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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

Q6221.GeographyHard

The Barak river waterway in Assam, from Lakhipur to Bhanga, carries which number?

  1. A.National Waterway 2
  2. B.National Waterway 6
  3. C.National Waterway 16
  4. D.National Waterway 110
Show answer
Correct answer: C. National Waterway 16

The Barak between Lakhipur and Bhanga, about 121 km, serves the Barak valley of southern Assam, and through Karimganj it joins the protocol route across Bangladesh, which makes it the lifeline of a region cut off from the rest of Assam by hills.

Q6223.GeographyMedium

How many inland waterways were declared national waterways by the National Waterways Act, 2016?

  1. A.Five
  2. B.Twenty-nine
  3. C.One hundred and eleven
  4. D.One hundred and twenty-six
Show answer
Correct answer: C. One hundred and eleven

The National Waterways Act, 2016 brought together in one statute the five waterways already declared between 1986 and 2008 and added many more, making 111 in all, spread over rivers, canals, creeks, estuaries and backwaters in most states of the country.

Q6225.GeographyMedium

National Waterway 2 lies between which two places?

  1. A.Dhubri and Sadiya
  2. B.Haldia and Prayagraj
  3. C.Kollam and Kottapuram
  4. D.Lakhipur and Bhanga
Show answer
Correct answer: A. Dhubri and Sadiya

National Waterway 2 follows the Brahmaputra for 891 km inside Assam, from Dhubri on the Bangladesh border to Sadiya in the upper valley, and its principal terminal is Pandu near Guwahati.

Q6227.GeographyEasy

National Waterway 1 of India runs along which river system?

  1. A.Brahmaputra
  2. B.Ganga, Bhagirathi and Hooghly
  3. C.Godavari and Krishna
  4. D.Narmada and Tapi
Show answer
Correct answer: B. Ganga, Bhagirathi and Hooghly

National Waterway 1 runs 1,620 km from Haldia in West Bengal to Prayagraj in Uttar Pradesh, through West Bengal, Jharkhand, Bihar and Uttar Pradesh, and was the first waterway to be declared national, in 1986.

Q6228.Environment & EcologyMedium

Which zoo in India, the highest in altitude, is known for breeding the red panda and the snow leopard?

  1. A.Padmaja Naidu Himalayan Zoological Park, Darjeeling
  2. B.Sri Chamarajendra Zoological Gardens, Mysuru
  3. C.Alipore Zoological Garden, Kolkata
  4. D.Nandankanan Zoological Park, Bhubaneswar
Show answer
Correct answer: A. Padmaja Naidu Himalayan Zoological Park, Darjeeling

The correct answer is A, the Padmaja Naidu Himalayan Zoological Park at Darjeeling, the highest altitude zoo in India, which runs recognised conservation breeding programmes for the red panda, the snow leopard and the Himalayan wolf, and has released captive-bred red pandas into the Singalila landscape.

Q6229.Environment & EcologyEasy

The cheetah, which had become extinct in India, was reintroduced into which national park?

  1. A.Kanha National Park
  2. B.Kuno National Park
  3. C.Bandhavgarh National Park
  4. D.Panna National Park
Show answer
Correct answer: B. Kuno National Park

The correct answer is B, Kuno National Park in the Sheopur area of Madhya Pradesh, where cheetahs brought from Namibia and South Africa were released from 2022 under the cheetah reintroduction project; the cheetah had been declared extinct in India in 1952.

Q6230.Environment & EcologyMedium

The conservation breeding centres for the Great Indian Bustard are located in which state?

  1. A.Gujarat
  2. B.Rajasthan
  3. C.Maharashtra
  4. D.Madhya Pradesh
Show answer
Correct answer: B. Rajasthan

The breeding centres stand in the Jaisalmer region, near the Desert National Park, which holds the largest surviving population of the bird, and they are run by the state forest department with the Wildlife Institute of India: eggs are collected from the wild, hatched in incubators and the chicks reared…

Q6231.Environment & EcologyMedium

Cryopreservation of pollen, tissue and embryos is carried out in liquid nitrogen at a temperature of about:

  1. A.Minus 20 degrees Celsius
  2. B.Minus 80 degrees Celsius
  3. C.Minus 196 degrees Celsius
  4. D.Minus 273 degrees Celsius
Show answer
Correct answer: C. Minus 196 degrees Celsius

The correct answer is C, about minus 196 degrees Celsius, the boiling point of liquid nitrogen, at which all metabolic activity in the stored material stops and the germplasm can be kept for very long periods without change.

Q6232.Environment & EcologyMedium

Seeds that cannot be dried and frozen for long-term storage in a seed bank are called:

  1. A.Orthodox seeds
  2. B.Recalcitrant seeds
  3. C.Dormant seeds
  4. D.Hybrid seeds
Show answer
Correct answer: B. Recalcitrant seeds

These seeds lose their viability when their moisture content is reduced, so they cannot be kept in the cold rooms of a seed bank; mango, jackfruit, coconut, cocoa and most tropical fruit trees are examples, and they are conserved instead in field gene banks, as tissue cultures or in cryobanks.

Q6234.Environment & EcologyHard

The National Gene Bank, one of the largest plant germplasm collections in the world, is maintained by which institution?

  1. A.National Bureau of Plant Genetic Resources, New Delhi
  2. B.Botanical Survey of India, Kolkata
  3. C.National Botanical Research Institute, Lucknow
  4. D.Indian Agricultural Research Institute, Pusa
Show answer
Correct answer: A. National Bureau of Plant Genetic Resources, New Delhi

The correct answer is A, the National Bureau of Plant Genetic Resources at New Delhi, an institute of the Indian Council of Agricultural Research, which holds the National Gene Bank where seeds of crop plants and their wild relatives are stored at low temperature for long-term conservation.

Q6236.Environment & EcologyMedium

Which is the oldest formally established zoo in India, opened in 1876?

  1. A.National Zoological Park, Delhi
  2. B.Alipore Zoological Garden, Kolkata
  3. C.Nehru Zoological Park, Hyderabad
  4. D.Arignar Anna Zoological Park, Chennai
Show answer
Correct answer: B. Alipore Zoological Garden, Kolkata

The correct answer is B, the Alipore Zoological Garden in Kolkata, opened to the public in 1876 and therefore the oldest formally established zoo in the country.

Q6237.Environment & EcologyMedium

The Central Zoo Authority was constituted under which law?

  1. A.Wild Life (Protection) Act, 1972
  2. B.Environment (Protection) Act, 1986
  3. C.Biological Diversity Act, 2002
  4. D.Forest (Conservation) Act, 1980
Show answer
Correct answer: A. Wild Life (Protection) Act, 1972

The amendment of 1991 inserted the provisions on zoos into that Act, and the Central Zoo Authority was constituted in 1992 to recognise zoos, prescribe standards for animal housing, upkeep and veterinary care and coordinate conservation breeding; a zoo without its recognition cannot operate.

Q6238.Environment & EcologyEasy

Which of the following is an example of ex-situ conservation?

  1. A.Biosphere reserve
  2. B.Wildlife sanctuary
  3. C.National park
  4. D.Botanical garden
Show answer
Correct answer: D. Botanical garden

Ex-situ conservation means keeping a species, or only its germplasm, outside its natural habitat, which is what a botanical garden, a zoo, an aquarium, a seed bank, a gene bank or a conservation breeding centre does.

Q6239.Indian PolityHard

Consider the following statements about the appointment of the Chief Justice of India and identify the correct ones.

1. The Constitution expressly provides that the senior-most judge of the Supreme Court shall be appointed Chief Justice of India.
2. The convention of appointing the senior-most judge was set aside in 1973 and again in 1977.
3. The outgoing Chief Justice of India recommends the name of his successor.

  1. A.Only 1 and 2
  2. B.Only 2 and 3
  3. C.Only 1 and 3
  4. D.All of 1, 2 and 3
Show answer
Correct answer: B. Only 2 and 3

Statement 1 is wrong: the Constitution nowhere says that the senior-most judge must become Chief Justice of India; seniority is a convention and the Memorandum of Procedure records it, not Article 124.

Q6240.Indian PolityMedium

Under which Article can the President transfer a judge from one High Court to another?

  1. A.Article 219
  2. B.Article 221
  3. C.Article 222
  4. D.Article 224
Show answer
Correct answer: C. Article 222

The correct answer is C, Article 222, which empowers the President to transfer a judge from one High Court to any other High Court after consultation with the Chief Justice of India; by the collegium practice laid down in the Third Judges Case, the Chief Justice forms that opinion with…

GK Questions for sub-exams