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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

Q5182.General ScienceAsked in: NDA · NDA-II 2019, GATMedium

When a ball bounces off the ground, which of the following changes suddenly? (Assume no loss of energy to the floor)

  1. A.Its speed
  2. B.Its momentum
  3. C.Its kinetic energy
  4. D.Its potential energy
Show answer
Correct answer: B. Its momentum

Momentum is a vector, and on bouncing the ball's direction of motion reverses at once, from downward to upward. Just before impact the ball moves down with velocity v, so its momentum is mv downward.

Q5183.Indian EconomyAsked in: NDA · NDA-I 2020, GATMedium

The call for Garibi Hatao was incorporated in

  1. A.Fourth Five Year Plan
  2. B.Fifth Five Year Plan
  3. C.Sixth Five Year Plan
  4. D.Seventh Five Year Plan
Show answer
Correct answer: B. Fifth Five Year Plan

The Fifth Plan (1974–79) made removal of poverty, or Garibi Hatao, and self-reliance its main aims. Garibi Hatao was the slogan with which Indira Gandhi's Congress won the 1971 Lok Sabha election.

Q5184.General ScienceAsked in: NDA · NDA-I 2021, GATEasy

The statement "friction force is a contact force while magnetic force is a non-contact force" is

  1. A.always true.
  2. B.true only at 0°C.
  3. C.a false statement.
  4. D.either true or false depending upon the temperature of the surroundings.
Show answer
Correct answer: A. always true.

Friction acts only where two surfaces touch, while a magnet can push or pull an object across a gap. Forces are grouped by whether the bodies must touch.

Q5190.Indian HistoryAsked in: NDA · NDA-I 2025, GATEasy

In British India, which one among the following Acts permitted detention without trial for up to two years?

  1. A.Regulating Act, 1773
  2. B.Rowlatt Act, 1919
  3. C.Pitt's India Act, 1784
  4. D.Government of India Act, 1935
Show answer
Correct answer: B. Rowlatt Act, 1919

This law let the government imprison people suspected of political activity without trial for up to two years. Officially the Anarchical and Revolutionary Crimes Act, it was passed in March 1919 on the advice of the Sedition Committee headed by Justice S.A.T.

Q5192.General ScienceAsked in: NDA · NDA-I 2026, GATMedium

For an object in gravitational field, the gravitational potential is the same at two points A and B, but the gravitational field is not the same at these two points. Which one of the following statements is correct?

  1. A.Positive work is done by gravity in moving the object from point A to point B.
  2. B.Negative work is done by gravity in moving the object from point A to point B.
  3. C.Gravity must be non-conservative in such a region.
  4. D.No work is done by gravity in moving the object from point A to point B.
Show answer
Correct answer: D. No work is done by gravity in moving the object from point A to point B.

Work done by gravity depends only on the difference in potential between the two points, and here that difference is zero.

Q5193.General ScienceAsked in: NDA · NDA-II 2026, GATHard

Consider the following : I. Gravitational field due to a spherical body II. Electrostatic field due to a point charge III. Strong nuclear force field due to a proton IV. Magnetic field due to a bar magnet How many of the above follow the inverse square law ?

  1. A.One
  2. B.Two
  3. C.Three
  4. D.All four
Show answer
Correct answer: B. Two

Only the gravitational field of a spherical body and the electrostatic field of a point charge fall off as 1/r².

Q5194.General ScienceAsked in: UPSC CAPF · CAPF 2019, Paper IEasy

Which of the following are the most favourable conditions for liquefying a gas ?

  1. A.Low pressure and high temperature
  2. B.Low pressure and low temperature
  3. C.High pressure and high temperature
  4. D.High pressure and low temperature
Show answer
Correct answer: D. High pressure and low temperature

High pressure pushes the gas molecules close together and low temperature slows them down, so the attractive forces can hold them as a liquid.

Q5195.General ScienceAsked in: UPSC CAPF · CAPF 2021, Paper IEasy

Which one among the following is not a luminous object?

  1. A.Sun
  2. B.Proxima Centauri
  3. C.Jupiter
  4. D.Alpha Centauri
Show answer
Correct answer: C. Jupiter

Jupiter is a planet; it does not make its own light and shines only by reflecting sunlight. A luminous object produces light of its own, as stars do by nuclear fusion in their cores, where hydrogen is turned into helium.

Q5197.General ScienceAsked in: UPSC CAPF · CAPF 2024, Paper IMedium

Which one among the following biotechnologies is applied to manufacture pharmaceutical products such as insulin, antibiotics and vaccines?

  1. A.White Biotechnology
  2. B.Red Biotechnology
  3. C.Green Biotechnology
  4. D.Blue Biotechnology
Show answer
Correct answer: B. Red Biotechnology

Red biotechnology is the branch applied to medicine and health care, including the making of insulin, antibiotics and vaccines. Biotechnology is often divided by colour according to its field of use.

Q5198.Indian HistoryAsked in: UPSC CAPF · CAPF 2017, Paper IHard

Which one of the following statements about the Treaty of Allahabad is NOT correct ?

  1. A.It was signed in the year 1765
  2. B.The Mughal Emperor by a farman formally granted the Diwani of Bengal, Bihar and Orissa to the East India Company
  3. C.Awadh was restored to its Nawab on payment of Rs. 50 Lakhs
  4. D.Banaras and the Surrounding tracts were detached from Awadh and handed over to Shah Alam II
Show answer
Correct answer: D. Banaras and the Surrounding tracts were detached from Awadh and handed over to Shah Alam II

The districts taken from Awadh and given to Shah Alam II were Kora and Allahabad, not Banaras. After the Battle of Buxar (1764), Robert Clive signed two treaties at Allahabad in August 1765.

GK Questions for sub-exams