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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

Q4901.Science & TechnologyMedium

Shri S. Krishnan, who delivered the keynote address at the Tech Conclave, holds which post?

  1. A.Director General, STPI
  2. B.Director, IIT (BHU)
  3. C.Secretary, Ministry of Electronics and Information Technology
  4. D.Chief Executive Officer, Uttar Pradesh Startup Mission
Show answer
Correct answer: C. Secretary, Ministry of Electronics and Information Technology

Shri S. Krishnan spoke in that capacity, holding that artificial intelligence can make health care easier to reach, strengthen clinical decision-making and improve the delivery of services, particularly for communities with little access to health facilities.

Q4902.Science & TechnologyEasy

Which organisation, working under MeitY, held the Tech Conclave on AI for Health and Assistive Technologies with CIIE, IIT (BHU)?

  1. A.National Informatics Centre
  2. B.Software Technology Parks of India
  3. C.Centre for Development of Advanced Computing
  4. D.Education and Research Network
Show answer
Correct answer: B. Software Technology Parks of India

It is a science and technology organisation under the Ministry of Electronics and Information Technology, and it held the conclave on AI for Health and Assistive Technologies jointly with the Centre for Innovation, Incubation and Entrepreneurship of IIT (BHU) on the institute's campus at Varanasi.

Q4903.InternationalMedium

Which of the following is NOT listed among the focus areas of the 25th SCO CHG meeting?

  1. A.Trade, economy and investment
  2. B.Connectivity and innovation
  3. C.Cultural and humanitarian exchanges
  4. D.Admission of new member states
Show answer
Correct answer: D. Admission of new member states

The fields set out for the 25th Meeting of the Council of Heads of Government are the strengthening of multilateral cooperation among the member countries in trade, the economy, investment, connectivity, innovation and cultural as well as humanitarian exchange; the delegations are also to review how ongoing cooperation programmes are…

Q4904.InternationalMedium

Who represents India at the 25th SCO Council of Heads of Government meeting in October 2026?

  1. A.The Prime Minister
  2. B.The External Affairs Minister
  3. C.The Defence Minister
  4. D.The Commerce and Industry Minister
Show answer
Correct answer: C. The Defence Minister

Rajnath Singh, who holds the defence portfolio, visits Dushanbe in Tajikistan to speak for India at the 25th Meeting of the Council of Heads of Government of the Shanghai Cooperation Organisation on 19 and 20 October 2026.

Q4905.InternationalEasy

Which city is hosting the 25th Meeting of the Council of Heads of Government of the Shanghai Cooperation Organisation?

  1. A.Tashkent
  2. B.Dushanbe
  3. C.Astana
  4. D.Bishkek
Show answer
Correct answer: B. Dushanbe

The Ministry of Defence has said that the 25th Meeting of the Council of Heads of Government of the Shanghai Cooperation Organisation takes place in Dushanbe, the capital of Tajikistan, on 19 and 20 October 2026, and that Defence Minister Rajnath Singh travels there to speak for India.

Q4906.General ScienceAsked in: CDS · CDS-II 2023, GKMedium

A charged particle moves through a magnetic field B with a velocity v. Which one of the following statements is true for the force (F) experienced by the particle?

  1. A.F is maximum when v and B are parallel to each other.
  2. B.F is maximum when v and B are anti-parallel to each other.
  3. C.F is maximum when v and B are perpendicular to each other.
  4. D.The force F is independent of the angle between v and B.
Show answer
Correct answer: C. F is maximum when v and B are perpendicular to each other.

The magnetic force depends on the sine of the angle between velocity and field, and sin 90° is the largest value.

Q4908.Computer AwarenessAsked in: CDS · CDS-I 2026, GKEasy

Which one of the following statements is not correct with regard to the UNIX operating system ?

  1. A.It is written in C.
  2. B.It is portable to a variety of computers.
  3. C.It is a multi-user operating system.
  4. D.It cannot be time-shared by several users.
Show answer
Correct answer: D. It cannot be time-shared by several users.

UNIX was designed from the start as a time-sharing system, so this statement is false. UNIX was developed at Bell Labs from 1969 by Ken Thompson and Dennis Ritchie.

Q4909.General ScienceAsked in: CDS · CDS-I 2017, GKEasy

Which one of the following is the most characteristic property of an element?

  1. A.Density
  2. B.Boiling point
  3. C.Mass number
  4. D.Atomic number
Show answer
Correct answer: D. Atomic number

The number of protons in the nucleus defines an element, and no two elements share it. The atomic number (Z) is the number of protons in an atom's nucleus, and in a neutral atom it also equals the number of electrons, which decide chemical behaviour.

Q4910.General ScienceAsked in: CDS · CDS-II 2017, GKHard

After using for some time, big transformers get heated up. This is due to the fact that

1. current produces heat in the transformers

2. hysteresis loss occurs in the transformers

3. liquid used for cooling gets heated

Select the correct answer using the code given below.

  1. A.1 only
  2. B.2 and 3 only
  3. C.1 and 2 only
  4. D.1, 2 and 3
Show answer
Correct answer: C. 1 and 2 only

A transformer heats up because of energy lost inside it: heat from current in the windings and hysteresis loss in the iron core.

Q4911.General ScienceAsked in: CDS · CDS-I 2018, GKEasy

Statement I : A person may suffer from tuberculosis if she/he frequently visits crowded place.

Statement II : Bacteria of tuberculosis spread through droplets by sneezing or coughing.

  1. A.Both the statements are individually true and Statement II is the correct explanation of Statement I
  2. B.Both the statements are individually true but Statement II is not the correct explanation of Statement I
  3. C.Statement I is true but Statement II is false
  4. D.Statement I is false but Statement II is true
Show answer
Correct answer: A. Both the statements are individually true and Statement II is the correct explanation of Statement I

Both statements are true, and the airborne spread of the TB bacterium is exactly why crowded places raise the risk.

Q4912.General ScienceAsked in: CDS · CDS-II 2018, GKMedium

Which one of the following denotes a 'true' fruit?

  1. A.When only the thalamus of the flower grows and develops into a fruit
  2. B.When only the receptacle of the flower develops into a fruit
  3. C.When fruit originates only from the calyx of a flower
  4. D.When only the ovary of the flower grows into a fruit
Show answer
Correct answer: D. When only the ovary of the flower grows into a fruit

A true fruit is a ripened ovary and nothing else. After fertilisation, the ovary of a flower develops into the fruit, its wall becomes the pericarp and the ovules inside become seeds.

Q4914.Science & TechnologyAsked in: CDS · CDS-II 2024, GKEasy

Mission Shakti (DRDO) of India is related to which one among the following ?

  1. A.Launch of multiple satellites using a single rocket
  2. B.Launch of heavy satellites
  3. C.Use of high power rockets in launching of satellites
  4. D.Use of rocket to destroy an orbiting satellite
Show answer
Correct answer: D. Use of rocket to destroy an orbiting satellite

Mission Shakti was India's first anti-satellite (ASAT) missile test. On 27 March 2019 DRDO fired a ground-launched interceptor from Dr. A.P.J.

Q4915.General ScienceAsked in: CDS · CDS-I 2025, GKMedium

A metallic sphere of mass 1 kg and volume 2 × 10⁻⁴ m³ is completely immersed in water. The buoyant force exerted by water on the sphere is : (Given : density of water = 1000 kg/m³, g = 10 m/s²)

  1. A.0.5 N
  2. B.1.5 N
  3. C.2 N
  4. D.2.5 N
Show answer
Correct answer: C. 2 N

By Archimedes' principle, the buoyant force equals the weight of the water displaced by the sphere. A fully immersed body displaces its own volume of water, here 2 × 10⁻⁴ m³.

Q4916.Computer AwarenessAsked in: CDS · CDS-I 2026, GKMedium

Which one of the following is not a characteristic of flash memory ?

  1. A.It is an ultraviolet erasable programmable ROM.
  2. B.It is an electrically erasable programmable ROM.
  3. C.It retains data without power.
  4. D.It is a non-volatile memory.
Show answer
Correct answer: A. It is an ultraviolet erasable programmable ROM.

Flash memory is erased electrically, not by ultraviolet light, so this is not one of its features. Flash memory is a type of EEPROM (electrically erasable programmable read-only memory) that can erase and rewrite whole blocks at a time, which makes it fast.

Q4917.Madhya PradeshAsked in: Delhi · 15 Oct 2018, Shift 3Easy

Who was the political Guru of Mahatma Gandhi?

  1. A.Gopal Krishna Gokhale
  2. B.Justice Ranade
  3. C.Dada Bhai Naroji
  4. D.Firoz Shah Mehta
Show answer
Correct answer: A. Gopal Krishna Gokhale

Gandhi called Gokhale his political guru, met him on returning from South Africa and, on his advice, spent a year travelling through India before taking up public work.

Q4919.Madhya PradeshAsked in: Delhi · 16 March 2022, shift 2Medium

Which of the following statement is correct? I. In 1801, a subsidiary treaty was imposed on Oudh. II. Bahadur Shah Zafar died in Rangoon Jail in November 1862.

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

Under the subsidiary treaty of 1801 the Nawab of Awadh surrendered about half his territory to the Company and agreed to keep a British force at his own cost, the step that reduced Awadh to dependence and led on to its annexation in 1856, one of the causes of the…

GK Questions for sub-exams