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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

Q1744.Static GKAsked in: NDA · NDA-II 2019, GATMedium

CORAS is a separate Commando Unit of

  1. A.National Security Guard
  2. B.Central Industrial Security Force
  3. C.Railway Protection Force
  4. D.Central Reserve Police Force
Show answer
Correct answer: C. Railway Protection Force

CORAS, the Commando for Railway Security, is the special commando unit raised by the RPF of Indian Railways in 2019.

Q1746.General ScienceAsked in: NDA · NDA-II 2021, GATMedium

Spherical mirror formula relating an object distance 'u', image distance 'v' and focal length of mirror 'f' may be applied to a plane mirror when

  1. A.focal length goes to infinity.
  2. B.focal length goes to zero.
  3. C.image distance goes to zero.
  4. D.image distance goes to infinity.
Show answer
Correct answer: A. focal length goes to infinity.

A plane mirror is a spherical mirror of infinite radius of curvature, so its focal length f = R/2 is also infinite.

Q1749.General ScienceAsked in: NDA · NDA-I 2017, GATEasy

The valency of an element depends upon the

  1. A.total number of protons in an atom
  2. B.mass number of an atom
  3. C.total number of neutrons in an atom
  4. D.total number of electrons in the outermost shell of an atom
Show answer
Correct answer: D. total number of electrons in the outermost shell of an atom

Valency is the combining capacity of an atom, and it is decided by the valence electrons it gains, loses or shares to complete its outer shell.

Q1750.GeographyAsked in: NDA · NDA-II 2017, GATEasy

The Indian Railways have gone in for qualitative improvements since independence. Which of the following have taken place in recent years ?

1. Gauge conversion

2. Track electrification

3. Automatic signals

Select the correct answer using the codes given below :

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

Gauge conversion, electrification of tracks and automatic signalling have all been part of the modernisation of Indian Railways. Gauge conversion: under Project Unigauge, started in 1992, metre-gauge and narrow-gauge lines have been steadily converted to broad gauge (1,676 mm) so that trains can run through without transhipment.

Q1751.GeographyAsked in: NDA · NDA-I 2021, GATEasy

Which one of the following clouds is a rain-bearing cloud?

  1. A.Cumulus cloud
  2. B.Stratus cloud
  3. C.Nimbus cloud
  4. D.Cirrus cloud
Show answer
Correct answer: C. Nimbus cloud

The word nimbus means rain cloud: these dark, thick clouds bring steady rain or snow. Nimbus clouds form at low to middle heights and are so dense that sunlight hardly passes through them, which is why they look dark grey or black.

Q1757.Indian HistoryAsked in: CDS · CDS-II 2025, GKEasy

Which one of the following statements about the Tashkent Agreement is correct ?

  1. A.It was an agreement between India and the Soviet Union.
  2. B.It was an agreement between India and Pakistan.
  3. C.It was an agreement that led to the formation of Bangladesh.
  4. D.It was an agreement between India and Mongolia.
Show answer
Correct answer: B. It was an agreement between India and Pakistan.

The Tashkent Agreement was signed on 10 January 1966 by Prime Minister Lal Bahadur Shastri of India and President Ayub Khan of Pakistan to end the war of 1965.

Q1759.Art & CultureAsked in: CDS · CDS-I 2018, GKMedium

Which of the following National Parks of India are declared as World Heritage by UNESCO? 1. Keoladeo National Park 2. Sundarbans National Park 3. Kaziranga National Park 4. Ranthambore National Park Select the correct answer using the code given below.

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

Keoladeo, Sundarbans and Kaziranga national parks are UNESCO World Heritage Sites, while Ranthambore National Park is not one in its own right.

Q1760.General ScienceAsked in: CDS · CDS-II 2020, GKEasy

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

  1. A.It is an electromagnetic wave.
  2. B.It can travel through vacuum.
  3. C.It is a longitudinal wave.
  4. D.Its wavelength is shorter/smaller than that of visible light.
Show answer
Correct answer: C. It is a longitudinal wave.

Ultraviolet light is an electromagnetic wave, and all electromagnetic waves are transverse, not longitudinal. In an electromagnetic wave, the electric and magnetic fields vibrate at right angles to each other and to the direction in which the wave travels, which is the mark of a transverse wave.

GK Questions for sub-exams