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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

Q2901.Indian PolityMedium

The Constitution (One Hundred and Third Amendment) Act, 2019 inserted which clauses to provide reservation for the economically weaker sections?

  1. A.Articles 15(5) and 16(5)
  2. B.Articles 15(6) and 16(6)
  3. C.Articles 16(4A) and 16(4B)
  4. D.Articles 338A and 338B
Show answer
Correct answer: B. Articles 15(6) and 16(6)

The 103rd Amendment Act of 2019 added clause (6) to Article 15 for reservation in admission to educational institutions and clause (6) to Article 16 for reservation in appointments, in each case up to ten per cent for the economically weaker sections of citizens who are not covered by the…

Q2902.Indian PolityEasy

Which Article of the Constitution of India allows the State to reserve appointments or posts for a backward class not adequately represented in its services?

  1. A.Article 14
  2. B.Article 15(4)
  3. C.Article 16(4)
  4. D.Article 19(1)(g)
Show answer
Correct answer: C. Article 16(4)

It says that nothing in Article 16 shall prevent the State from making any provision for the reservation of appointments or posts in favour of any backward class of citizens which, in the opinion of the State, is not adequately represented in the services under the State.

Q2903.Indian PolityAsked in: SSC GD Constable · 15 Feb 2019, Shift 1Easy

The B.P. Mandal commission was set up to study the reasons of backwardness of the:

  1. A.scheduled tribes
  2. B.scheduled castes
  3. C.rural women and children
  4. D.socially and educationally backward classes
Show answer
Correct answer: D. socially and educationally backward classes

The Second Backward Classes Commission was appointed in 1979 under Article 340 of the Constitution, which empowers the President to appoint a commission to investigate the conditions of socially and educationally backward classes.

Q2906.GeographyMedium

The Beas river joins the Sutlej at which place in Punjab?

  1. A.Harike
  2. B.Ferozepur
  3. C.Ropar
  4. D.Ludhiana
Show answer
Correct answer: A. Harike

The Beas, which rises at Beas Kund near the Rohtang Pass, joins the Sutlej at Harike in the Tarn Taran district of Punjab, where a barrage has been built; the Indira Gandhi Canal, which carries water into the desert of Rajasthan, takes off from this barrage, and the wetland there…

Q2908.GeographyMedium

Through which pass does the Sutlej river enter India?

  1. A.Rohtang Pass
  2. B.Shipki La
  3. C.Nathu La
  4. D.Zoji La
Show answer
Correct answer: B. Shipki La

The Sutlej rises in the Rakshastal area of Tibet, near Lake Mansarovar, and enters India through the Shipki La pass in the Kinnaur district of Himachal Pradesh, after which it flows past the Bhakra dam into the plains of Punjab.

Q2910.GeographyHard

The Kishanganga project, on which a Court of Arbitration gave its award in 2013, lies on a tributary of which river?

  1. A.The Indus
  2. B.The Jhelum
  3. C.The Chenab
  4. D.The Ravi
Show answer
Correct answer: B. The Jhelum

The Kishanganga, known as the Neelum in Pakistan, is a tributary of the Jhelum, and the Court of Arbitration at The Hague held in 2013 that India could divert its water for generating power at the Kishanganga project while maintaining a minimum flow downstream.

Q2911.GeographyHard

The Baglihar hydroelectric project dispute on the Chenab was decided by which authority under the treaty?

  1. A.The Permanent Indus Commission
  2. B.A Neutral Expert
  3. C.A Court of Arbitration
  4. D.The United Nations Security Council
Show answer
Correct answer: B. A Neutral Expert

When the Permanent Indus Commission could not settle Pakistan's objections to the design of the Baglihar dam, the matter was referred to a Neutral Expert, the Swiss engineer Raymond Lafitte, appointed with the help of the World Bank, who gave his determination in 2007 and allowed the project with changes…

Q2912.GeographyMedium

Which international institution acted as the broker of the Indus Waters Treaty and is a signatory to it?

  1. A.The United Nations
  2. B.The World Bank
  3. C.The International Court of Justice
  4. D.The Asian Development Bank
Show answer
Correct answer: B. The World Bank

The Bank brought India and Pakistan to the table in 1952, proposed the division of the rivers into eastern and western groups, helped to arrange the finance for Pakistan's replacement canals, and signed the treaty for the limited purposes in which it has a role, such as helping to appoint…

Q2913.GeographyEasy

Under the Indus Waters Treaty, which group of rivers was allotted to India for unrestricted use?

  1. A.Indus, Jhelum and Chenab
  2. B.Ravi, Beas and Sutlej
  3. C.Ganga, Yamuna and Gomti
  4. D.Chenab, Ravi and Beas
Show answer
Correct answer: B. Ravi, Beas and Sutlej

These are the three eastern rivers of the Indus system, and the treaty gives their waters to India for unrestricted use, which is why the Bhakra dam on the Sutlej, the Pong dam on the Beas and the Ranjit Sagar dam on the Ravi could be built.

Q2915.General ScienceEasy

Why is the efficiency of every real machine less than one hundred per cent?

  1. A.Because the load is always greater than the effort
  2. B.Because part of the work done is spent against friction
  3. C.Because the velocity ratio is always less than one
  4. D.Because machines create energy of their own
Show answer
Correct answer: B. Because part of the work done is spent against friction

In every real machine some of the work put in is used in overcoming friction between the moving parts and in lifting the parts of the machine itself, and that work leaves the system as heat and sound, so the work delivered to the load is always less than the…

Q2916.General ScienceEasy

Which of the following is an example of a wedge?

  1. A.A crowbar
  2. B.An axe
  3. C.A pulley block
  4. D.A steering wheel
Show answer
Correct answer: B. An axe

A wedge is two inclined planes joined back to back, and an axe, a knife, a chisel and a nail all work on that principle: a force applied at the blunt end is turned into a much larger sideways force at the sharp edge, and the thinner and longer the…

Q2919.General ScienceMedium

What is the velocity ratio of a single fixed pulley?

  1. A.One
  2. B.Two
  3. C.Four
  4. D.Zero
Show answer
Correct answer: A. One

In a single fixed pulley the rope that is pulled down moves exactly as far as the load rises, so the distance moved by the effort equals the distance moved by the load and the velocity ratio is one; the pulley gives no gain in force and is used only…

GK Questions for sub-exams