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RRB NTPC GK Questions 2026

Static General Knowledge makes up the rest of the General Awareness section in RRB NTPC, and the notices name its topics: General Science and Life Science up to Class 10, History of India and the freedom struggle, Physical, Social and Economic Geography of India and the world, Indian Polity and Governance, Indian Economy, Art and Culture, Indian Literature, Monuments and Places, Flora and Fauna, Famous Personalities, the UN and other world organisations, environmental issues, Transport Systems in India, Important Government and Public Sector Organisations, Common Abbreviations, and Basics of Computers and Computer Applications. RRB frames these as short factual questions: the unit of a physical quantity, the year of a battle, the article of the Constitution, the river a city stands on, the full form of an abbreviation, the headquarters of an organisation. GK24's GK notes on this page cover each topic in English and Hindi, arranged the way the syllabus lists them, with the facts RRB tends to ask placed first. Work through one topic at a time, note the lists (national parks, dances, articles, schedules, awards), and pair each topic with its quiz on GK24 to check what has stayed with you.

RRB NTPC GK Questions with Answers

Q6881.General ScienceAsked in: NDA · NDA-I 2021, GATEasy

The statement "friction force is a contact force while magnetic force is a non-contact force" is

  1. A.always true.
  2. B.true only at 0°C.
  3. C.a false statement.
  4. D.either true or false depending upon the temperature of the surroundings.
Show answer
Correct answer: A. always true.

Friction acts only where two surfaces touch, while a magnet can push or pull an object across a gap. Forces are grouped by whether the bodies must touch.

Q6887.Indian HistoryAsked in: NDA · NDA-I 2025, GATEasy

In British India, which one among the following Acts permitted detention without trial for up to two years?

  1. A.Regulating Act, 1773
  2. B.Rowlatt Act, 1919
  3. C.Pitt's India Act, 1784
  4. D.Government of India Act, 1935
Show answer
Correct answer: B. Rowlatt Act, 1919

This law let the government imprison people suspected of political activity without trial for up to two years. Officially the Anarchical and Revolutionary Crimes Act, it was passed in March 1919 on the advice of the Sedition Committee headed by Justice S.A.T.

Q6889.General ScienceAsked in: NDA · NDA-I 2026, GATMedium

For an object in gravitational field, the gravitational potential is the same at two points A and B, but the gravitational field is not the same at these two points. Which one of the following statements is correct?

  1. A.Positive work is done by gravity in moving the object from point A to point B.
  2. B.Negative work is done by gravity in moving the object from point A to point B.
  3. C.Gravity must be non-conservative in such a region.
  4. D.No work is done by gravity in moving the object from point A to point B.
Show answer
Correct answer: D. No work is done by gravity in moving the object from point A to point B.

Work done by gravity depends only on the difference in potential between the two points, and here that difference is zero.

Q6890.General ScienceAsked in: NDA · NDA-II 2026, GATHard

Consider the following : I. Gravitational field due to a spherical body II. Electrostatic field due to a point charge III. Strong nuclear force field due to a proton IV. Magnetic field due to a bar magnet How many of the above follow the inverse square law ?

  1. A.One
  2. B.Two
  3. C.Three
  4. D.All four
Show answer
Correct answer: B. Two

Only the gravitational field of a spherical body and the electrostatic field of a point charge fall off as 1/r².

Q6891.General ScienceAsked in: UPSC CAPF · CAPF 2021, Paper IEasy

Which one among the following is not a luminous object?

  1. A.Sun
  2. B.Proxima Centauri
  3. C.Jupiter
  4. D.Alpha Centauri
Show answer
Correct answer: C. Jupiter

Jupiter is a planet; it does not make its own light and shines only by reflecting sunlight. A luminous object produces light of its own, as stars do by nuclear fusion in their cores, where hydrogen is turned into helium.

Q6892.General ScienceAsked in: UPSC CAPF · CAPF 2023, Paper IEasy

Which organelle other than nucleus in eukaryotic cells has its own DNA, ribosomes and proteins ?

  1. A.Golgi
  2. B.Mitochondria
  3. C.Lysosomes
  4. D.Nucleosomes
Show answer
Correct answer: B. Mitochondria

Mitochondria carry their own circular DNA and their own ribosomes, so they can make some of their own proteins. Mitochondria are the sites of aerobic respiration, where ATP is produced, which is why they are called the powerhouse of the cell.

Q6893.General ScienceAsked in: UPSC CAPF · CAPF 2021, Paper IMedium

When calcium metal reacts with sulphuric acid, the reaction stops after a short while. Why?

  1. A.The reaction of calcium with sulphuric acid is not feasible at room temperature
  2. B.Formed calcium sulphate is insoluble in water and covers the calcium metal, preventing it from reacting any further
  3. C.Formed calcium sulphate requires two molecules of water to crystallize as gypsum
  4. D.Formed calcium sulphate is unstable
Show answer
Correct answer: B. Formed calcium sulphate is insoluble in water and covers the calcium metal, preventing it from reacting any further

The product forms a coating that shuts the acid out. Calcium reacts with dilute sulphuric acid to give calcium sulphate and hydrogen gas: Ca + H2SO4 gives CaSO4 + H2.

Q6894.General ScienceAsked in: UPSC CAPF · CAPF 2024, Paper IEasy

Which one among the following statements with respect to the atomic number of an atom is correct ?

  1. A.The number of neutrons is same as atomic number
  2. B.The sum of electrons and neutrons is same as atomic number
  3. C.The number of protons is same as atomic number
  4. D.The sum of protons and neutrons is same as atomic number
Show answer
Correct answer: C. The number of protons is same as atomic number

The atomic number (Z) is defined as the number of protons in the nucleus of an atom. Every atom of an element has the same number of protons, so the atomic number identifies the element: hydrogen has 1, carbon 6 and oxygen 8.

Q6895.General ScienceAsked in: CDS · CDS-I 2020, GKMedium

Which one of the following is not a property of the X-rays?

  1. A.They are deflected by electric fields.
  2. B.They are not deflected by magnetic fields.
  3. C.They have high penetration length in matter.
  4. D.Their wavelength is much smaller than that of visible light.
Show answer
Correct answer: A. They are deflected by electric fields.

X-rays are electromagnetic waves with no electric charge, so electric fields cannot deflect them. X-rays were discovered by Wilhelm Röntgen in 1895, who won the first Nobel Prize in Physics in 1901 for it.

Q6896.Environment & EcologyAsked in: CDS · CDS-II 2021, GKEasy

Which of the following limits the number of trophic levels in a food chain ?

  1. A.Deficient food supply
  2. B.Polluted air
  3. C.Decrease in the available energy at higher trophic levels
  4. D.Parasitic organisms
Show answer
Correct answer: C. Decrease in the available energy at higher trophic levels

Energy shrinks sharply at each step of a food chain, so after a few levels too little is left to support another level of consumers.

Q6897.General ScienceAsked in: CDS · CDS-I 2022, GKMedium

Which one of the following is not an example of an oxidation reaction ?

  1. A.The taste of butter changes if left for a longer period
  2. B.A white substance is formed when an aqueous solution of barium chloride is mixed with sodium sulphate solution
  3. C.A reddish-brown powder gets coated on articles made of iron
  4. D.Wine gets sour with time
Show answer
Correct answer: B. A white substance is formed when an aqueous solution of barium chloride is mixed with sodium sulphate solution

This is a double displacement (precipitation) reaction, in which no element gains oxygen or loses electrons. When the two solutions are mixed, the ions swap partners: BaCl2 + Na2SO4 → BaSO4 + 2NaCl.

Q6899.General ScienceAsked in: CDS · CDS-II 2023, GKMedium

During white-washing of walls, slaked lime reacts slowly with carbon dioxide in air to form a thin layer of calcium carbonate on the walls. Which of the following reactions represents this correctly?

  1. A.CaO (s) + CO2 (g) → CaCO3 (s)
  2. B.CaO (l) + CO2 (g) → CaCO3 (s)
  3. C.Ca(OH)2 (l) + CO2 (l) → CaCO3 (s) + H2O (l)
  4. D.Ca(OH)2 (aq) + CO2 (g) → CaCO3 (s) + H2O (l)
Show answer
Correct answer: D. Ca(OH)2 (aq) + CO2 (g) → CaCO3 (s) + H2O (l)

Slaked lime is calcium hydroxide applied as a watery solution, and it takes up carbon dioxide gas from the air to form solid calcium carbonate and water.