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UPSC CAPF GK Questions 2026

Static general knowledge fills most of Paper-I in UPSC CAPF. Of the six areas the CAPF (ACs) 2026 notice lists for General Ability and Intelligence, four are static: General Science; Indian Polity and Economy; History of India; and Indian and World Geography. The notice's wording shows the depth expected. Polity covers the political system and the Constitution of India, social systems, public administration, security issues and human rights with their indicators. Economy covers economic development in India. History covers social, economic and political aspects, including the growth of nationalism and the freedom movement. Geography covers physical, social and economic aspects of India and the world. General Science asks about everyday scientific phenomena and new areas such as Information Technology, Biotechnology and Environmental Science. This page holds GK24's topic-wise GK notes for UPSC CAPF, in English and Hindi, written as short facts and tables so that a topic can be revised in one sitting: Indian Polity, Indian History, Geography, Indian Economy, General Science, Environment and Ecology, Computer, and Art and Culture. The same notes serve Paper-II, whose essay part suggests modern Indian history, the freedom struggle, geography, polity and economy as topics. Read one topic at a time, then solve its quiz and the CAPF previous-year questions on this site to check what you have retained. General Mental Ability, the sixth area, is reasoning and arithmetic, and needs separate practice.

UPSC CAPF GK Questions with Answers

Q1281.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IEasy

Which one of the following statements about arteries is not correct?

  1. A.The inner lining is made of squamous endothelium.
  2. B.The middle layer is made of smooth muscle and elastic fibres.
  3. C.The outer layer is made of fibrous connective tissue with collagen fibres.
  4. D.Arteries have the thinnest walls amongst any other blood vessels.
Show answer
Correct answer: D. Arteries have the thinnest walls amongst any other blood vessels.

Arteries have the thickest walls of all blood vessels, not the thinnest, because they carry blood away from the heart under high pressure.

Q1284.Indian EconomyAsked in: UPSC CAPF · CAPF 2024, Paper IMedium

Consider the following statements regarding Public Goods and Externalities : 1. Non-rivalry and non-excludability are two characteristics of Public Goods 2. Market can provide the optimal amount of a good in the presence of externalities Which of the statements given above is/are correct ?

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

Public goods are non-rival and non-excludable, but externalities cause market failure, so the market does not supply the optimal amount.

Q1285.General ScienceAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

Which one of the following is not an exothermic reaction?

  1. A.Dissolution of calcium oxide in water
  2. B.Decomposition of vegetable matter into compost
  3. C.Decomposition of lead nitrate
  4. D.Dilution of sodium hydroxide with water
Show answer
Correct answer: C. Decomposition of lead nitrate

Lead nitrate breaks down only when it is heated strongly, so the reaction absorbs heat and is endothermic. On heating, lead nitrate gives lead oxide, brown fumes of nitrogen dioxide and oxygen: 2Pb(NO3)2 → 2PbO + 4NO2 + O2.

Q1286.GeographyAsked in: CDS · CDS-II 2019, GKEasy

Which one of the following is not correct regarding South India ?

  1. A.Diurnal range of temperature is less
  2. B.Annual range of temperature is less
  3. C.Temperature is high throughout the year
  4. D.Extreme climatic conditions are found
Show answer
Correct answer: D. Extreme climatic conditions are found

South India has an equable, maritime climate, not an extreme one, because it lies close to the equator and is surrounded by the sea on three sides.

Q1288.Environment & EcologyAsked in: CDS · CDS-II 2020, GKMedium

Which one of the following statements with regard to ozone is not correct?

  1. A.Ozone is found mostly at 15-55 km in the atmosphere.
  2. B.Ozone is produced by gaseous chemical reactions.
  3. C.16th November is celebrated as the International Day for the Preservation of the Ozone Layer.
  4. D.Ozone is a form of oxygen in which three oxygen atoms are bounded together.
Show answer
Correct answer: C. 16th November is celebrated as the International Day for the Preservation of the Ozone Layer.

The International Day for the Preservation of the Ozone Layer is observed on 16 September, not 16 November. The date marks the signing of the Montreal Protocol on 16 September 1987, the treaty that phased out chlorofluorocarbons and other ozone-depleting substances.

Q1291.Indian EconomyAsked in: CDS · CDS-I 2022, GKMedium

Which one of the following statements with regard to the National Rural Employment Guarantee Act, 2005 is correct ?

  1. A.It ensures 175 days of employment to needy persons in rural areas.
  2. B.It gives higher wages to women workers.
  3. C.People are generally given both skilled and unskilled jobs.
  4. D.This is implemented only in rural areas of India.
Show answer
Correct answer: D. This is implemented only in rural areas of India.

As its name says, the Act guarantees work to households in rural areas; towns and cities are outside its scope.

Q1294.Environment & EcologyAsked in: CDS · CDS-II 2023, GKEasy

Energy and nutrients flow from one trophic level to another in an ecosystem. Which one of the following statements correctly describes the direction of flow of energy and nutrients in an ecosystem ?

  1. A.Energy flow is cyclic and nutrient flow is unidirectional.
  2. B.Energy flow is unidirectional and nutrient flow is cyclic.
  3. C.Both energy and nutrient flow are unidirectional.
  4. D.Both energy and nutrient flow are cyclic.
Show answer
Correct answer: B. Energy flow is unidirectional and nutrient flow is cyclic.

Energy passes one way from the Sun through the food chain and is lost as heat, while nutrients are used again and again.

Q1295.General ScienceAsked in: CDS · CDS-I 2024, GKMedium

Which one of the following is known as cetane?

  1. A.Hexadecane
  2. B.Heptadecane
  3. C.Octadecane
  4. D.Nonadecane
Show answer
Correct answer: A. Hexadecane

Cetane is the common name of n-hexadecane, C16H34, a straight-chain alkane with sixteen carbon atoms. Cetane ignites very readily when compressed, which is exactly what a diesel engine needs, because diesel fuel is not lit by a spark but catches fire from the heat of compressed air.

Q1297.Books & AuthorsAsked in: CDS · CDS-II 2025, GKMedium

Which of the following books portrays three images of the Mother Goddess : "Mother as she was", "Mother as she is" and "Mother as she will be"?

  1. A.Durgeshnandini
  2. B.Kapalkundala
  3. C.Anandamath
  4. D.Devi Chaudhurani
Show answer
Correct answer: C. Anandamath

In Bankim Chandra Chattopadhyay's Bengali novel Anandamath (1882), the monk-rebels are shown three images of the Mother Goddess standing for the motherland: as she was, as she is and as she will be.

Q1298.Environment & EcologyAsked in: CDS · CDS-II 2026, GKEasy

UNESCO World Heritage site Nanda Devi National Park is located in which one of the following States ?

  1. A.Arunachal Pradesh
  2. B.Uttarakhand
  3. C.Himachal Pradesh
  4. D.Sikkim
Show answer
Correct answer: B. Uttarakhand

Nanda Devi National Park lies in the Chamoli district of Uttarakhand, around India's second-highest peak, Nanda Devi. The park is a vast glacial basin ringed by high peaks and was inscribed on the UNESCO World Heritage list in 1988 for its wild, untouched landscape.

Q1299.General ScienceAsked in: CDS · CDS-II 2016, GKMedium

In the gamma decay of a nucleus

  1. A.the mass number of the nucleus changes whereas its atomic number does not change
  2. B.the mass number of the nucleus does not change whereas its atomic number changes
  3. C.both the mass number and the atomic number of the nucleus change
  4. D.neither the mass number nor the atomic number of the nucleus changes
Show answer
Correct answer: D. neither the mass number nor the atomic number of the nucleus changes

A gamma ray is a photon of energy with no mass and no charge, so emitting it leaves the count of protons and neutrons unchanged.