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NDA GK Questions 2026

Static general knowledge makes up about 90% of Part B of the NDA General Ability Test, about 360 of its 400 marks. The NDA & NA (II) 2026 notice divides it into five sections: Physics (about 25%), Chemistry (about 15%), General Science (about 10%), History, Freedom Movement etc. (about 20%) and Geography (about 20%). Half of Part B is science. Physics covers matter, motion, gravitation, heat, sound, light, magnetism, electricity and the working of everyday devices such as the siphon, pressure cooker, periscope and safety fuse. Chemistry covers changes of matter, elements and compounds, common gases, acids, bases and salts, carbon, fertilizers and the materials used to make soap, glass, cement and gunpowder. General Science covers cells, the human body, diseases, diet, the solar system and eminent scientists. Section D spans Indian history and culture, the freedom movement, the Constitution, Five Year Plans, Panchayati Raj and world history from the Renaissance to the Russian Revolution. Geography covers the Earth, rocks, oceans, the atmosphere and climate, and India's resources, industries, ports and trade. This page holds GK24's topic-wise GK notes for NDA, in English and Hindi, written as short facts and tables. Read a topic, then solve its quiz and previous-year questions on this site.

NDA GK Questions with Answers

Q3241.General ScienceAsked in: UPSC Civil Services · CSE Prelims 2019, GS Paper IMedium

Consider the following statements : 1. Some species of turtles are herbivores. 2. Some species of fish are herbivores. 3. Some species of marine mammals are herbivores. 4. Some species of snakes are viviparous. Which of the statements given above are correct?

  1. A.1 and 3 only
  2. B.2, 3 and 4 only
  3. C.2 and 4 only
  4. D.1, 2, 3 and 4
Show answer
Correct answer: D. 1, 2, 3 and 4

Each statement is true: there are plant-eating turtles, fish and marine mammals, and some snakes give birth to live young.

Q3242.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2020, GS Paper IMedium

Consider the following statements : 1. Genetic changes can be introduced in the cells that produce eggs or sperms of a prospective parent. 2. A person's genome can be edited before birth at the early embryonic stage. 3. Human induced pluripotent stem cells can be injected into the embryo of a pig. Which of the statements given above is/are correct?

  1. A.1 only
  2. B.2 and 3 only
  3. C.2 only
  4. D.1, 2 and 3
Show answer
Correct answer: D. 1, 2 and 3

With today's gene-editing and stem cell tools, all three procedures are technically possible. Changes made in germline cells, the cells that give rise to eggs or sperm, are passed on to the next generation, and tools such as CRISPR-Cas9 can make such edits.

Q3243.Environment & EcologyAsked in: UPSC Civil Services · CSE Prelims 2024, GS Paper IMedium

"Membrane Bioreactors" are often discussed in the context of :

  1. A.Assisted reproductive technologies
  2. B.Drug delivery nanotechnologies
  3. C.Vaccine production technologies
  4. D.Wastewater treatment technologies
Show answer
Correct answer: D. Wastewater treatment technologies

A membrane bioreactor treats sewage or industrial effluent by combining biological breakdown of waste with filtration through fine membranes. In a membrane bioreactor (MBR), microorganisms in an aerated tank digest the organic matter in wastewater, as in the conventional activated sludge process.

Q3244.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2025, GS Paper IEasy

Consider the following types of vehicles : I. Full battery electric vehicles II. Hydrogen fuel cell vehicles III. Fuel cell-electric hybrid vehicles How many of the above are considered as alternative powertrain vehicles?

  1. A.Only one
  2. B.Only two
  3. C.All the three
  4. D.None
Show answer
Correct answer: C. All the three

Any vehicle that does not depend only on a petrol or diesel engine for propulsion counts as an alternative powertrain vehicle, and all three types qualify.

Q3245.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2020, GS Paper IMedium

"The experiment will employ a trio of spacecraft flying in formation in the shape of an equilateral triangle that has sides one million kilometres long, with lasers shining between the craft." The experiment in question refers to

  1. A.Voyager-2
  2. B.New Horizons
  3. C.LISA Pathfinder
  4. D.Evolved LISA
Show answer
Correct answer: D. Evolved LISA

eLISA is the planned space observatory of three spacecraft, linked by lasers in a giant triangle, that will detect gravitational waves.

Q3246.Environment & EcologyAsked in: UPSC Civil Services · CSE Prelims 2024, GS Paper IEasy

Recently, the term "pumped-storage hydropower" is actually and appropriately discussed in the context of which one of the following?

  1. A.Irrigation of terraced crop fields
  2. B.Lift irrigation of cereal crops
  3. C.Long duration energy storage
  4. D.Rainwater harvesting system
Show answer
Correct answer: C. Long duration energy storage

Pumped-storage hydropower stores surplus electricity by pumping water uphill and gives it back when the water flows down through turbines.

Q3247.GeographyAsked in: UPSC Civil Services · CSE Prelims 2025, GS Paper IHard

With reference to the planet Earth, consider the following statements : I. Rain forests produce more oxygen than that produced by oceans. II. Marine phytoplankton and photosynthetic bacteria produce about 50% of world's oxygen. III. Well-oxygenated surface water contains several folds higher oxygen than that in atmospheric air. Which of the statements given above is/are correct?

  1. A.I and II
  2. B.II only
  3. C.I and III
  4. D.None of the above statements is correct
Show answer
Correct answer: B. II only

About half of the oxygen made on Earth comes from ocean phytoplankton and cyanobacteria, more than from rain forests, and sea water holds far less oxygen than air.

Q3248.Environment & EcologyAsked in: UPSC Civil Services · CSE Prelims 2019, GS Paper IEasy

In the context of which one of the following are the terms 'pyrolysis and plasma gasification' mentioned?

  1. A.Extraction of rare earth elements
  2. B.Natural gas extraction technologies
  3. C.Hydrogen fuel-based automobiles
  4. D.Waste-to-energy technologies
Show answer
Correct answer: D. Waste-to-energy technologies

Pyrolysis and plasma gasification are two thermal methods of turning solid waste into fuel gas, oil or power.

Q3249.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2020, GS Paper IEasy

Consider the following activities : 1. Spraying pesticides on a crop field 2. Inspecting the craters of active volcanoes 3. Collecting breath samples from spouting whales for DNA analysis At the present level of technology, which of the above activities can be successfully carried out by using drones ?

  1. A.1 and 2 only
  2. B.2 and 3 only
  3. C.1 and 3 only
  4. D.1, 2 and 3
Show answer
Correct answer: D. 1, 2 and 3

Drones are already used for all three jobs: spraying crops, looking into volcanic craters and catching whale breath for study.

Q3252.Indian HistoryAsked in: UPSC CAPF · CAPF 2019, Paper IEasy

According to which one of the following plans/reports, the decision with regard to the partition of Punjab and Bengal was to be taken on the basis of voting of the Members of the respective Legislative Assemblies?

  1. A.Nehru report
  2. B.Cripps mission plan
  3. C.Beveridge report
  4. D.Mountbatten plan
Show answer
Correct answer: D. Mountbatten plan

The plan of 3 June 1947 provided that the Legislative Assemblies of Punjab and Bengal would meet in two parts, Muslim-majority and non-Muslim-majority districts, and vote on whether the province should be partitioned.

Q3254.General ScienceAsked in: UPSC CAPF · CAPF 2023, Paper IEasy

The method used in separating a mixture of two miscible liquids having sufficient difference in their boiling points is :

  1. A.Filtration
  2. B.Solvent Extraction
  3. C.Centrifugation
  4. D.Simple Distillation
Show answer
Correct answer: D. Simple Distillation

Two liquids that mix completely but boil at clearly different temperatures can be separated by heating the mixture and condensing the vapour of the lower-boiling liquid first.

Q3256.Indian PolityAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

Which of the following statements about Public Interest Litigation (PIL) is/are correct?

1. In India, it adheres to the strict requirements imposed by the doctrine of locus standi.

2. Letters to judges may be treated as petitions.

3. M. C. Mehta vs. Union of India was a PIL that expanded the scope of Article 21 and Article 32 of the Constitution of India.

Select the answer using the code given below.

  1. A.1,2 and 3
  2. B.2 and 3 only
  3. C.3 only
  4. D.1 and 2 only
Show answer
Correct answer: B. 2 and 3 only

PIL in India relaxes the rule of locus standi, so statement 1 is wrong, while statements 2 and 3 are correct.

Q3257.Indian PolityAsked in: UPSC CAPF · CAPF 2019, Paper IMedium

Which of the following is NOT provided for under the Directive Principles of State Policy ?

  1. A.Right to work, to education and to public assistance in certain cases
  2. B.Uniform Civil Code for the citizens
  3. C.Separation of Judiciary from executive
  4. D.Participation of workers in the management of local-self government
Show answer
Correct answer: D. Participation of workers in the management of local-self government

Article 43A speaks of workers' participation in the management of industries, not of local self-government.

Q3259.Static GKAsked in: UPSC CAPF · CAPF 2023, Paper IEasy

Which of the following is/are not an official language(s) of the United Nations ?

1. Arabic

2. German

3. Spanish

4. Chinese

Select the correct answer using the code given below:

  1. A.1 and 3 only
  2. B.1 and 4 only
  3. C.1 and 2 only
  4. D.2 only
Show answer
Correct answer: D. 2 only

German is not an official language of the United Nations, while Arabic, Spanish and Chinese are. The UN has six official languages: Arabic, Chinese, English, French, Russian and Spanish.

Q3260.GeographyAsked in: UPSC CAPF · CAPF 2020, Paper IMedium

2011 Census has divided the working population of India into four major categories. Which one of the following is NOT one of them ?

  1. A.Cultivators
  2. B.Domestic workers
  3. C.Household industrial workers
  4. D.Agricultural Labourers
Show answer
Correct answer: B. Domestic workers

Census 2011 sorted workers into four economic categories: cultivators, agricultural labourers, household industry workers and other workers; domestic workers is not one of them.