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.
Which one of the following is known as Wood Spirit ?
Methanol (CH3OH) is called wood spirit or wood alcohol because it was first obtained by the destructive distillation of wood.
Read the full explanation →Oil and water do NOT mix because of the property of
Where oil meets water, the unequal pull of their molecules sets up a surface (interfacial) tension that keeps the two liquids as separate layers.
Read the full explanation →When a white light beam is made to fall on a hollow prism filled with water, it breaks into seven constituent colours. Which of the following colours suffers the maximum angle of deviation?
Violet light has the shortest wavelength among the visible colours, so the medium bends it the most. The splitting of white light into its colours is called dispersion.
Read the full explanation →Which organelle other than nucleus in eukaryotic cells has its own DNA, ribosomes and proteins ?
Mitochondria carry their own circular DNA and their own ribosomes, so they can make some of their own proteins. Mitochondria are the sites of aerobic respiration, where ATP is produced, which is why they are called the powerhouse of the cell.
Read the full explanation →Which one among the following is an example of endothermic process ?
Photosynthesis absorbs energy from sunlight to build glucose, so it is an endothermic process. An endothermic process takes in heat or light from its surroundings, while an exothermic one gives energy out.
Read the full explanation →Which one of the following cases in the Supreme Court of India dealt with the issue of 'creamy layer' among the backward classes ?
In this 1992 case, also called the Mandal case, the Supreme Court held that the creamy layer must be kept out of OBC reservation.
Read the full explanation →Springs are common in which of the following areas? 1. Well jointed rocks 2. Arid areas with underlying rocks 3. Karst topography 4. Tilted strata Select the correct answer using the code given below.
Springs appear where groundwater meets a barrier or a surface outlet, which happens in jointed rocks, karst areas and tilted strata, but not commonly in dry regions.
Read the full explanation →What is the real interest rate on a Credit Card loan bearing 24% interest per year, if the rate of inflation is 10% ?
The real interest rate is the nominal rate minus the rate of inflation: 24 minus 10 gives 14 percent. The nominal interest rate is the rate written on the loan, here 24 percent a year.
Read the full explanation →An electron and a photon have same de Broglie wavelength. It implies that they have the same
The de Broglie wavelength depends only on momentum, so equal wavelengths mean equal momenta. In 1924 Louis de Broglie proposed that every moving particle has a wave linked to it, with wavelength λ = h/p, where h is Planck's constant and p is the linear momentum.
Read the full explanation →When calcium metal reacts with sulphuric acid, the reaction stops after a short while. Why?
The product forms a coating that shuts the acid out. Calcium reacts with dilute sulphuric acid to give calcium sulphate and hydrogen gas: Ca + H2SO4 gives CaSO4 + H2.
Read the full explanation →Which one of the following activities was not a part of the daily time-table for a King as prescribed in Arthashastra ?
Kautilya's daily time-table for the king does not include moving through the town in disguise; he learns about his people through spies instead.
Read the full explanation →Which one among the following statements with respect to the atomic number of an atom is correct ?
The atomic number (Z) is defined as the number of protons in the nucleus of an atom. Every atom of an element has the same number of protons, so the atomic number identifies the element: hydrogen has 1, carbon 6 and oxygen 8.
Read the full explanation →Which one among the following elements is not a part of the 'Panchamrit' of India's climate action presented at COP-26?
India's net zero target announced at COP-26 is the year 2070, not 2047. At COP-26 in Glasgow in November 2021, Prime Minister Narendra Modi announced five commitments called the Panchamrit (five nectar elements).
Read the full explanation →'The Sasakawa Award' of United Nations is given in recognition of the work done in the field of
The United Nations Sasakawa Award for Disaster Risk Reduction honours people and institutions that work to reduce the risk of disasters.
Read the full explanation →Which one of the following Indian places receives minimum rainfall in a year?
Leh lies in the rain shadow of the Great Himalaya and gets only about 100 mm of precipitation a year, making it one of the driest places in India.
Read the full explanation →Who among the following founded the Bhil Seva Mandal in 1922 ?
A. V. Thakkar, known as Thakkar Bapa, founded the Bhil Seva Mandal in 1922 to work for the Bhil tribals of the Panchmahal district of Gujarat.
Read the full explanation →The Department for Promotion of Industry and Internal Trade (DPIIT) has revised the base year index of Eight Core Industries having a combined weight of about 40.27 percent in the Index of Industrial Production. Which one of the following is not one of the Eight Core Industries ?
Rubber products are not among the Eight Core Industries tracked by the Index of Eight Core Industries.
Read the full explanation →Which one of the following statements is true for James Webb Space Telescope launched in December 2021?
The telescope sits near the second Lagrange point (L2), about 1.5 million km from Earth, and goes round the Sun along with the Earth.
Read the full explanation →Identify the type of climate on the basis of the following characteristics relating to it : I. Temperature is high throughout the year. II. Rainfall is variable with a short wet season and a longer dry season. III. Climate of Sudan and Paraguay is an example of this climate type. Select the answer using the code given below :
This is the savanna (Sudan type) climate: hot all year, with a short rainy summer and a long dry season.
Read the full explanation →Consider the following statements : 1. Erok Sim is a festival mainly celebrated by the Santhal community. 2. Sangken is a Buddhist festival celebrated in Arunachal Pradesh. Which of the statements given above is/are correct ?
Erok Sim is a sowing festival of the Santhals, and Sangken is the Buddhist new-year water festival of Arunachal Pradesh.
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