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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

Q5721.GeographyMedium

The Ten Degree Channel separates which two island groups?

  1. A.Lakshadweep and the Maldives
  2. B.Andaman and Nicobar
  3. C.Minicoy and Lakshadweep
  4. D.Great Nicobar and Sumatra
Show answer
Correct answer: B. Andaman and Nicobar

The correct answer is B, the Andaman and the Nicobar groups, which lie on either side of the Ten Degree Channel in the Bay of Bengal, the name coming from the ten degree north parallel along which it runs.

Q5722.GeographyEasy

India is separated from Sri Lanka by

  1. A.the Ten Degree Channel
  2. B.the Palk Strait and the Gulf of Mannar
  3. C.the Eight Degree Channel
  4. D.the Duncan Passage
Show answer
Correct answer: B. the Palk Strait and the Gulf of Mannar

The correct answer is B, the Palk Strait and the Gulf of Mannar, the shallow waters between Tamil Nadu and Sri Lanka, with the chain of sandbanks called Adam's Bridge or Rama Setu running between Rameswaram and Talaimannar.

Q5723.GeographyMedium

The McMahon Line demarcates the boundary between

  1. A.India and Nepal
  2. B.India and Bhutan
  3. C.India and China
  4. D.India and Bangladesh
Show answer
Correct answer: C. India and China

The line was drawn at the Simla Convention of 1914 by Sir Henry McMahon, then the Foreign Secretary of British India, in an agreement with Tibet; China has never accepted it, which is the root of the dispute in that sector.

Q5724.GeographyEasy

The Radcliffe Line is the boundary between

  1. A.India and China
  2. B.India and Pakistan
  3. C.India and Myanmar
  4. D.Pakistan and Afghanistan
Show answer
Correct answer: B. India and Pakistan

The line was drawn in 1947 by Sir Cyril Radcliffe, who chaired the boundary commissions that divided Punjab and Bengal, so the same line also forms the India-Bangladesh boundary, Bangladesh having been East Pakistan until 1971.

Q5733.General ScienceHard

The gum which coats the silk fibre and is removed by degumming is

  1. A.Fibroin
  2. B.Sericin
  3. C.Chitin
  4. D.Keratin
Show answer
Correct answer: B. Sericin

The silkworm's silk gland secretes a protein called fibroin, and over it a second protein, sericin, which acts as a gum and hardens the cocoon; boiling the cocoon softens the sericin so the filament can be reeled, and removing it afterwards is called degumming, which gives silk its lustre and…

Q5736.General ScienceMedium

Lac is secreted by which insect?

  1. A.Kerria lacca
  2. B.Bombyx mori
  3. C.Apis dorsata
  4. D.Antheraea proylei
Show answer
Correct answer: A. Kerria lacca

The correct answer is A, Kerria lacca, earlier named Laccifer lacca, a tiny scale insect whose female settles on the twigs of a host tree, sucks its sap and secretes the resin we call lac.

Q5737.General ScienceMedium

The waggle dance by which honey bees communicate the direction and distance of a food source was explained by

  1. A.Karl von Frisch
  2. B.Konrad Lorenz
  3. C.Charles Darwin
  4. D.Nikolaas Tinbergen
Show answer
Correct answer: A. Karl von Frisch

The correct answer is A, Karl von Frisch, who decoded the dance language of bees: a round dance for a source near the hive and a waggle or tail-wagging dance for a distant one, in which the angle of the straight run shows the direction of the food relative to…

Q5738.General ScienceHard

In a honey bee colony, drones develop from

  1. A.fertilised eggs laid by the queen
  2. B.unfertilised eggs laid by the queen
  3. C.eggs laid by the worker bees in all cases
  4. D.larvae fed on royal jelly throughout
Show answer
Correct answer: B. unfertilised eggs laid by the queen

The queen can lay both fertilised and unfertilised eggs; the unfertilised ones develop into haploid males called drones, a form of parthenogenesis, while fertilised eggs give rise to diploid females.

GK Questions for sub-exams