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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

Q421.General ScienceAsked in: NDA · NDA-I 2017, GATMedium

The time period of a simple pendulum made using a thin copper wire of length L is T. Suppose the temperature of the room in which this simple pendulum is placed increases by 30°C, what will be the effect on the time period of the pendulum ?

  1. A.T will increase slightly
  2. B.T will remain the same
  3. C.T will decrease slightly
  4. D.T will become more than 2 times
Show answer
Correct answer: A. T will increase slightly

Heat makes the copper wire expand a little, and a longer pendulum swings a little more slowly. The time period of a simple pendulum is T = 2π√(L/g), so it grows with the square root of the length.

Q422.General ScienceAsked in: NDA · NDA-II 2017, GATEasy

Which one of the following statements about energy is correct?

  1. A.Energy can be created as well as destroyed.
  2. B.Energy can be created but not destroyed.
  3. C.Energy can neither be created nor destroyed.
  4. D.Energy cannot be created but can be destroyed.
Show answer
Correct answer: C. Energy can neither be created nor destroyed.

This is the law of conservation of energy: energy only changes from one form to another. In any isolated system the total energy stays the same.

Q424.General ScienceAsked in: NDA · NDA-I 2025, GATEasy

Which one of the following statements is NOT correct ?

  1. A.An ammeter is always connected in series in the circuit to measure the current
  2. B.A Voltmeter is always connected in parallel in a circuit to measure the voltage
  3. C.A voltmeter has a high resistance and an ammeter has a low resistance
  4. D.A voltmeter has a low resistance and an ammeter has a high resistance
Show answer
Correct answer: D. A voltmeter has a low resistance and an ammeter has a high resistance

This reverses the truth: a voltmeter has a very high resistance and an ammeter a very low one. An ammeter measures the current flowing through a circuit, so it is placed in series and the whole current passes through it.

Q429.DefenceEasy

In which of these areas did DRDO report achieving 100 per cent of its targets under Special Campaign 6.0?

  1. A.Recruitment of scientists
  2. B.Missile test schedules
  3. C.Pending public grievances and Parliamentary Assurances
  4. D.Export clearances
Show answer
Correct answer: C. Pending public grievances and Parliamentary Assurances

DRDO reported clearing all of its targets on three fronts: public grievances awaiting redressal, Parliamentary Assurances, and references that pass between ministries.

Q430.DefenceHard

How much revenue did DRDO generate from the eco-friendly disposal of scrap and obsolete hardware under Special Campaign 6.0?

  1. A.Rs 12 lakh
  2. B.Rs 35 lakh
  3. C.Rs 60 lakh
  4. D.Rs 1.2 crore
Show answer
Correct answer: B. Rs 35 lakh

The clearing of obsolete equipment, redundant furniture and scrap material from DRDO campuses, the residential complexes attached to them and the research testing ranges was carried out in an environment-friendly manner, and the disposal brought in that amount as revenue.

Q431.DefenceMedium

Where is the shredded paper from DRDO's weeded-out files sent?

  1. A.Khadi and Village Industries Commission
  2. B.National Archives of India
  3. C.Central Pollution Control Board
  4. D.Bharat Heavy Electricals Limited
Show answer
Correct answer: A. Khadi and Village Industries Commission

Under Special Campaign 6.0 the files that DRDO has earmarked for weeding out, about 20,000 of them, are being disposed of in line with record retention schedules, and the paper left after shredding is handed to KVIC so that it can be recycled instead of being dumped.

Q432.DefenceMedium

Which department coordinates the Special Campaign for Disposal of Pending Matters?

  1. A.Department of Personnel and Training
  2. B.Department of Administrative Reforms and Public Grievances
  3. C.Department of Defence Research and Development
  4. D.Department of Expenditure
Show answer
Correct answer: B. Department of Administrative Reforms and Public Grievances

It coordinates the Special Campaign for Disposal of Pending Matters, and the sixth edition of that campaign has now been taken up by the Defence Research and Development Organisation across its headquarters, laboratories and establishments.

Q433.General ScienceAsked in: CDS · CDS-II 2026, GKHard

In which of the following processes, active transport is NOT used?

  1. A.Reabsorption of amino acids and glucose from kidney into blood
  2. B.Loading sugar from photosynthesizing leaf cells into phloem tissue for transportation
  3. C.Passage of Na+ and Cl- through hydrophilic channel created by protein molecules
  4. D.Absorption of glucose and electrolytes into the bloodstream
Show answer
Correct answer: C. Passage of Na+ and Cl- through hydrophilic channel created by protein molecules

Movement of ions through protein channels is facilitated diffusion, a passive process that needs no energy from ATP. Active transport moves substances against their concentration gradient, from low to high concentration, using carrier proteins and energy, usually from ATP.

Q434.Art & CultureAsked in: CDS · CDS-II 2016, GKMedium

Which of the following Gods are also known as Lokapalas or the Guardians of the Universe?

  1. A.Yama, Indra, Varuna and Kubera
  2. B.Indra, Varuna, Skanda and Kubera
  3. C.Indra, Varuna, Yama and Brahma
  4. D.Yama, Shiva, Kubera and Indra
Show answer
Correct answer: A. Yama, Indra, Varuna and Kubera

These four are the classical Lokapalas, each guarding one of the four main directions of the world. In Hindu tradition, as described in texts such as the Ramayana and the Mahabharata and in later iconography, Indra guards the east, Yama the south, Varuna the west and Kubera the north.

Q435.Indian HistoryAsked in: CDS · CDS-I 2017, GKHard

Which of the following statements about the Ilbert Bill (1883) is/are correct?

1. It proposed to grant limited criminal jurisdiction to native officials.

2. It proposed to grant complete civil and criminal jurisdiction to native officials.

3. The proposed Bill generated opposition from England's European subjects in India.

4. In spite of opposition to the Bill, it was passed without any modifications.

Select the correct answer using the code given below.

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

The Bill proposed only a limited criminal jurisdiction for Indian officials over Europeans, and it met fierce European opposition that forced a diluted version.

Q436.General ScienceAsked in: CDS · CDS-II 2017, GKEasy

An emulsion consists of

  1. A.one liquid and one solid
  2. B.one liquid and one gas
  3. C.two liquids
  4. D.two solids
Show answer
Correct answer: C. two liquids

An emulsion is a colloid in which tiny droplets of one liquid are spread through another liquid with which it does not mix.

Q437.Indian PolityAsked in: CDS · CDS-I 2018, GKMedium

According to the Election Commission of India, in order to be recognized as a 'National Party', a political party must be treated as a recognized political party in how many States?

  1. A.At least two States
  2. B.At least three States
  3. C.At least four States
  4. D.At least five States
Show answer
Correct answer: C. At least four States

Under the Election Symbols (Reservation and Allotment) Order, 1968, a party recognised as a state party in four or more states qualifies as a national party.

Q438.General ScienceAsked in: CDS · CDS-I 2019, GKMedium

An electron and a proton starting from rest get accelerated through potential difference of 100 kV. The final speeds of the electron and the proton are Ve and Vp respectively. Which one of the following relations is correct?

  1. A.Ve > Vp
  2. B.Ve < Vp
  3. C.Ve = Vp
  4. D.Cannot be determined
Show answer
Correct answer: A. Ve > Vp

Both particles gain the same kinetic energy, but the electron is far lighter, so it ends up much faster. When a charge q is accelerated through a potential difference V, it gains kinetic energy equal to qV.

Q439.Indian PolityAsked in: CDS · CDS-I 2020, GKEasy

The 11th Schedule of the Constitution of India distributes powers between

  1. A.the Union and the State Legislatures
  2. B.the State Legislatures and the Panchayat
  3. C.the Municipal Corporation and the Panchayat
  4. D.the Gram Sabha and the Panchayat
Show answer
Correct answer: B. the State Legislatures and the Panchayat

The Eleventh Schedule lists 29 subjects on which the state legislature may give powers and responsibilities to the Panchayats. The Eleventh Schedule was added by the 73rd Constitutional Amendment Act, 1992, along with Part IX on Panchayats.

Q440.General ScienceAsked in: CDS · CDS-II 2020, GKMedium

A luminous object is placed at a distance of 40 cm from a converging lens of focal length 25 cm. The image obtained in the screen is

  1. A.erect and magnified
  2. B.erect and smaller
  3. C.inverted and magnified
  4. D.inverted and smaller
Show answer
Correct answer: C. inverted and magnified

The object lies between F and 2F of the convex lens (25 cm and 50 cm), and such an object always gives a real, inverted and enlarged image beyond 2F. Using the lens formula 1/v − 1/u = 1/f with u = −40 cm and f = +25 cm gives…