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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

Q4781.Indian HistoryHard

Who was the chairman of the States Reorganisation Commission appointed in 1953?

  1. A.K. M. Panikkar
  2. B.H. N. Kunzru
  3. C.Fazl Ali
  4. D.S. K. Dhar
Show answer
Correct answer: C. Fazl Ali

The States Reorganisation Commission was appointed in December 1953 under Justice Fazl Ali, with the historian and diplomat K. M. Panikkar and the educationist H. N. Kunzru as its two members, and its report of 1955 accepted language as a basis for reorganisation while rejecting the formula of one language…

Q4782.Indian HistoryMedium

The death of which leader after a prolonged fast led to the creation of Andhra State in 1953?

  1. A.Potti Sriramulu
  2. B.Tanguturi Prakasam
  3. C.N. G. Ranga
  4. D.Pattabhi Sitaramayya
Show answer
Correct answer: A. Potti Sriramulu

He fasted for a separate Telugu-speaking state and died on 15 December 1952 on the fifty-eighth day of the fast; the protests that followed forced the government to announce Andhra State, which was created on 1 October 1953 as the first state formed on a linguistic basis, with Kurnool as…

Q4783.Indian HistoryEasy

Who headed the States Department that carried out the integration of the princely states after 1947?

  1. A.Jawaharlal Nehru
  2. B.Sardar Vallabhbhai Patel
  3. C.C. Rajagopalachari
  4. D.Rajendra Prasad
Show answer
Correct answer: B. Sardar Vallabhbhai Patel

The States Department was created in July 1947 with Patel as the minister in charge and V. P. Menon as its secretary, and the pair persuaded the rulers to sign the Instrument of Accession, which is why Patel is remembered as the Iron Man of India and his birthday is…

Q4784.Indian HistoryMedium

Which operation was carried out to merge the princely state of Hyderabad with the Indian Union in September 1948?

  1. A.Operation Vijay
  2. B.Operation Polo
  3. C.Operation Meghdoot
  4. D.Operation Cactus
Show answer
Correct answer: B. Operation Polo

The Nizam of Hyderabad signed a Standstill Agreement in November 1947 and then delayed accession while the Razakar militia terrorised the countryside; the Indian government sent in troops from 13 to 18 September 1948 in an action called Operation Polo, after which Hyderabad acceded to India.

Q4785.GeographyHard

Which two countries of South America are landlocked?

  1. A.Chile and Peru
  2. B.Bolivia and Paraguay
  3. C.Ecuador and Uruguay
  4. D.Guyana and Suriname
Show answer
Correct answer: B. Bolivia and Paraguay

Bolivia lost its coast on the Pacific to Chile in the War of the Pacific in the nineteenth century and now reaches the sea only through the ports of its neighbours, while Paraguay lies in the interior and depends on the Parana and Paraguay rivers for an outlet, which is…

Q4786.GeographyMedium

The Great Artesian Basin, the largest artesian basin in the world, lies in which continent?

  1. A.South America
  2. B.Africa
  3. C.Australia
  4. D.North America
Show answer
Correct answer: C. Australia

The Great Artesian Basin lies below the dry interior of eastern Australia, mainly under Queensland and parts of New South Wales, South Australia and the Northern Territory, and it is the largest artesian basin in the world; water enters the porous rock where it is exposed near the Great Dividing…

Q4787.GeographyEasy

The Panama Canal connects the Pacific Ocean with which other water body?

  1. A.Indian Ocean
  2. B.Caribbean Sea and the Atlantic Ocean
  3. C.Mediterranean Sea
  4. D.Arctic Ocean
Show answer
Correct answer: B. Caribbean Sea and the Atlantic Ocean

The Panama Canal was opened in 1914 across the narrow isthmus of Panama, it is about eighty kilometres long and uses a system of locks and the artificial Gatun Lake, and it saves a ship sailing between New York and San Francisco the long voyage around Cape Horn at the…

Q4789.GeographyEasy

Which is the most important river system of Australia?

  1. A.Murray-Darling
  2. B.Mackenzie
  3. C.Orinoco
  4. D.Parana
Show answer
Correct answer: A. Murray-Darling

The Murray rises in the Snowy Mountains of the Great Dividing Range and, with its long tributary the Darling, drains the south-eastern interior of Australia; the basin is the country's chief farming region for wheat, fruit and sheep, and it is supported by the Snowy Mountains water scheme and by…

Q4790.GeographyMedium

The Great Barrier Reef, the largest coral reef in the world, lies off the coast of which Australian state?

  1. A.Queensland
  2. B.Victoria
  3. C.Western Australia
  4. D.Tasmania
Show answer
Correct answer: A. Queensland

The Great Barrier Reef stretches for over two thousand kilometres in the Coral Sea along the north-eastern coast of Queensland, is the largest coral reef system in the world, and was placed on the list of World Heritage sites in 1981; the warm shallow tropical water of the continental shelf…

Q4793.GeographyMedium

Lake Titicaca, the highest navigable lake in the world, lies on the border of which two countries?

  1. A.Peru and Bolivia
  2. B.Chile and Argentina
  3. C.Brazil and Paraguay
  4. D.Ecuador and Colombia
Show answer
Correct answer: A. Peru and Bolivia

Lake Titicaca lies on the Altiplano plateau of the Andes at a height of about three thousand eight hundred metres and is shared by Peru and Bolivia; it is the highest lake in the world on which steamers ply, which is the exact reason it is called the highest navigable…

Q4796.GeographyEasy

Which is the highest peak of the continent of North America?

  1. A.Mount Logan
  2. B.Denali
  3. C.Pico de Orizaba
  4. D.Mount Whitney
Show answer
Correct answer: B. Denali

Denali, which was earlier called Mount McKinley, stands in Alaska in the United States and is the highest peak of North America at about six thousand one hundred ninety metres; the name means the high one in the local Athabaskan language and was officially restored in 2015.

Q4797.General ScienceEasy

Raising a large number of identical plants from a small piece of tissue in a nutrient medium is called

  1. A.Micropropagation
  2. B.Hybridisation
  3. C.Grafting
  4. D.Vernalisation
Show answer
Correct answer: A. Micropropagation

A small piece of tissue called an explant is placed in a sterile nutrient medium with growth regulators, it forms an unorganised mass called a callus and then whole plantlets, because a plant cell is totipotent, that is, able to give rise to a complete plant; the plants so raised…

Q4798.General ScienceMedium

The CRISPR and Cas9 system is used for which purpose?

  1. A.Gene editing
  2. B.Measuring blood sugar
  3. C.Separating proteins
  4. D.Sterilising instruments
Show answer
Correct answer: A. Gene editing

The system comes from a defence mechanism of bacteria against viruses: a guide RNA takes the Cas9 protein to a chosen sequence in the DNA, Cas9 cuts both strands there, and the cell's own repair machinery then changes the sequence, so a gene can be switched off or corrected in…

Q4799.General ScienceMedium

Which body gives approval for the release of genetically modified organisms in India?

  1. A.Indian Council of Agricultural Research
  2. B.Genetic Engineering Appraisal Committee
  3. C.Food Safety and Standards Authority of India
  4. D.Central Pollution Control Board
Show answer
Correct answer: B. Genetic Engineering Appraisal Committee

This committee works under the Ministry of Environment, Forest and Climate Change and appraises proposals for the large scale use and the environmental release of genetically engineered organisms and products, so no transgenic crop may be grown commercially without its clearance.

Q4800.General ScienceMedium

Gene therapy was first attempted in 1990 on a patient suffering from the deficiency of which enzyme?

  1. A.Adenosine deaminase
  2. B.Amylase
  3. C.Lipase
  4. D.Trypsin
Show answer
Correct answer: A. Adenosine deaminase

The deficiency of adenosine deaminase destroys the immune system because the enzyme is needed for the normal working of lymphocytes, and in 1990 lymphocytes of a girl with this disorder were grown outside the body, given a functional gene and returned to her blood; since those cells are not permanent…

GK Questions for sub-exams