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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

Q4182.Indian PolityAsked in: NDA · NDA-I 2024, GATHard

Under Article 371A of the Constitution of India, with respect to which of the following item(s) the Acts of the Parliament of India shall not apply to the State of Nagaland, unless the Legislative Assembly of the State of Nagaland by a resolution so decides ?

1. Religious or social practices of Nagas

2. Naga customary law and procedure

3. Ownership and transfer of land and its resources

4. Boundaries of Nagaland with other states

Select the answer using the code given below :

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

Article 371A protects Naga religious and social practices, customary law and procedure, and land ownership, but says nothing about the State's boundaries.

Q4183.General ScienceAsked in: NDA · NDA-II 2024, GATEasy

Which one among the following separation techniques is used for blood tests in diagnostic laboratories ?

  1. A.Filtration
  2. B.Chromatography
  3. C.Centrifugation
  4. D.Crystallization
Show answer
Correct answer: C. Centrifugation

Diagnostic laboratories spin blood samples in a centrifuge to separate the plasma or serum from the blood cells. In centrifugation a sample is rotated at high speed, so the denser particles are pushed to the bottom of the tube and the lighter liquid stays on top.

Q4184.Indian PolityAsked in: NDA · NDA-I 2025, GATEasy

The Constitution (Seventy-third Amendment) Act provides for

  1. A.an elaborate system of establishing municipal self-government
  2. B.an elaborate system of establishing panchayats as units of self-government
  3. C.establishing a Commission for Linguistic Minorities
  4. D.the creation of the Jharkhand State
Show answer
Correct answer: B. an elaborate system of establishing panchayats as units of self-government

The 73rd Amendment gave panchayats constitutional status. The Constitution (Seventy-third Amendment) Act, 1992 came into force on 24 April 1993, the date now marked as National Panchayati Raj Day.

Q4185.General ScienceAsked in: NDA · NDA-II 2025, GATEasy

Which one among the following statements is correct?

  1. A.Pressure has magnitude as well as direction
  2. B.As we go deeper in a liquid, the pressure decreases
  3. C.Action and reaction forces act on the same object
  4. D.Pascal and N/m² represent the same unit
Show answer
Correct answer: D. Pascal and N/m² represent the same unit

One pascal is defined as a force of one newton acting on an area of one square metre. Pressure is force per unit area, and its SI unit, named after the French scientist Blaise Pascal, is the pascal (Pa): 1 Pa = 1 N/m².

Q4186.General ScienceAsked in: NDA · NDA-I 2026, GATHard

A floating body is in stable state. Which one of the following is correct?

  1. A.The centre of gravity of the body is above its centre of buoyancy.
  2. B.The centre of gravity of the body is below its centre of buoyancy.
  3. C.The centre of gravity of the body coincides with its centre of buoyancy.
  4. D.The centre of gravity of the body is below the metacentre.
Show answer
Correct answer: D. The centre of gravity of the body is below the metacentre.

A floating body is stable only when its metacentre lies above its centre of gravity. When a floating body tilts slightly, its centre of buoyancy, the centre of the displaced liquid, shifts to one side.

Q4190.InternationalEasy

Which document was adopted at the first BIMSTEC Home Ministers Meeting held in New Delhi?

  1. A.Bangkok Vision
  2. B.Delhi Declaration
  3. C.Bay of Bengal Charter
  4. D.Jamnagar Protocol
Show answer
Correct answer: B. Delhi Declaration

The first meeting of BIMSTEC Home Ministers, hosted by India in New Delhi and chaired by Union Home and Cooperation Minister Amit Shah, adopted this declaration, which lays down the principles behind security cooperation in the grouping.

Q4191.DefenceMedium

What does the crest of the Indian Navy's Multi-Purpose Vessel Samarthak depict?

  1. A.A tiger leaping over a wave
  2. B.An Indian elephant emerging from the waves
  3. C.A golden eagle above an anchor
  4. D.A trident crossed with a sword
Show answer
Correct answer: B. An Indian elephant emerging from the waves

The crest was designed around the formidable Indian elephant to convey strength, intelligence and agility, the qualities the Navy associates with this class of ship.

Q4195.General ScienceAsked in: CDS · CDS-I 2020, GKEasy

In a periscope, the two plane mirrors are kept

  1. A.parallel to each other
  2. B.perpendicular to each other
  3. C.at an angle of 60° with each other
  4. D.at an angle of 45° with each other
Show answer
Correct answer: A. parallel to each other

A simple periscope has two plane mirrors facing each other in parallel, each tilted at 45° to the tube. Light from the object enters the top opening and strikes the upper mirror, which is set at 45° and turns the light through 90° down the tube.

Q4198.General ScienceAsked in: CDS · CDS-II 2021, GKMedium

Which one of the following statements about variations is not true?

  1. A.Variation is minimum in asexual reproduction.
  2. B.All variations in a species have equal chances of survival.
  3. C.Changes in genetic constitution result in variation.
  4. D.Variants can be selected by environmental factors.
Show answer
Correct answer: B. All variations in a species have equal chances of survival.

This is false, because variations differ in how well they suit the environment, and that difference is the basis of natural selection.

Q4199.General ScienceAsked in: CDS · CDS-I 2022, GKMedium

While burning hydrocarbon fuels, if we see a yellow flame with lots of black smoke, it means that the fuel is:

  1. A.made of saturated hydrocarbons.
  2. B.made of unsaturated hydrocarbons.
  3. C.burning completely.
  4. D.wet.
Show answer
Correct answer: B. made of unsaturated hydrocarbons.

Unsaturated hydrocarbons have a high carbon content and burn with a yellow, sooty flame, while saturated ones usually burn with a clean blue flame.