Skip to content
GK24

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

Q2662.General ScienceAsked in: NDA · NDA-I 2023, GATEasy

Which one of the following is the correct arrangement of metals in the decreasing order of their reactivity?

  1. A.Iron, Sodium, Silver, Copper
  2. B.Silver, Copper, Iron, Sodium
  3. C.Sodium, Copper, Silver, Iron
  4. D.Sodium, Iron, Copper, Silver
Show answer
Correct answer: D. Sodium, Iron, Copper, Silver

This matches the reactivity series, which lists metals from the most to the least reactive. Sodium is near the top: it reacts violently with cold water and is stored under kerosene.

Q2663.General ScienceAsked in: NDA · NDA-II 2025, GATEasy

Which one of the following salts is responsible for temporary hardness of water?

  1. A.Sulphates of calcium
  2. B.Chlorides of magnesium
  3. C.Bicarbonates of magnesium
  4. D.Sulphates of magnesium
Show answer
Correct answer: C. Bicarbonates of magnesium

Temporary hardness is caused by the bicarbonates (hydrogencarbonates) of calcium and magnesium dissolved in water. It is called temporary because it can be removed simply by boiling: on heating, the soluble bicarbonates break down into insoluble carbonates, or magnesium hydroxide, which settle out, and carbon dioxide escapes.

Q2664.General ScienceAsked in: NDA · NDA-I 2019, GATMedium

Which one of the following will NOT produce carbon dioxide on reacting with an aqueous solution of hydrochloric acid?

  1. A.Limestone
  2. B.Quick Lime
  3. C.Chalk
  4. D.Marble
Show answer
Correct answer: B. Quick Lime

Quick lime is calcium oxide (CaO), which contains no carbonate, so it gives no carbon dioxide with an acid. Acids release carbon dioxide only from carbonates and hydrogencarbonates: the general reaction is metal carbonate plus acid gives salt, water and carbon dioxide.

Q2665.General ScienceAsked in: NDA · NDA-I 2021, GATMedium

Common salt (NaCl) is not used as a raw material for preparation of which one of the following compounds?

  1. A.Bleaching powder
  2. B.Baking soda
  3. C.Plaster of Paris
  4. D.Washing soda
Show answer
Correct answer: C. Plaster of Paris

Plaster of Paris is made from gypsum, not from common salt. When gypsum, calcium sulphate dihydrate (CaSO4·2H2O), is heated to about 373 K, it loses part of its water and becomes calcium sulphate hemihydrate (CaSO4·½H2O), which is Plaster of Paris; it sets hard again when mixed with water and is…

Q2668.General ScienceAsked in: NDA · NDA-I 2023, GATMedium

What is the specific purpose of using potassium hydroxide during the saponification process?

  1. A.To obtain soaps which are hard on the skin
  2. B.To obtain soaps which are soft on the skin
  3. C.To obtain natural fragrance
  4. D.To make the saponification very economical
Show answer
Correct answer: B. To obtain soaps which are soft on the skin

Potassium hydroxide gives potassium soaps, which are softer and milder than sodium soaps. Saponification is the reaction in which an oil or fat is heated with an alkali to give soap, the sodium or potassium salt of a long-chain fatty acid, and glycerol.

Q2671.Indian PolityAsked in: NDA · NDA-I 2022, GATMedium

Who among the following had the shortest span in office as the Prime Minister of India?

  1. A.Lal Bahadur Shastri
  2. B.Chaudhary Charan Singh
  3. C.Chandra Shekhar
  4. D.H. D. Deve Gowda
Show answer
Correct answer: B. Chaudhary Charan Singh

Among the four, Charan Singh held office for the shortest time, about 170 days. He became Prime Minister on 28 July 1979 after the Janata government of Morarji Desai fell, but resigned on 20 August 1979 without ever facing Parliament, when the Congress withdrew its support.

Q2675.InternationalMedium

Mr Levin Holle, whom the Commerce Minister met at the German Federal Chancellery, holds which position?

  1. A.Federal Minister for Economic Affairs of Germany
  2. B.Economic and Financial Policy Advisor and G7/G20 Sherpa
  3. C.President of the German Federal Bank
  4. D.Germany’s Ambassador to India
Show answer
Correct answer: B. Economic and Financial Policy Advisor and G7/G20 Sherpa

Mr Levin Holle holds that position at the German Federal Chancellery, where the bilateral meeting took place, and the discussion covered economic cooperation and the strengthening of economic and investment ties between India and Germany.

Q2677.NationalHard

The women-led initiative Pink Patrol: Eyes in the Sky, SHAKTI on the Ground was showcased by which zone of Indian Railways?

  1. A.Northern Railway
  2. B.South Central Railway
  3. C.Central Railway
  4. D.Western Railway
Show answer
Correct answer: B. South Central Railway

Its Pink Patrol initiative, with the tagline Eyes in the Sky, SHAKTI on the Ground, is a women-led model that combines drone-assisted surveillance with rapid-response teams working under the SHAKTI framework.