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Defence GK Questions 2026

Static GK carries most of the General Knowledge marks in the defence exams, and science carries the largest share of it. In NDA & NA, Physics, Chemistry and General Science are about half of the 400 marks of Part B, and History, the freedom movement and Geography are about 20% each, as per the notice. In the CDS (II) 2026 General Knowledge paper, GK24 counted about 37 science questions, about 20 each on Polity and History, about 15 on Geography and environment and about 10 on the Economy; this count is guidance, not an official break-up. The Army's Agniveer CEE gives 15 of its 50 General Duty questions to General Knowledge and 15 to General Science, which covers cells, the human body, plants and animals and common epidemics. Its GK list names history, culture and geography of India and its neighbours, the Constitution, inventions and discoveries, books and authors, and the Indian Armed Forces. This page holds GK24's topic-wise GK notes and GK questions tagged for NDA, CDS and Agniveer, in English and Hindi: General Science, Indian History, Art and Culture, Indian Polity, Geography, Indian Economy and Static GK. Read one topic at a sitting, then solve its questions and the previous-year questions of your exam to see what stayed with you.

Defence GK Questions with Answers

Q5904.Awards & HonoursEasy

After independence, which Indian award took the place of the Victoria Cross?

  1. A.Param Vir Chakra
  2. B.Ashoka Chakra
  3. C.Maha Vir Chakra
  4. D.Bharat Ratna
Show answer
Correct answer: A. Param Vir Chakra

The Param Vir Chakra, instituted on 26 January 1950 with effect from 15 August 1947, is India's highest award for gallantry in the face of the enemy and so takes the place the Victoria Cross held before independence; it was designed by Savitri Khanolkar and its first recipient was Major…

Q5905.Awards & HonoursMedium

The Order of the Indian Empire was instituted in 1878, following which event?

  1. A.Queen Victoria's assumption of the title Empress of India
  2. B.The Revolt of 1857
  3. C.The Delhi Durbar of 1911
  4. D.The Partition of Bengal
Show answer
Correct answer: A. Queen Victoria's assumption of the title Empress of India

Queen Victoria was proclaimed Empress of India at the Delhi Durbar of 1877, and the Order of the Indian Empire was created the following year to honour a wider and more junior group of officials than the Star of India covered; its motto, Imperatricis auspiciis, means under the auspices of…

Q5906.Awards & HonoursHard

Which was the oldest gallantry decoration available to Indian soldiers, instituted by the East India Company in 1837?

  1. A.Victoria Cross
  2. B.Indian Distinguished Service Medal
  3. C.Order of the Indian Empire
  4. D.Indian Order of Merit
Show answer
Correct answer: D. Indian Order of Merit

Instituted by the East India Company in 1837, the Indian Order of Merit was the oldest gallantry decoration in India and, until 1911, the only such award open to Indian soldiers, who could not then receive the Victoria Cross.

Q5908.Awards & HonoursMedium

Who was the first Indian to be awarded the Victoria Cross?

  1. A.Darwan Singh Negi
  2. B.Gobind Singh
  3. C.Shahamad Khan
  4. D.Khudadad Khan
Show answer
Correct answer: D. Khudadad Khan

A sepoy of the 129th Baluchis, Khudadad Khan won the Victoria Cross for holding his machine gun position in Belgium in October 1914, becoming the first Indian to receive the decoration after Indian soldiers were made eligible for it in 1911.

Q5910.Awards & HonoursEasy

Mahatma Gandhi returned the Kaiser-i-Hind Medal in 1920 at the start of which movement?

  1. A.Civil Disobedience Movement
  2. B.Non-Cooperation Movement
  3. C.Quit India Movement
  4. D.Home Rule Movement
Show answer
Correct answer: B. Non-Cooperation Movement

Gandhi had been awarded the Kaiser-i-Hind in 1915 for raising an ambulance corps in South Africa, and in 1920 he returned it in a letter to the Viceroy, giving up two South African war medals at the same time, as part of the surrender of titles and honours that the…

Q5914.General ScienceHard

Destructive distillation of coal yields coke along with which of the following?

  1. A.Coal tar and coal gas
  2. B.Petrol and diesel
  3. C.Producer gas and biogas
  4. D.Bitumen and paraffin wax
Show answer
Correct answer: A. Coal tar and coal gas

Destructive distillation means heating coal strongly in the absence of air, so that it decomposes instead of burning. The solid left behind is coke, which is almost pure carbon and is used as a reducing agent in the extraction of iron and other metals and as a smokeless fuel.

Q5916.General ScienceEasy

The lowest temperature at which a substance catches fire is called its

  1. A.boiling point
  2. B.flash point
  3. C.ignition temperature
  4. D.calorific value
Show answer
Correct answer: C. ignition temperature

It is the lowest temperature to which a combustible substance must be heated before it begins to burn, and it is a fixed property of that substance; substances with a very low ignition temperature, such as petrol, alcohol and liquefied petroleum gas, are called inflammable substances and are stored with…

Q5917.General ScienceMedium

Carbon dioxide is considered an excellent fire extinguisher for electrical fires because

  1. A.it is lighter than air and rises above the fire
  2. B.it reacts with the fuel to form a non-combustible solid
  3. C.it is heavier than air, covers the fire and cuts off the oxygen supply
  4. D.it raises the ignition temperature of the burning material
Show answer
Correct answer: C. it is heavier than air, covers the fire and cuts off the oxygen supply

Carbon dioxide is about one and a half times as dense as air, so when released it forms a blanket over the burning material and separates it from atmospheric oxygen, removing one side of the fire triangle.

Q5918.General ScienceMedium

Water is not used to extinguish a fire caused by burning petrol or kerosene mainly because

  1. A.water increases the ignition temperature of oil
  2. B.oil floats on water and the fire spreads further
  3. C.water reacts chemically with oil to release hydrogen
  4. D.water cannot absorb any heat from burning oil
Show answer
Correct answer: B. oil floats on water and the fire spreads further

Petrol and kerosene are lighter than water and do not mix with it, so water poured on an oil fire sinks below the burning layer and carries it outwards, enlarging the fire instead of putting it out.

Q5920.General ScienceEasy

Liquefied petroleum gas (LPG) used as domestic cooking fuel consists mainly of which gases?

  1. A.Methane and ethane
  2. B.Butane and propane
  3. C.Carbon monoxide and hydrogen
  4. D.Ethylene and acetylene
Show answer
Correct answer: B. Butane and propane

Liquefied petroleum gas is obtained during the refining of petroleum and from natural gas processing, and it is chiefly a mixture of butane and propane, which liquefy under moderate pressure at ordinary temperature and so can be stored in a cylinder.

GK Questions for sub-exams