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CDS GK Questions 2026

Static GK carries most of the 100 marks of the CDS General Knowledge paper. Of the 120 questions in the CDS (II) 2026 paper, about 20 were on Indian Polity, about 20 on the History of India, about 15 on Geography and the environment, about 10 on the Indian Economy and about 37 on Physics, Chemistry and Biology, which makes CDS the most science-heavy General Knowledge paper among the major recruitment exams. Polity questions test writs, the NHRC, electoral systems, disqualification of legislators, GST and delimitation. History runs from the Upanishads and the Shunga dynasty to Vijayanagara, temple architecture, the Sylhet referendum and the SNDP Yogam. Geography asks about the atmosphere, earthquakes and tsunamis, Ramsar sites, mangroves and World Heritage sites. Science stays at school level but expects reasoning: a lens problem, a magnetic field direction, molarity versus molality, what cooking soda is, how enzymes act. This page holds GK24's topic-wise GK notes for CDS, written as short facts and tables so that a topic can be revised in one sitting. Read a topic, then solve its previous-year questions and quiz on this site to check what stayed with you.

CDS GK Questions with Answers

Q3362.General ScienceAsked in: UPSC CAPF · CAPF 2023, Paper IEasy

The lymph is mainly formed from the plasma of blood and it surrounds the cells. The main difference between blood and lymph is :

  1. A.Lymph does not contain red blood cells.
  2. B.Lymph does not contain white blood cells.
  3. C.Lymph contains both red blood cells and white blood cells.
  4. D.Lymph does not contain any cells.
Show answer
Correct answer: A. Lymph does not contain red blood cells.

Lymph is plasma that has leaked out of the capillaries, and red blood cells are too large to pass through the capillary walls.

Q3363.Indian PolityAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

Which of the following statements about human rights is/are correct? 1. The first generation rights were traditional civil and political rights. 2. The second generation rights are solidarity rights. 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

First generation rights are civil and political rights, but solidarity rights are the third generation, not the second. The idea of three generations of human rights was put forward by the Czech-French jurist Karel Vasak in 1977, linked to the French slogan of liberty, equality and fraternity.

Q3364.Indian EconomyAsked in: UPSC CAPF · CAPF 2020, Paper IMedium

Which one of the following educational development indicators is currently used by United Nations Development Programme (UNDP) to construct Human Development Index?

  1. A.Level of Literacy
  2. B.Gross Enrolment Ratio
  3. C.Mean Years of Schooling
  4. D.Dropout rate
Show answer
Correct answer: C. Mean Years of Schooling

Since 2010 the UNDP measures the education dimension of the HDI with mean years of schooling and expected years of schooling.

Q3365.Indian EconomyAsked in: UPSC CAPF · CAPF 2021, Paper IMedium

For anything to be recognized as money, it needs to have which of the following characteristics? 1. Act as an intermediate in the exchange process 2. Standard unit for quoting prices 3. Must be easily divisible 4. Have higher value in alternative uses Select the correct answer using the code given below.

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

Money must work as a medium of exchange, serve as a unit of account and be easy to divide; a higher value in other uses is not required.

Q3368.DefenceMedium

Which facility, set up with Indian assistance, did the Indian delegation review at Mongolia's National Defence University?

  1. A.A satellite tracking station
  2. B.A Cyber Security Training Centre
  3. C.A naval dockyard
  4. D.A missile testing range
Show answer
Correct answer: B. A Cyber Security Training Centre

During the visit tied to the Joint Working Group meeting, the Indian delegation went to Mongolia's National Defence University and examined how the Cyber Security Training Centre, established there with Indian assistance, is functioning.

Q3369.DefenceMedium

Which joint military exercise of India and Mongolia was welcomed at the 14th Joint Working Group meeting?

  1. A.Exercise Nomadic Elephant
  2. B.Exercise Mitra Shakti
  3. C.Exercise Surya Kiran
  4. D.Exercise Garuda Shakti
Show answer
Correct answer: A. Exercise Nomadic Elephant

At the fourteenth Joint Working Group meeting in Ulaanbaatar, both delegations appreciated the successful conclusion of this exercise and treated it as evidence of how firmly the two armies have built their cooperation.

Q3371.General ScienceAsked in: CDS · CDS-I 2020, GKEasy

If x is the temperature of a system in Kelvin and y is the temperature of the system in °C, then the correct relation between them is

  1. A.x = 273 - y
  2. B.x = 273 + y
  3. C.x = 173 + y
  4. D.x = 173 - y
Show answer
Correct answer: B. x = 273 + y

A temperature in kelvin is the Celsius temperature plus 273 (more exactly 273.15). The Kelvin and Celsius scales have degrees of the same size, so a change of 1 °C equals a change of 1 K; only their zero points differ.

Q3373.General ScienceAsked in: CDS · CDS-II 2021, GKMedium

Fertilizers are used to obtain higher yields of crops. However, all nutrients are usually not available in fertilizers. Which one of the following nutrients is usually not available in fertilizers ?

  1. A.Iron
  2. B.Potassium
  3. C.Nitrogen
  4. D.Phosphorus
Show answer
Correct answer: A. Iron

Common fertilisers supply nitrogen, phosphorus and potassium (NPK); iron is a micronutrient that is usually not part of them. Plants need nitrogen, phosphorus and potassium in large amounts, so these are called primary macronutrients, and fertilisers such as urea, DAP, MOP and NPK mixtures are made to supply them.

Q3374.General ScienceAsked in: CDS · CDS-I 2022, GKEasy

Which one of the following living organisms gives litmus ?

  1. A.Protozoa
  2. B.Virus
  3. C.Lichen
  4. D.Saccharomyces
Show answer
Correct answer: C. Lichen

Litmus is a natural dye extracted from certain lichens, especially species of Roccella. A lichen is a partnership between a fungus and an alga (or a cyanobacterium): the alga makes food by photosynthesis, while the fungus gives shelter and absorbs water and minerals.

Q3376.Indian EconomyAsked in: CDS · CDS-I 2023, GKMedium

Which of the following strategies is/are adopted for implementing the POSHAN Abhiyaan? 1. Inter-sectoral convergence for better service delivery 2. Use of technology (ICT) for real-time growth monitoring of women and children Select the correct 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: C. Both 1 and 2

Convergence of different schemes and the use of ICT for real-time monitoring are both core strategies of POSHAN Abhiyaan. POSHAN Abhiyaan (Prime Minister's Overarching Scheme for Holistic Nourishment), also called the National Nutrition Mission, was launched on 8 March 2018 at Jhunjhunu in Rajasthan.

Q3377.GeographyAsked in: CDS · CDS-II 2023, GKEasy

How can resources be classified on the basis of their origin ?

  1. A.Biotic and abiotic
  2. B.Renewable and non-renewable
  3. C.Individual and community
  4. D.Potential and reserve
Show answer
Correct answer: A. Biotic and abiotic

By origin, resources are either biotic, which come from living things, or abiotic, which come from non-living things. Biotic resources are obtained from the biosphere and have life: plants, animals, fish, livestock and human beings.

Q3378.Environment & EcologyAsked in: CDS · CDS-II 2024, GKEasy

Ozone hole is a region over :

  1. A.the Antarctic caused mainly by CFC gases.
  2. B.the Antarctic caused mainly by carbon dioxide gas.
  3. C.the Arctic caused mainly by CFC gases.
  4. D.the Arctic caused mainly by carbon dioxide gas.
Show answer
Correct answer: A. the Antarctic caused mainly by CFC gases.

The ozone hole is a sharp seasonal thinning of the stratospheric ozone layer over Antarctica, caused mainly by chlorine from chlorofluorocarbons.

Q3379.General ScienceAsked in: CDS · CDS-I 2025, GKEasy

The rule that determines the direction of a magnetic field produced around a straight conductor carrying current is :

  1. A.Right-hand thumb rule
  2. B.Fleming's left-hand rule
  3. C.Fleming's right-hand rule
  4. D.Hund's rule
Show answer
Correct answer: A. Right-hand thumb rule

If you hold a current-carrying straight wire in your right hand with the thumb pointing along the current, your curled fingers show the direction of the magnetic field lines around it.

Q3380.General ScienceAsked in: CDS · CDS-II 2025, GKEasy

The chemical reaction K2SO4 (aq.) + BaCl2 (aq.) → 2KCl (aq.) + BaSO4 (solid) is an example of :

  1. A.Addition reaction
  2. B.Displacement reaction
  3. C.Decomposition reaction
  4. D.Double displacement reaction
Show answer
Correct answer: D. Double displacement reaction

Potassium and barium exchange their partner ions: K₂SO₄ and BaCl₂ swap ions to give KCl and BaSO₄. In a double displacement reaction two compounds exchange ions.