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Railway GK Questions 2026

Static GK in railway exams starts with one shared block: Class 10 science. Every RRB exam on GK24 tests it. Group D has 25 questions on Physics, Chemistry and Life Sciences of 10th CBSE level. JE has 30 in CBT-1 and another 15 on Physics and Chemistry in CBT-2. ALP tests General Science in CBT-1 and Basic Science and Engineering in CBT-2, and NTPC lists general science up to 10th inside General Awareness. Beyond science, the lists differ. NTPC names history and the freedom struggle, geography, polity, the economy, art and culture, environment, computers, abbreviations, transport systems in India, world organisations and government bodies. JE names geography, history and culture, polity, the economy and environmental issues, and adds computers and pollution control in CBT-2. This page holds GK24's topic-wise GK notes for railway exams in English and Hindi: General Science, History, Geography, Polity, Economy, Art and Culture, Environment, Computers and static GK, including Indian Railways. Each note is short facts and tables that can be revised in one sitting. Begin with the science notes, since they serve every railway exam, then add the static topics your exam lists, and test each note with its quiz.

Railway GK Questions with Answers

Q8161.Static GKMedium

Which committee recommended the three-tier structure of panchayati raj in India?

  1. A.Ashok Mehta Committee
  2. B.Balwant Rai Mehta Committee
  3. C.L. M. Singhvi Committee
  4. D.G. V. K. Rao Committee
Show answer
Correct answer: B. Balwant Rai Mehta Committee

Appointed in 1957 to examine the working of the community development programme, it reported that development could not succeed without democratic decentralisation and recommended a three-tier structure: the gram panchayat at the village level, the panchayat samiti at the block level and the zila parishad at the district level, with…

Q8165.Science & TechnologyHard

A fifty-one per cent attack on a blockchain refers to a situation where an attacker

  1. A.Guesses the private keys of more than half the users
  2. B.Controls more than half the mining power or staked coins of the network
  3. C.Owns more than half the coins in circulation
  4. D.Shuts down more than half the nodes of the network
Show answer
Correct answer: B. Controls more than half the mining power or staked coins of the network

A fifty-one per cent attack is one in which a single party commands a majority of the resource that decides consensus, which is the mining power in a proof of work chain and the staked coins in a proof of stake chain.

Q8168.Science & TechnologyHard

The rate of tax deducted at source on payment made for the transfer of a virtual digital asset in India is

  1. A.One per cent
  2. B.Two per cent
  3. C.Five per cent
  4. D.Ten per cent
Show answer
Correct answer: A. One per cent

From July 2022 a person paying any consideration for the transfer of a virtual digital asset must deduct tax at source at one per cent of that consideration, a provision introduced by the Finance Act of 2022 so that the tax department can see the volume and the parties in…

Q8170.Science & TechnologyEasy

Blockchain is best described as a form of

  1. A.Centralised relational database
  2. B.Distributed ledger technology
  3. C.Cloud storage service
  4. D.Operating system
Show answer
Correct answer: B. Distributed ledger technology

A blockchain is a ledger whose identical copies are held by many nodes, with new entries grouped into blocks, each linked to the previous one by its hash, and added only when the network agrees by a consensus rule.

Q8171.Science & TechnologyHard

In a blockchain, the structure that summarises all the transactions in a block into a single hash is called

  1. A.The nonce
  2. B.The Merkle root
  3. C.The genesis block
  4. D.The private key
Show answer
Correct answer: B. The Merkle root

The transactions in a block are hashed in pairs, the resulting hashes are hashed in pairs again, and the process repeats until a single hash remains; that hash is the Merkle root, named after Ralph Merkle, and it is stored in the block header.

Q8174.Science & TechnologyEasy

What is the maximum number of bitcoins that can ever exist?

  1. A.One crore
  2. B.Twenty-one million
  3. C.One hundred million
  4. D.There is no upper limit
Show answer
Correct answer: B. Twenty-one million

The bitcoin protocol fixes the total supply at twenty-one million coins. New coins enter circulation only as the reward paid to whoever adds a block, and that reward is halved every two hundred and ten thousand blocks, which works out to roughly every four years, so issuance falls geometrically towards…

Q8176.Science & TechnologyEasy

The 2008 white paper that introduced bitcoin was published under which name?

  1. A.Vitalik Buterin
  2. B.Satoshi Nakamoto
  3. C.Nick Szabo
  4. D.Ralph Merkle
Show answer
Correct answer: B. Satoshi Nakamoto

The paper titled Bitcoin: A Peer-to-Peer Electronic Cash System was circulated in 2008 under the name Satoshi Nakamoto, a pseudonym whose owner has never been established, and it set out how a chain of hashed blocks and proof of work could prevent double spending without any trusted third party.

Q8177.Indian States & UTsHard

Which statement about a state Legislative Council is correct?

  1. A.It is dissolved along with the Legislative Assembly every five years
  2. B.It is a permanent house whose members serve six years, with one-third retiring every two years
  3. C.All its members are nominated by the Governor
  4. D.Its strength must be at least half that of the Legislative Assembly
Show answer
Correct answer: B. It is a permanent house whose members serve six years, with one-third retiring every two years

Like the Rajya Sabha, a Legislative Council is a continuing body: it is not subject to dissolution, each member holds office for six years, and one-third of the members retire every second year, so the house is renewed in stages.

Q8178.Indian States & UTsMedium

Under Article 170 of the Constitution, the Legislative Assembly of a state shall consist of not more than

  1. A.250 members
  2. B.400 members
  3. C.500 members
  4. D.550 members
Show answer
Correct answer: C. 500 members

Article 170 provides that the Legislative Assembly of a state shall consist of not more than five hundred and not fewer than sixty members chosen by direct election from territorial constituencies, with lower minimums permitted by law for small states such as Goa, Sikkim and Mizoram.

GK Questions for sub-exams