Skip to content
GK24

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

Q663.Indian EconomyAsked in: CDS · CDS-II 2024, GKHard

Which one of the following statements for a firm's equilibrium in Perfect Competition is not correct ?

  1. A.The market price must be greater or equal to average variable cost in the short run.
  2. B.The market price must be equal to marginal cost.
  3. C.The market price must be equal to average cost in the long run.
  4. D.The marginal cost decreases at the equilibrium output.
Show answer
Correct answer: D. The marginal cost decreases at the equilibrium output.

This statement is not correct, because at the equilibrium of a competitive firm marginal cost must be rising. A firm in perfect competition is a price taker, so the price it gets equals its marginal revenue.

Q664.Indian PolityAsked in: CDS · CDS-I 2025, GKMedium

Which one among the following statements about an adjournment motion in the Parliament of India is not correct ?

  1. A.Its objective is to draw attention of the House to any recent matter of urgent public importance.
  2. B.Adjournment motion is an extraordinary procedure.
  3. C.This motion can be invoked on any matter of urgent importance that may even be within the jurisdiction of a State Government.
  4. D.The Chair has absolute discretion to refuse consent.
Show answer
Correct answer: C. This motion can be invoked on any matter of urgent importance that may even be within the jurisdiction of a State Government.

The statement is not correct, because an adjournment motion can be moved only on a matter that primarily concerns the Union Government, not one within a State Government's jurisdiction.

Q665.General ScienceAsked in: CDS · CDS-II 2025, GKEasy

The linear momentum of a particle is conserved if:

  1. A.the net force on it is maximum.
  2. B.the net force on it is zero.
  3. C.the net torque on it is zero.
  4. D.the net work done on it is maximum.
Show answer
Correct answer: B. the net force on it is zero.

Linear momentum stays constant only when no net external force acts. Linear momentum is the product of mass and velocity, p = mv.

Q666.GeographyAsked in: CDS · CDS-II 2016, GKMedium

Which one of the following statements is not correct?

  1. A.Position of the Sun, Earth and Moon in a straight line of 180° angle is known as syzygy.
  2. B.Syzygy conjunction causes solar eclipse.
  3. C.Syzygy opposition causes lunar eclipse.
  4. D.Syzygy conjunction occurs at the time of perihelion only.
Show answer
Correct answer: D. Syzygy conjunction occurs at the time of perihelion only.

This statement is not correct, because conjunction happens at every new moon, about once a month, and has nothing to do with the Earth's closest point to the Sun.

Q667.GeographyAsked in: CDS · CDS-I 2017, GKMedium

Which one of the following about sugar industry of Peninsular India is not correct?

  1. A.High yield per hectare of sugarcane
  2. B.Higher sucrose content
  3. C.Long crushing season
  4. D.Most of the mills in the Peninsula are located mainly along the east coast
Show answer
Correct answer: D. Most of the mills in the Peninsula are located mainly along the east coast

This statement is not correct, because the peninsular sugar mills are concentrated mainly in Maharashtra and Karnataka, in the west and the interior of the plateau.

Q668.Awards & HonoursAsked in: CDS · CDS-II 2017, GKMedium

The Nobel Prize in Physics for the year 2016 was given to

  1. A.David J. Thouless
  2. B.F. Duncan M. Haldane
  3. C.J. Michael Kosterlitz
  4. D.All of them
Show answer
Correct answer: D. All of them

The 2016 Nobel Prize in Physics was shared by David J. Thouless, F. Duncan M. Haldane and J. Michael Kosterlitz, three British-born physicists working in the United States.

Q669.General ScienceAsked in: CDS · CDS-I 2018, GKMedium

Which of the following classes of animals has/have three-chambered heart?

  1. A.Pisces and Amphibia
  2. B.Amphibia and Reptilia
  3. C.Reptilia only
  4. D.Amphibia only
Show answer
Correct answer: B. Amphibia and Reptilia

Amphibians and most reptiles have a heart with three chambers: two atria and one ventricle. In frogs and toads, oxygen-rich blood from the lungs and oxygen-poor blood from the body both reach the single ventricle, so some mixing takes place.

Q671.Static GKAsked in: CDS · CDS-I 2020, GKEasy

Hilsa is the national fish of

  1. A.Pakistan
  2. B.India
  3. C.Bangladesh
  4. D.Nepal
Show answer
Correct answer: C. Bangladesh

The hilsa, called ilish in Bengali, is the national fish of Bangladesh. It is a fish of the herring family that lives in the sea and swims up rivers to breed, a habit called anadromous migration.

Q672.General ScienceAsked in: CDS · CDS-II 2020, GKEasy

Pearls are harvested from

  1. A.Prawn
  2. B.Pila
  3. C.Tuna
  4. D.Oyster
Show answer
Correct answer: D. Oyster

Pearls are harvested from pearl oysters, which are bivalve molluscs. When a foreign particle, such as a grain of sand or a parasite, gets inside the shell, the oyster's mantle covers it layer after layer with nacre, the shiny material also called mother of pearl.

Q673.General ScienceAsked in: CDS · CDS-I 2021, GKMedium

Which one of the following laws of electromagnetism does not give the direction of magnetic field ?

  1. A.Right-hand thumb rule
  2. B.Fleming's left-hand rule
  3. C.Fleming's right-hand rule
  4. D.Faraday's law of electromagnetic induction
Show answer
Correct answer: D. Faraday's law of electromagnetic induction

Faraday's law is a law of magnitude, not a direction rule. It states that the emf induced in a circuit is proportional to the rate at which the magnetic flux through it changes.

Q675.Science & TechnologyAsked in: CDS · CDS-I 2022, GKHard

To study which one of the following was a spacecraft launched that would be farthest from the Sun and would run exclusively on solar power ?

  1. A.Jupiter's Trojan asteroids
  2. B.Saturn's rings and moons
  3. C.Mars' atmosphere
  4. D.Kuiper Belt and Oort Cloud
Show answer
Correct answer: A. Jupiter's Trojan asteroids

NASA's Lucy mission, launched in October 2021, is the solar-powered spacecraft that travels farthest from the Sun to study the Trojan asteroids.

Q676.GeographyAsked in: CDS · CDS-I 2023, GKMedium

Which of the following statements is/are correct?

1. Visakhapatnam Port is a land-locked harbour.

2. Deendayal Port is a tidal port.

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

Both statements describe the two ports correctly. Visakhapatnam in Andhra Pradesh is India's deepest land-locked and protected port on the east coast.

Q677.Indian PolityAsked in: CDS · CDS-I 2025, GKHard

Which of the following descriptions with regard to Parliamentary Privilege for Members of the Parliament of India is/are correct ?

1. The Speaker is empowered to refer suo moto any question of privilege for investigation

2. A question of privilege is accorded priority over other items in the List of Business

3. The privilege extends to freedom from preventive arrest or detention

Select the answer using the code given below :

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

Statements 1 and 2 describe the Lok Sabha's privilege procedure correctly, while statement 3 overstates the freedom from arrest. Under the Rules of Procedure of the Lok Sabha, the Speaker may refer any question of privilege to the Committee of Privileges on his own, without a motion from a member.

Q679.Indian HistoryAsked in: CDS · CDS-II 2026, GKMedium

The Sylhet Referendum was held in ?

  1. A.1947
  2. B.1948
  3. C.1949
  4. D.1950
Show answer
Correct answer: A. 1947

The Sylhet Referendum was held in early July 1947, just before Partition, to decide whether Sylhet district of Assam would stay with India or join East Bengal, which was going to Pakistan.