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RRB JE GK Questions 2026

Static GK makes up most of the General Awareness syllabus of RRB JE, and General Science adds a larger block of its own. CEN 04/2026 lists Indian geography, the culture and history of India including the freedom struggle, Indian Polity and Constitution, the Indian Economy and environmental issues concerning India and the world. In CBT-1 these share 15 questions with current affairs, while General Science, which the CEN defines as Physics, Chemistry and Life Sciences up to the 10th Standard CBSE syllabus, has 30 questions of its own. CBT-2 repeats the General Awareness syllabus in 15 questions and adds 15 on Physics and Chemistry, 10 on Basics of Computers and Applications and 10 on Basics of Environment and Pollution Control. This page holds GK24's topic-wise GK notes for RRB JE: Polity, History, Geography, the Economy, Art and Culture, Environment and Ecology, General Science and Computer basics. Each note is a set of short facts and tables in English and Hindi that can be revised in one sitting. Read one topic, solve its quiz and previous-year questions, and return to it a week later. With 15 General Awareness questions spread over eight areas, breadth matters more than depth, while General Science rewards thorough revision of Class 10 concepts.

RRB JE GK Questions with Answers

Q181.Science & TechnologyMedium

The 2019 Nobel Prize in Chemistry was awarded for the development of lithium-ion batteries to:

  1. A.John Goodenough, Stanley Whittingham and Akira Yoshino
  2. B.Alan Heeger, Alan MacDiarmid and Hideki Shirakawa
  3. C.Martin Karplus, Michael Levitt and Arieh Warshel
  4. D.Emmanuelle Charpentier and Jennifer Doudna
Show answer
Correct answer: A. John Goodenough, Stanley Whittingham and Akira Yoshino

Whittingham built the first working lithium cell in the 1970s, Goodenough found that a lithium cobalt oxide cathode could give a far higher voltage, and Yoshino replaced the dangerous metallic lithium anode with a carbon material, producing the safe, rechargeable cell that was commercialised in 1991.

Q182.Science & TechnologyEasy

In the context of electric mobility, BEV stands for:

  1. A.Basic Electric Vehicle
  2. B.Battery Electric Vehicle
  3. C.Bharat Electric Vehicle
  4. D.Bi-fuel Electric Vehicle
Show answer
Correct answer: B. Battery Electric Vehicle

A BEV carries no engine at all; it runs entirely on a traction battery that is charged from an external electricity supply, and it has no tailpipe emissions.

Q183.NationalMedium

The Sudha Gopalakrishnan Brain Centre being dedicated to the nation is located at which institution, and what atlas is being released there?

  1. A.IIT Madras; C-STROKE, a human ischaemic stroke atlas
  2. B.AIIMS New Delhi; a cardiac imaging atlas
  3. C.IISc Bengaluru; a genome atlas
  4. D.NIMHANS Bengaluru; a spinal injury atlas
Show answer
Correct answer: A. IIT Madras; C-STROKE, a human ischaemic stroke atlas

The Sudha Gopalakrishnan Brain Centre stands at IIT Madras and is being dedicated to the nation during the Chennai visit.

Q184.NationalEasy

Under which scheme have the five railway stations at Palani, Vellore Cantonment, Ambasamudram, Paramakkudi and Namakkal been redeveloped?

  1. A.Amrit Bharat Station Scheme
  2. B.Adarsh Station Scheme
  3. C.Setu Bharatam
  4. D.Bharatmala Pariyojana
Show answer
Correct answer: A. Amrit Bharat Station Scheme

The five stations named for inauguration in Tamil Nadu, at Palani, Vellore Cantonment, Ambasamudram, Paramakkudi and Namakkal, have been rebuilt under that scheme and are being opened as Amrit Stations, as part of railway works worth more than ₹750 crore that also include the Karaikal-Peralam line and three rail flyovers…

Q185.NationalMedium

The Poonamallee-Vadapalani corridor being opened in Chennai belongs to which project, and what is its special structural feature?

  1. A.Phase I of Chennai Metro, with an underground twin tunnel
  2. B.Phase II of Chennai Metro, with a double-decker structure of 3.7 km
  3. C.Chennai Suburban Rail, with an elevated cable-stayed span
  4. D.Phase III of Chennai Metro, with a floating station
Show answer
Correct answer: B. Phase II of Chennai Metro, with a double-decker structure of 3.7 km

The stretch from Poonamallee to Vadapalani is part of the second phase of the Chennai Metro Rail Project, it was built at a cost of about ₹4,900 crore, and its distinguishing feature is a double-decker structure running 3.7 km, along with advanced signalling meant to support driverless operations.

Q186.NationalEasy

What is the approximate total value of the development projects being inaugurated, dedicated and started at Chennai on 11 October 2026?

  1. A.Over ₹3,700 crore
  2. B.Over ₹8,500 crore
  3. C.Over ₹13,000 crore
  4. D.Over ₹21,000 crore
Show answer
Correct answer: C. Over ₹13,000 crore

The announcement states that the projects taken up together at Chennai in Tamil Nadu carry a combined value of more than ₹13,000 crore, and that they cover metro rail, national highways, railways, ports, petroleum and education.

Q192.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.

Q193.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.

Q195.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.

Q197.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.

Q198.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.

Q199.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…