oils - Oil Palm (NMEO-OP), approved in August 2021, gives special focus to these two areas because their high rainfall and humid climate suit oil palm.

Q324.Indian EconomyAsked in: CDS · CDS-I 2024, GKMedium

Consider the following statements about the Regional Comprehensive Economic Partnership (RCEP) : 1. It is a comprehensive free trade agreement between the ASEAN member States and ASEAN's free trade agreement partners. 2. India opted out of RCEP. 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

RCEP is a free trade agreement built around ASEAN and its FTA partners, and India chose to stay out of it.

Q326.Environment & EcologyAsked in: CDS · CDS-II 2026, GKEasy

Which of the following can be considered associated with mitigation of environmental problems ?

  1. A.Biomagnification
  2. B.Accelerated eutrophication
  3. C.Release of Nuclear wastes
  4. D.Categorical disposal of different wastes
Show answer
Correct answer: D. Categorical disposal of different wastes

Sorting wastes into categories and disposing of each in the proper way reduces pollution, so it helps solve environmental problems rather than cause them.

Q327.Science & TechnologyAsked in: CDS · CDS-II 2016, GKMedium

Which one of the following statements is not correct?

  1. A.BrahMos is a supersonic cruise missile made by India and Russian Federation.
  2. B.The name BrahMos came from two rivers, Brahmaputra of India and Moskva of Russia.
  3. C.Indian military scientists were capable of integrating BrahMos cruise missile with Sukhoi-30 MKI fighter.
  4. D.Defence Research and Development Organization is the manufacturer of Sukhoi-30 MKI fighter.
Show answer
Correct answer: D. Defence Research and Development Organization is the manufacturer of Sukhoi-30 MKI fighter.

The Sukhoi-30 MKI is not made by DRDO; it was designed by Russia's Sukhoi bureau and is built in India under licence by Hindustan Aeronautics Limited (HAL) at Nashik.

Q328.Indian PolityAsked in: CDS · CDS-I 2017, GKHard

Arrange the following Commissions chronologically on the basis of their date of setting : 1. The Second Administrative Reforms Commission 2. The Eleventh Finance Commission 3. Punchhi Commission 4. Sarkaria Commission Select the correct answer using the code given below.

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

The order of setting up is Sarkaria Commission (1983), Eleventh Finance Commission (1998), Second Administrative Reforms Commission (2005) and Punchhi Commission (2007).

Q330.General ScienceAsked in: CDS · CDS-II 2020, GKMedium

Antibiotic such as penicillin blocks

  1. A.cell wall formation in bacteria
  2. B.RNA synthesis in bacteria
  3. C.DNA synthesis in bacteria
  4. D.division in bacteria
Show answer
Correct answer: A. cell wall formation in bacteria

Penicillin stops bacteria from building their peptidoglycan cell wall, so the weakened cells burst and die. Penicillin binds to and blocks the transpeptidase enzymes, also called penicillin-binding proteins, that cross-link the peptidoglycan chains of the wall.

Q334.Indian EconomyAsked in: CDS · CDS-II 2025, GKHard

Consider the following statements about the Indian Institute of Entrepreneurship (IIE) : 1. The IIE was established in 1999 in Guwahati. 2. The main aim of the institute is to provide training, research and consulting activities for small and micro enterprises. 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: B. 2 only

The Indian Institute of Entrepreneurship in Guwahati was set up in 1993, not 1999, while its stated aim is indeed training, research and consultancy for small and micro enterprises.

Q335.General ScienceAsked in: CDS · CDS-II 2026, GKMedium

Which of the following statements is NOT correct ?

  1. A.Hardy-Weinberg Principle says that allele frequencies in a population is unstable
  2. B.Branching descent and natural selection are the two key concepts of Darwinian Theory of evolution
  3. C.Lamarckism is based on inheritance of acquired character
  4. D.The concept of mutation, gene flow, genetic drift, gene recombination and natural selection affect Hardy-Weinberg equilibrium
Show answer
Correct answer: A. Hardy-Weinberg Principle says that allele frequencies in a population is unstable

The Hardy-Weinberg principle states the opposite: allele frequencies in a population stay stable, that is constant, from generation to generation.

Q336.Indian PolityAsked in: CDS · CDS-I 2017, GKMedium

To be eligible to contest election under the Haryana Panchayati Raj (Amendment) Act, 2015, a candidate should 1. have a functional toilet at home 2. have payment slips of power bills 3. not be a cooperative loan defaulter 4. have studied minimum matriculation irrespective of category Select the correct answer using the code given below.

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

The 2015 amendment required a working toilet at home, no pending electricity bills and no default on cooperative loans, but its education rule was not the same for every category.

Q337.General ScienceAsked in: CDS · CDS-II 2017, GKEasy

A person throws an object on a horizontal frictionless plane surface. It is noticed that there are two forces acting on this object-(i) gravitational pull and (ii) normal reaction of the surface. According to the third law of motion, the net resultant force is zero. Which one of the following can be said for the motion of the object?

  1. A.The object will move with acceleration.
  2. B.The object will move with deceleration.
  3. C.The object will move with constant speed, but varying direction.
  4. D.The object will move with constant velocity.
Show answer
Correct answer: D. The object will move with constant velocity.

With no net force acting on it, the object keeps moving at the same speed in the same straight line.

Q339.Environment & EcologyAsked in: CDS · CDS-I 2020, GKEasy

Which one of the following is the nodal agency in India for the United Nations Environment Programme?

  1. A.The Ministry of Environment, Forest and Climate Change
  2. B.The Ministry of Science and Technology
  3. C.The Ministry of Earth Sciences
  4. D.The Ministry of Home Affairs
Show answer
Correct answer: A. The Ministry of Environment, Forest and Climate Change

This ministry plans, promotes and coordinates India's environmental policy, so it deals with UNEP on India's behalf. UNEP was set up in 1972 after the United Nations Conference on the Human Environment in Stockholm and has its headquarters in Nairobi, Kenya.

Q340.General ScienceAsked in: CDS · CDS-II 2020, GKMedium

Mature sclerenchyma cells have

  1. A.cellulose wall and are living
  2. B.lignified wall and are living
  3. C.suberized wall and are dead
  4. D.lignified wall and are dead
Show answer
Correct answer: D. lignified wall and are dead

Sclerenchyma cells lay down thick walls hardened with lignin, and once the wall is complete the protoplasm dies. Sclerenchyma is the plant tissue that gives strength and rigidity.

GK Questions for sub-exams