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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

Q1861.Indian PolityMedium

Who was sworn in as the Chief Justice of India on 24 November 2025?

  1. A.Justice Bhushan Ramkrishna Gavai
  2. B.Justice Sanjiv Khanna
  3. C.Justice Surya Kant
  4. D.Justice Vikram Nath
Show answer
Correct answer: C. Justice Surya Kant

According to the Supreme Court of India, Justice Surya Kant was elevated as a judge of the Supreme Court on 24 May 2019 and was sworn in as the fifty-third Chief Justice of India on 24 November 2025, with retirement due on 9 February 2027.

Q1862.Indian PolityMedium

Which pair of Chief Justices of India were father and son?

  1. A.H. J. Kania and M. H. Kania
  2. B.Y. V. Chandrachud and D. Y. Chandrachud
  3. C.H. R. Khanna and Sanjiv Khanna
  4. D.S. R. Das and B. K. Mukherjea
Show answer
Correct answer: B. Y. V. Chandrachud and D. Y. Chandrachud

Justice Y. V. Chandrachud was Chief Justice of India from 1978 to 1985 and his son, Justice D. Y. Chandrachud, became the fiftieth Chief Justice of India in November 2022, the only instance of a father and a son both holding the office.

Q1863.Indian PolityHard

Article 126 of the Constitution of India deals with which of the following?

  1. A.Appointment of ad hoc judges
  2. B.Appointment of an acting Chief Justice of India
  3. C.Sitting of retired judges in the Supreme Court
  4. D.Transfer of judges between High Courts
Show answer
Correct answer: B. Appointment of an acting Chief Justice of India

Article 126 provides that when the office of Chief Justice of India is vacant, or when the Chief Justice is by reason of absence or otherwise unable to perform the duties of the office, the duties shall be performed by such one of the other judges of the Court as…

Q1865.Indian PolityMedium

Under the Constitution, the oath of office to the President of India is administered by whom?

  1. A.The Speaker of the Lok Sabha
  2. B.The Vice-President of India
  3. C.The Chief Justice of India
  4. D.The Prime Minister of India
Show answer
Correct answer: C. The Chief Justice of India

Article 60 lays down the form of oath for the President and provides that it is made in the presence of the Chief Justice of India, or in his absence the senior-most judge of the Supreme Court available.

Q1867.Indian PolityMedium

Who had the longest tenure as Chief Justice of India?

  1. A.Y. V. Chandrachud
  2. B.D. Y. Chandrachud
  3. C.A. N. Ray
  4. D.S. R. Das
Show answer
Correct answer: A. Y. V. Chandrachud

Justice Yeshwant Vishnu Chandrachud was Chief Justice of India from 22 February 1978 to 11 July 1985, a tenure of about seven years and four months, by far the longest any holder of the office has had.

Q1869.Indian PolityEasy

The appointment of the Chief Justice of India and the other judges of the Supreme Court is provided for in which Article of the Constitution?

  1. A.Article 124
  2. B.Article 126
  3. C.Article 127
  4. D.Article 131
Show answer
Correct answer: A. Article 124

Article 124 establishes the Supreme Court of India and lays down that every judge of the Court, including the Chief Justice of India, is appointed by the President by warrant under his hand and seal; Article 124(2) fixes the retirement age at sixty-five years and Article 124(4) prescribes the procedure…

Q1871.GeographyHard

Physiological density is the number of persons per unit of

  1. A.Total land area
  2. B.Arable land
  3. C.Built-up land
  4. D.Forest land
Show answer
Correct answer: B. Arable land

Physiological density divides the total population of a region by the area of its cultivable or arable land, so it measures the pressure of all the people on the land that can actually grow food, and it is far higher than ordinary density in countries such as Egypt, where most…

Q1872.GeographyMedium

Which of the following is a push factor of migration?

  1. A.Better medical care in the destination
  2. B.Unemployment in the place of origin
  3. C.Higher wages in the destination
  4. D.Attractive climate of the destination
Show answer
Correct answer: B. Unemployment in the place of origin

Push factors are the unfavourable conditions of the place a person leaves, such as unemployment, poverty, crop failure, drought, flood, epidemic and political unrest; they push people out.

Q1873.GeographyEasy

The natural growth of population in a given period is obtained by

  1. A.Adding births and deaths
  2. B.Subtracting deaths from births
  3. C.Adding in-migration to births
  4. D.Subtracting out-migration from in-migration
Show answer
Correct answer: B. Subtracting deaths from births

Natural growth is the increase that comes from the balance of births over deaths alone, so it is births minus deaths in the period, and it is negative when deaths exceed births.

Q1875.GeographyMedium

A population pyramid with a very broad base and a narrow top indicates

  1. A.A declining population
  2. B.A high birth rate and a young population
  3. C.An equal number of men and women
  4. D.A high dependency of old people
Show answer
Correct answer: B. A high birth rate and a young population

The width of each bar in a population pyramid shows the share of that age group, so a broad base means that children form a very large part of the population, which happens where the birth rate is high; the narrow top shows that few people survive to old age.

Q1876.GeographyMedium

In which stage of the demographic transition are both the birth rate and the death rate high, so that population grows slowly?

  1. A.The first or high stationary stage
  2. B.The second or early expanding stage
  3. C.The third or low stationary stage
  4. D.The stage of population explosion
Show answer
Correct answer: A. The first or high stationary stage

In the first stage of the demographic transition the society is rural and agrarian, life expectancy is low, medical facilities are poor and literacy is low, so both the birth rate and the death rate are high and they roughly cancel each other, leaving population almost stationary.

Q1879.GeographyMedium

An Essay on the Principle of Population, published in 1798, was written by

  1. A.David Ricardo
  2. B.Thomas Malthus
  3. C.Adam Smith
  4. D.Alfred Marshall
Show answer
Correct answer: B. Thomas Malthus

In this essay of 1798 Malthus argued that population tends to increase in a geometric progression while the means of subsistence can increase only in an arithmetic progression, so growth must be restrained either by positive checks such as famine, disease and war, or by preventive checks such as late…

Q1880.GeographyEasy

The density of population is usually expressed as

  1. A.Persons per square kilometre
  2. B.Square kilometres per person
  3. C.Persons per thousand births
  4. D.Births per thousand persons
Show answer
Correct answer: A. Persons per square kilometre

Density of population is a ratio between the number of people and the area they occupy, and the standard unit is the number of persons living in one square kilometre; it is the simplest way of measuring the pressure of people on land.

GK Questions for sub-exams