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RRB Group D GK Questions 2026

Static GK is not a separate section in RRB Group D, but it decides most of the paper's recall marks. General Science is 25 questions of Physics, Chemistry and Life Sciences at 10th standard (CBSE) level as per CEN 09/2025, and the 20 General Awareness questions lean on the standing facts behind the news: the sport, the award, the institution, the state, the river or the scientist an event touches. This page holds GK24's topic-wise GK notes for RRB Group D. The General Science notes go topic by topic through motion and force, work, energy and power, gravitation, heat, light, sound, electricity and magnetism, atomic structure and the periodic table, chemical reactions, acids, bases and salts, metals and non-metals, and carbon compounds, and the Life Sciences notes cover cells, the human body, nutrition, diseases, plants and genetics. The static GK notes cover Indian Railways zones and facts, national symbols, first and largest in India and the world, awards and honours, important days, books and authors, sports GK, art and culture, and the basics of Indian Polity, Geography, History and the Economy. Each note is short facts and tables that can be revised in one sitting. Read a note, then solve its quiz and the previous-year questions on this site to check what stayed.

RRB Group D GK Questions with Answers

Q2301.General ScienceAsked in: CDS · CDS-II 2023, GKEasy

If the Moon is brought closer to the Earth such that its distance from the Earth becomes half of the original distance, then the gravitational force of attraction between the Earth and the Moon would :

  1. A.reduce to half of its original value.
  2. B.increase to two times of its original value.
  3. C.remain the same as the original value.
  4. D.increase to four times of its original value.
Show answer
Correct answer: D. increase to four times of its original value.

Gravitational force varies inversely as the square of the distance, so halving the distance makes the force 2 × 2 = 4 times larger.

Q2304.General ScienceAsked in: UPSC CAPF · CAPF 2019, Paper IEasy

Which one of the following statements is correct ?

  1. A.Bacteria contain cytoplasm but viruses do not
  2. B.Bacteria contain mitochondria but viruses do not
  3. C.Viruses contain mitochondria but bacteria do not
  4. D.Viruses have a cell membrane but bacteria do not
Show answer
Correct answer: A. Bacteria contain cytoplasm but viruses do not

A bacterium is a living cell filled with cytoplasm, while a virus is only genetic material inside a protein coat.

Q2306.General ScienceAsked in: UPSC CAPF · CAPF 2018, Paper IEasy

Lowering the atmospheric pressure on a liquid

  1. A.increases the boiling point of the liquid
  2. B.lowers the boiling point of the liquid
  3. C.does not affect the boiling point of the liquid
  4. D.increases the time required for it to boil
Show answer
Correct answer: B. lowers the boiling point of the liquid

A liquid boils when its vapour pressure equals the pressure above it, so less outside pressure means boiling starts at a lower temperature.

Q2307.General ScienceAsked in: UPSC CAPF · CAPF 2020, Paper IEasy

Magnesium is used in

  1. A.fireworks to make a bright white light
  2. B.gemstones in jewellery
  3. C.examination of alimentary canal of the patient
  4. D.purification of water
Show answer
Correct answer: A. fireworks to make a bright white light

Magnesium burns in air with a dazzling white flame, which is why it goes into fireworks, sparklers and flares. When magnesium ribbon is heated it reacts with oxygen to form white magnesium oxide (2Mg + O2 → 2MgO), giving out intense heat and brilliant white light, including ultraviolet.

Q2308.General ScienceAsked in: UPSC CAPF · CAPF 2021, Paper IEasy

Which one of the following statements with regard to a short-sighted person is correct?

  1. A.A short-sighted person sees the near objects blurred but distant objects clearly and a convex lens is used to correct this defect.
  2. B.A short-sighted person sees the near objects clearly but distant objects blurred and a concave lens is used to correct this defect.
  3. C.A short-sighted person sees the near objects blurred but distant objects clearly and a concave lens is used to correct this defect.
  4. D.A short-sighted person sees the near objects clearly but distant objects blurred and a convex lens is used to correct this defect.
Show answer
Correct answer: B. A short-sighted person sees the near objects clearly but distant objects blurred and a concave lens is used to correct this defect.

A short-sighted (myopic) person sees near things clearly but distant things blurred, and a concave lens corrects it.

Q2309.General ScienceAsked in: UPSC CAPF · CAPF 2020, Paper IMedium

Which one of the following statements with regard to Newton's third law of motion is NOT correct ?

  1. A.Force never occurs singly in nature
  2. B.When the earth pulls a stone downwards due to gravity, the stone exerts a force on the earth
  3. C.There is a cause-effect relation implied in the third law
  4. D.There is no cause-effect relation implied in the third law
Show answer
Correct answer: C. There is a cause-effect relation implied in the third law

The third law does not make one force the cause and the other the effect; action and reaction arise together, at the same instant.

Q2311.General ScienceAsked in: UPSC Civil Services · CSE Prelims 2018, GS Paper IEasy

Which of the following leaf modifications occur(s) in the desert areas to inhibit water loss?

1. Hard and waxy leaves

2. Tiny leaves

3. Thorns instead of leaves

Select the correct answer using the code given below :

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

All three are adaptations of desert plants (xerophytes) that cut down water loss through transpiration. Plants lose most of their water through the leaves, so desert plants change their leaves to save it.

Q2312.Important DaysMedium

In the tribute to Loknayak Jayaprakash Narayan, his fearless voice was especially recalled from which period?

  1. A.The Quit India Movement
  2. B.The Emergency
  3. C.The Bengal Partition
  4. D.The Non-Cooperation Movement
Show answer
Correct answer: B. The Emergency

The Prime Minister noted that the fearless voice of Loknayak Jayaprakash Narayan during the Emergency was itself noteworthy, placing it alongside his concern for good governance and for reaching people at the margins of society.

Q2313.Important DaysMedium

Whose birth anniversary, also falling on 11 October, was marked with a tribute recalling his work for rural development and community participation?

  1. A.Vinoba Bhave
  2. B.Nanaji Deshmukh
  3. C.Jagjivan Ram
  4. D.Kamaraj
Show answer
Correct answer: B. Nanaji Deshmukh

The Prime Minister paid homage to him on his birth anniversary, which falls on the same date as that of Loknayak Jayaprakash Narayan, and described him as an outstanding nation-builder who showed in thought and in action that genuine change starts at the grassroots.

Q2316.NationalMedium

According to the Prime Minister, metro rail services are operated in how many cities of India today, compared with five cities in 2014?

  1. A.15
  2. B.20
  3. C.25
  4. D.30
Show answer
Correct answer: C. 25

The Prime Minister said that in 2014 metro trains ran in only five cities of the country, whereas metro services are today operated in twenty-five cities, and that the network itself has grown from roughly two hundred fifty kilometres in that year to more than one thousand one hundred kilometres…

Q2317.NationalMedium

Which port is being developed as a world-class mega container and green energy hub, as announced in the Prime Minister address at Chennai?

  1. A.Ennore Port
  2. B.Karaikal Port
  3. C.VOC Port, Thoothukudi
  4. D.Chennai Port
Show answer
Correct answer: C. VOC Port, Thoothukudi

The Prime Minister said the Union Government has recently decided to build this port into a world-class mega container and green energy hub with an investment of about seventeen thousand crore rupees, and that once the work is finished even ultra-large container vessels will be able to reach it, helping…

Q2318.NationalEasy

In which city did the Prime Minister dedicate a new metro stretch and launch development projects on 11 October 2026?

  1. A.Coimbatore
  2. B.Chennai
  3. C.Madurai
  4. D.Tiruchirappalli
Show answer
Correct answer: B. Chennai

The Prime Minister addressed a public function in Chennai, where completed works were opened and foundation stones laid for new ones, the whole set valued at thirteen thousand crore rupees, and where a further stretch of the Chennai Metro was dedicated to the public.