Skip to content
GK24
Prime

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

Q8481.GeographyHard

Which three railways of India are together inscribed as the UNESCO World Heritage site called the Mountain Railways of India?

  1. A.Darjeeling Himalayan, Nilgiri Mountain and Kalka to Shimla railways
  2. B.Darjeeling Himalayan, Matheran Hill and Kangra Valley railways
  3. C.Nilgiri Mountain, Matheran Hill and Kalka to Shimla railways
  4. D.Kangra Valley, Kalka to Shimla and Nilgiri Mountain railways
Show answer
Correct answer: A. Darjeeling Himalayan, Nilgiri Mountain and Kalka to Shimla railways

The Mountain Railways of India World Heritage site is made up of three lines added in stages: the Darjeeling Himalayan Railway in West Bengal, inscribed in 1999, the Nilgiri Mountain Railway in Tamil Nadu, added in 2005, and the Kalka to Shimla Railway in Himachal Pradesh, added in 2008.

Q8488.General ScienceHard

In a blast furnace, limestone is added along with haematite and coke mainly to

  1. A.reduce the iron oxide to iron
  2. B.act as a flux and remove silica as slag
  3. C.raise the temperature of the furnace
  4. D.increase the carbon content of the pig iron
Show answer
Correct answer: B. act as a flux and remove silica as slag

Limestone decomposes in the furnace to calcium oxide, a basic flux, which combines with the acidic silica gangue of the ore to form calcium silicate, a fusible slag that floats on the molten iron and is drawn off separately.

Q8489.General ScienceMedium

The Mond process is used for the refining of which metal?

  1. A.Nickel
  2. B.Titanium
  3. C.Copper
  4. D.Zinc
Show answer
Correct answer: A. Nickel

In the Mond process impure nickel is heated in a stream of carbon monoxide at a moderate temperature, forming the volatile compound nickel tetracarbonyl; the vapour is led away from the solid impurities and heated more strongly, whereupon it decomposes and deposits very pure nickel.

Q8491.General ScienceHard

In the extraction of aluminium by electrolysis, cryolite is added to alumina mainly to

  1. A.act as a reducing agent
  2. B.lower the melting point and increase the conductivity of the melt
  3. C.oxidise the carbon anode
  4. D.remove iron as slag
Show answer
Correct answer: B. lower the melting point and increase the conductivity of the melt

Pure alumina melts at a very high temperature, so in the Hall and Heroult process it is dissolved in molten cryolite, sodium hexafluoroaluminate, usually with some fluorspar, which lowers the working temperature of the bath and makes the melt a far better conductor of electricity.

Q8493.General ScienceMedium

Brass is an alloy of which two metals?

  1. A.Copper and tin
  2. B.Copper and zinc
  3. C.Copper and nickel
  4. D.Copper and aluminium
Show answer
Correct answer: B. Copper and zinc

Brass is made by alloying copper with zinc, which gives a metal harder than copper, easier to cast and machine, and resistant to ordinary corrosion, so it is used for utensils, taps and fittings and the bodies of musical instruments.

Q8494.General ScienceHard

Zone refining is used to obtain metals of very high purity and depends on which principle?

  1. A.The metal has a lower boiling point than its impurities
  2. B.Impurities are more soluble in the molten metal than in the solid metal
  3. C.The impurity forms a volatile carbonyl
  4. D.The impurity is oxidised and absorbed by a porous cupel
Show answer
Correct answer: B. Impurities are more soluble in the molten metal than in the solid metal

Zone refining rests on the fact that impurities are more soluble in a molten metal than in the same metal when solid.

Q8495.General ScienceMedium

Calcination differs from roasting in that calcination is carried out

  1. A.in a plentiful supply of air
  2. B.in the absence or a limited supply of air
  3. C.in the presence of a reducing agent
  4. D.above the melting point of the ore
Show answer
Correct answer: B. in the absence or a limited supply of air

Calcination is the heating of an ore in the absence or a limited supply of air and below its melting point, so that water of hydration and carbon dioxide are driven off; it is therefore the step used for carbonate ores such as calamine and for hydrated ores such as…

Q8497.General ScienceEasy

Galena is an ore of which metal?

  1. A.Zinc
  2. B.Lead
  3. C.Tin
  4. D.Mercury
Show answer
Correct answer: B. Lead

Galena is lead sulphide, with the formula PbS, and is the principal ore from which lead is extracted; being a sulphide, it is concentrated by froth flotation and then roasted to the oxide before reduction.

Q8499.Static GKMedium

PIN codes beginning with the digit 6 cover which group of states and union territories?

  1. A.Andhra Pradesh, Telangana and Karnataka
  2. B.Kerala, Tamil Nadu, Puducherry and Lakshadweep
  3. C.Bihar and Jharkhand
  4. D.Maharashtra, Madhya Pradesh, Chhattisgarh and Goa
Show answer
Correct answer: B. Kerala, Tamil Nadu, Puducherry and Lakshadweep

Zone 6 covers the far south of the peninsula together with the Lakshadweep islands, so PIN codes in Thiruvananthapuram and Chennai both begin with 6.