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SSC CHSL GK Questions 2026

Static GK decides the General Awareness score in SSC CHSL. Of the 25 questions in Tier-I and the 20 in Tier-II, most come from Indian Polity, History, Geography, the Economy and General Science, the areas the CHSL 2026 notice lists as History, Culture, Geography, Economic Scene, General Policy and Scientific Research relating to India and its neighbouring countries. The level is that of Class 12, so the questions are direct: which article, which river, which ruler, which year. Polity asks about parts and schedules of the Constitution, fundamental rights, the President, Parliament, the Supreme Court and constitutional bodies. History covers the Indus Valley, the Mauryas and Guptas, the Sultanate and Mughal periods, and the freedom struggle from 1857 to 1947. Geography asks about rivers, soils, climate, national parks, minerals and world physical features. The Economy part asks about budget terms, the RBI, banking and basic concepts. General Science is school-level Physics, Chemistry and Biology with everyday applications, and Culture covers dances, festivals, monuments and books. This page holds GK24's topic-wise GK notes for SSC CHSL, written as short facts and tables so 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 you retained.

SSC CHSL GK Questions with Answers

Q6401.GeographyMedium

Which article of the Constitution empowers Parliament to provide for the adjudication of inter-state river water disputes?

  1. A.Article 252
  2. B.Article 262
  3. C.Article 263
  4. D.Article 280
Show answer
Correct answer: B. Article 262

Article 262 allows Parliament to make a law for the adjudication of any dispute about the use, distribution or control of the waters of an inter-state river or river valley, and to bar the Supreme Court and all other courts from such disputes.

Q6402.GeographyMedium

The Damodar Valley Corporation, India's first multipurpose river valley project, was modelled on which authority?

  1. A.Tennessee Valley Authority of the United States
  2. B.Rhine Commission of Europe
  3. C.Volga Authority of the Soviet Union
  4. D.Yangtze Commission of China
Show answer
Correct answer: A. Tennessee Valley Authority of the United States

The Damodar Valley Corporation was created by an Act of 1948 as an autonomous body for an entire river basin, with flood control, irrigation, power and navigation under one management, exactly on the pattern of the Tennessee Valley Authority set up in America in 1933.

Q6407.General ScienceMedium

Which was the first nuclear power station to be set up in India?

  1. A.Tarapur, Maharashtra
  2. B.Kalpakkam, Tamil Nadu
  3. C.Rawatbhata, Rajasthan
  4. D.Narora, Uttar Pradesh
Show answer
Correct answer: A. Tarapur, Maharashtra

The Tarapur Atomic Power Station was the first nuclear power station in India and also the first in Asia, built with American collaboration and using boiling water reactors, unlike the pressurised heavy water reactors of the later Indian stations.

Q6409.General ScienceEasy

The energy radiated by the Sun is produced mainly by which process?

  1. A.Nuclear fission of uranium
  2. B.Nuclear fusion of hydrogen nuclei
  3. C.Chemical combustion of hydrogen
  4. D.Radioactive decay of heavy elements
Show answer
Correct answer: B. Nuclear fusion of hydrogen nuclei

In the core of the Sun, at temperatures of millions of degrees, hydrogen nuclei fuse in stages to form helium, and the small amount of mass lost in the process appears as energy according to Einstein's mass-energy relation.

Q6410.General ScienceMedium

Control rods used to regulate the rate of a nuclear chain reaction are commonly made of which materials?

  1. A.Graphite and heavy water
  2. B.Cadmium and boron
  3. C.Lead and concrete
  4. D.Uranium and plutonium
Show answer
Correct answer: B. Cadmium and boron

Both absorb neutrons strongly, so pushing the rods into the core removes neutrons and slows the chain reaction, while withdrawing them allows the reaction to build up; this is how the power of a reactor is controlled and how it is shut down.

Q6411.General ScienceMedium

In a nuclear reactor, heavy water is used mainly for which purpose?

  1. A.As a moderator
  2. B.As a fuel
  3. C.As a control rod
  4. D.As shielding
Show answer
Correct answer: A. As a moderator

Heavy water, in which the hydrogen of ordinary water is replaced by deuterium, slows the fast neutrons released in fission to low speeds at which they are far more likely to split further uranium nuclei, and it absorbs very few neutrons in doing so, which is why Indian pressurised heavy…

Q6413.General ScienceMedium

When a nucleus emits an alpha particle, how do its mass number and atomic number change?

  1. A.Mass number falls by 2 and atomic number by 1
  2. B.Mass number falls by 4 and atomic number by 2
  3. C.Mass number is unchanged and atomic number rises by 1
  4. D.Both remain unchanged
Show answer
Correct answer: B. Mass number falls by 4 and atomic number by 2

An alpha particle takes away two protons and two neutrons, so the parent loses four units of mass number and two units of atomic number and becomes an element two places earlier in the periodic table; uranium-238, for instance, becomes thorium-234.

Q6415.General ScienceEasy

Radioactivity was discovered by which scientist?

  1. A.Henri Becquerel
  2. B.Marie Curie
  3. C.Ernest Rutherford
  4. D.Wilhelm Roentgen
Show answer
Correct answer: A. Henri Becquerel

In 1896 Becquerel found that a uranium salt kept in the dark fogged a wrapped photographic plate, which showed that the salt emitted its own penetrating radiation without being exposed to light.

Q6416.General ScienceAsked in: Bihar · BPSC AE Paper 3, 2019Medium

A hydrogen bomb creates devastating explosion because of

  1. A.nuclear fission and nuclear fusion
  2. B.nuclear fission
  3. C.the use of the cryogenic hydrogen
  4. D.the use of ultra pressed hydrogen
Show answer
Correct answer: A. nuclear fission and nuclear fusion

A hydrogen bomb, also called a thermonuclear bomb, works in two steps. A fission explosion of uranium or plutonium produces the temperature of millions of degrees needed to force light nuclei together, and the fusion of those nuclei then releases far more energy than the fission stage alone.

Q6418.Science & TechnologyMedium

Who is the Union Minister for Communications who took part in the interaction with the GSMA Board?

  1. A.Jyotiraditya Scindia
  2. B.Ashwini Vaishnaw
  3. C.Piyush Goyal
  4. D.Dharmendra Pradhan
Show answer
Correct answer: A. Jyotiraditya Scindia

He has been leading India engagement with the global telecom ecosystem on next-generation connectivity, and at Mobile World Congress in Barcelona he addressed the GSMA Ministerial Programme on making connectivity more affordable, inclusive and future-ready.