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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

Q4781.Science & TechnologyEasy

Which body is the single window for authorising the space activities of private companies in India?

  1. A.ISRO
  2. B.NSIL
  3. C.IN-SPACe
  4. D.Antrix Corporation
Show answer
Correct answer: C. IN-SPACe

Under the reforms of 2020 and the Indian Space Policy of 2023, the Indian National Space Promotion and Authorisation Centre is the single-window autonomous body that authorises, promotes, hand-holds and supervises the space activities of non-government entities, and that permits them to use the facilities of the Department of Space.

Q4783.Science & TechnologyMedium

Agnibaan SOrTeD, flown in 2024, is notable for which technological first?

  1. A.The first Indian rocket to use solid propellant
  2. B.The first flight with a single-piece three-dimensionally printed semi-cryogenic engine
  3. C.The first Indian rocket to reach orbit
  4. D.The first reusable Indian booster to land back
Show answer
Correct answer: B. The first flight with a single-piece three-dimensionally printed semi-cryogenic engine

Agnibaan SOrTeD, flown by Agnikul Cosmos of Chennai in 2024, carried the Agnilet engine, a semi-cryogenic engine printed as a single piece, and it lifted off from a launch pad the company had built for itself at the Satish Dhawan Space Centre.

Q4787.Science & TechnologyEasy

Where is the headquarters of IN-SPACe, the single-window agency for India's private space activity, located?

  1. A.Bengaluru
  2. B.Ahmedabad
  3. C.Hyderabad
  4. D.Thiruvananthapuram
Show answer
Correct answer: B. Ahmedabad

The Indian National Space Promotion and Authorisation Centre, IN-SPACe, is an autonomous body under the Department of Space with its headquarters at Ahmedabad in Gujarat, the city where India's space programme itself began at the Physical Research Laboratory founded by Vikram Sarabhai.

Q4788.Environment & EcologyHard

The Leopold matrix is a technique used in Environmental Impact Assessment for

  1. A.measuring the concentration of pollutants in water
  2. B.identifying and rating the interaction between project activities and environmental factors
  3. C.estimating the cost of mitigation measures
  4. D.mapping the boundaries of eco-sensitive zones
Show answer
Correct answer: B. identifying and rating the interaction between project activities and environmental factors

The Leopold matrix is the best known of the matrix methods: the activities of a project are set along one axis and the components of the environment along the other, and each cell where an activity meets a component is marked for the magnitude and the importance of the impact.

Q4789.Environment & EcologyHard

In the practice of Environmental Impact Assessment, a Rapid EIA differs from a Comprehensive EIA mainly because it

  1. A.uses baseline data of one season, excluding the monsoon
  2. B.does not need an Environment Management Plan
  3. C.is prepared by the government instead of a consultant
  4. D.applies only to projects inside protected areas
Show answer
Correct answer: A. uses baseline data of one season, excluding the monsoon

A rapid assessment is based on baseline data collected over a single season other than the monsoon, which allows the study to be completed quickly, while a comprehensive assessment collects data over all the seasons of a full year and therefore captures seasonal variation in air quality, water flow and…

Q4790.Environment & EcologyEasy

An appeal against the grant of environmental clearance lies before which forum?

  1. A.Central Pollution Control Board
  2. B.National Green Tribunal
  3. C.National Biodiversity Authority
  4. D.Central Zoo Authority
Show answer
Correct answer: B. National Green Tribunal

The tribunal was created by the National Green Tribunal Act of 2010, its principal bench sits at New Delhi, and it hears appeals against the grant or refusal of environmental clearance as well as disputes under other environmental laws.

Q4792.Environment & EcologyMedium

Who conducts the public hearing during the public consultation stage of the EIA process?

  1. A.Expert Appraisal Committee
  2. B.State Pollution Control Board
  3. C.District collector alone
  4. D.Ministry of Environment, Forest and Climate Change
Show answer
Correct answer: B. State Pollution Control Board

The notification of 2006 makes the State Pollution Control Board, or the pollution control committee in a union territory, responsible for conducting the public hearing at or near the site of the project, for recording the proceedings and for sending that record to the appraisal committee.

Q4794.Environment & EcologyMedium

Which of the following is the correct order of the stages of the environmental clearance process?

  1. A.Scoping, screening, appraisal, public consultation
  2. B.Screening, scoping, public consultation, appraisal
  3. C.Public consultation, screening, scoping, appraisal
  4. D.Screening, public consultation, scoping, appraisal
Show answer
Correct answer: B. Screening, scoping, public consultation, appraisal

Screening comes first and decides whether a Category B project needs a full assessment, making it B1, or does not, making it B2.

Q4795.Environment & EcologyMedium

Environmental clearance for a Category A project is granted by which authority?

  1. A.State Environment Impact Assessment Authority
  2. B.Ministry of Environment, Forest and Climate Change
  3. C.Central Pollution Control Board
  4. D.National Green Tribunal
Show answer
Correct answer: B. Ministry of Environment, Forest and Climate Change

Under the notification of 2006, a Category A project is appraised by the Expert Appraisal Committee constituted at the centre, and the ministry grants or refuses the prior environmental clearance on that committee's recommendation.

Q4796.Environment & EcologyEasy

The Environmental Impact Assessment Notification currently in force in India was issued in which year?

  1. A.1986
  2. B.1994
  3. C.2006
  4. D.2010
Show answer
Correct answer: C. 2006

The EIA Notification of 2006 replaced the earlier notification of 1994 and reorganised the whole clearance process, chiefly by dividing projects into Category A, appraised and cleared at the central level, and Category B, appraised and cleared at the state level, and by laying down the four stages of screening…

Q4797.Environment & EcologyEasy

The Environmental Impact Assessment Notification in India is issued under which Act?

  1. A.Wild Life (Protection) Act, 1972
  2. B.Water (Prevention and Control of Pollution) Act, 1974
  3. C.Environment (Protection) Act, 1986
  4. D.Forest (Conservation) Act, 1980
Show answer
Correct answer: C. Environment (Protection) Act, 1986

Section 3 of that Act gives the central government power to take all measures it thinks necessary to protect and improve the quality of the environment, and the EIA Notifications of 1994 and 2006 were both issued under it.

Q4798.Environment & EcologyMedium

Which country was the first to make Environmental Impact Assessment a statutory requirement?

  1. A.United Kingdom
  2. B.United States of America
  3. C.Sweden
  4. D.India
Show answer
Correct answer: B. United States of America

The National Environmental Policy Act of 1969, which came into force in 1970, required every agency of the American federal government to prepare a statement of the environmental effects of any major action it proposed, and that requirement is taken as the beginning of environmental impact assessment as a legal…

Q4799.Indian PolityEasy

What is the quorum required to constitute a sitting of either House of Parliament?

  1. A.One-fourth of the total number of members of the House
  2. B.One-tenth of the total number of members of the House
  3. C.One-third of the total number of members of the House
  4. D.Fifty members of the House
Show answer
Correct answer: B. One-tenth of the total number of members of the House

Article 100(3) of the Constitution lays down that the quorum to constitute a sitting of either House shall be one-tenth of the total number of members of that House, and the presiding officer is counted in that one-tenth.