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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

Q561.Indian PolityAsked in: CDS · CDS-I 2023, GKMedium

Which one of the following is not a part of Article 51 of the Constitution of India?

  1. A.Promote international peace and security
  2. B.Maintain just and honourable relations between nations
  3. C.Use of UN peacekeeping force for resolution of international disputes
  4. D.Encourage settlement of international disputes by arbitration
Show answer
Correct answer: C. Use of UN peacekeeping force for resolution of international disputes

Article 51 says nothing about UN peacekeeping forces; it is a Directive Principle on the promotion of international peace and security.

Q564.Indian EconomyAsked in: CDS · CDS-II 2024, GKHard

Suppose there are only two normal goods in the economy, X and Y. If price of good X increases, which would be the correct statement from below ?

  1. A.Demand for good X decreases and demand for Y is indeterminate.
  2. B.Demand for good X decreases and demand for Y decreases.
  3. C.Demand for good X increases and demand for Y is indeterminate.
  4. D.Demand for good X increases and demand for Y decreases.
Show answer
Correct answer: A. Demand for good X decreases and demand for Y is indeterminate.

By the law of demand, a normal good is bought less when its own price rises, while the effect on the other good depends on two forces pulling in opposite directions.

Q565.Indian HistoryAsked in: CDS · CDS-I 2025, GKMedium

Which one among the following statements about Dr. Muthulakshmi Reddy, a freedom fighter, is not correct ?

  1. A.She was the first girl student to be admitted into a men's college.
  2. B.She was the first woman legislator in British India.
  3. C.She was a medical professional.
  4. D.She was honoured with Bharat Ratna in 1956.
Show answer
Correct answer: D. She was honoured with Bharat Ratna in 1956.

This statement is wrong: in 1956 Dr. Muthulakshmi Reddy received the Padma Bhushan, not the Bharat Ratna. Muthulakshmi Reddy (1886–1968) of the Madras Presidency broke several barriers.

Q567.Indian PolityAsked in: NDA · NDA-I 2026, GATMedium

Which one among the following Departments is not under the Ministry of Home Affairs?

  1. A.The Department of States
  2. B.The Department of Official Language
  3. C.The Department of Border Management
  4. D.The Department of Drinking Water and Sanitation
Show answer
Correct answer: D. The Department of Drinking Water and Sanitation

This department belongs to the Ministry of Jal Shakti, not to the Ministry of Home Affairs. The Ministry of Jal Shakti was formed in 2019 by merging the Ministry of Water Resources, River Development and Ganga Rejuvenation with the Ministry of Drinking Water and Sanitation.

Q568.GeographyAsked in: NDA · NDA-I 2017, GATMedium

Which of the following are correct with regard to Indian Monsoonal Rainfall ?

1. Largely governed by the topographical features

2. Regional and seasonal variation in the distribution of rainfall

3. Heavy downpour resulting in considerable runoff

4. Beginning and end of rain is regular and on time

Select the correct answer using the code given below :

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

Indian monsoon rain is shaped by relief, varies widely by region and season, and falls in heavy bursts, but its onset and withdrawal are not regular.

Q571.General ScienceAsked in: NDA · NDA-I 2020, GATEasy

At nearly 70°C, sodium bicarbonate shows the property of gradually decomposing, which makes it usable in bakery products. The product of decomposition responsible for this use of sodium bicarbonate is

  1. A.Carbon dioxide
  2. B.Hydrogen
  3. C.Water vapour
  4. D.Oxygen
Show answer
Correct answer: A. Carbon dioxide

On heating, sodium bicarbonate releases carbon dioxide gas, whose bubbles make dough rise and turn cakes and bread soft and spongy.

Q572.Indian PolityAsked in: NDA · NDA-I 2021, GATEasy

Which one of the following is included in Article 51A (Part IV A) of the Constitution of India?

  1. A.Fundamental Duties
  2. B.Suspension of Fundamental Rights
  3. C.Special Powers of Governors
  4. D.Writs
Show answer
Correct answer: A. Fundamental Duties

Article 51A, the only article in Part IV-A, lists the Fundamental Duties of every citizen of India. The Fundamental Duties were added by the 42nd Amendment of 1976 on the recommendation of the Swaran Singh Committee, and the idea was borrowed from the Constitution of the former USSR.

Q573.General ScienceAsked in: NDA · NDA-II 2022, GATEasy

Which one of the following statements about the speed of sound waves is not correct?

  1. A.The speed of sound waves in steel is higher than that in water.
  2. B.The speed of sound waves in air decreases with increase in temperature.
  3. C.The speed of sound waves in air increases with increase in temperature.
  4. D.The speed of sound waves in water is higher than that in air.
Show answer
Correct answer: B. The speed of sound waves in air decreases with increase in temperature.

The speed of sound in air increases, not decreases, as temperature rises, so statement B is the incorrect one. Sound in a gas travels faster when the gas is warmer, because its molecules move faster and pass the vibration on more quickly.

Q577.Science & TechnologyAsked in: NDA · NDA-I 2026, GATMedium

With reference to defence cooperation between India and Russia, which of the following statements is/are correct?

I. BrahMos Cruise Missile system is jointly developed by India's DRDO and Russia's NPO Mashinostroyeniya (NPOM).

II. The production site of the Indo-Russia Rifles Private Limited (IRRPL) joint venture is in Korwa, Madhya Pradesh under the 'Atmanirbhar Bharat' initiative.

Select the answer using the code given below.

  1. A.I only
  2. B.II only
  3. C.Both I and II
  4. D.Neither I nor II
Show answer
Correct answer: A. I only

BrahMos is indeed a joint DRDO-NPOM missile, but the IRRPL factory at Korwa is in Uttar Pradesh, not Madhya Pradesh.

Q579.Environment & EcologyAsked in: NDA · NDA-I 2017, GATMedium

Which one among the following is the correct order of tiger reserves situated from North to South in India ?

  1. A.Corbett - Simlipal - Sariska - Periyar
  2. B.Periyar - Sariska - Simlipal - Corbett
  3. C.Corbett - Sariska - Simlipal - Periyar
  4. D.Periyar - Simlipal - Sariska - Corbett
Show answer
Correct answer: C. Corbett - Sariska - Simlipal - Periyar

Going by their states, Uttarakhand lies furthest north, then Rajasthan, then Odisha, and Kerala lies furthest south.

Q580.General ScienceAsked in: NDA · NDA-II 2017, GATEasy

The term 'Probiotic' is applied to

  1. A.Organic food
  2. B.Antacid
  3. C.Antibiotic
  4. D.Live microbial food supplement
Show answer
Correct answer: D. Live microbial food supplement

Probiotics are live, helpful microbes taken in food or supplements to improve the balance of bacteria in the gut. The word means "for life", the opposite of antibiotic, "against life".