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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

Q2001.General ScienceAsked in: NDA · NDA-II 2026, GATMedium

In humans, the exit of partially digested food from the stomach into the small intestine is regulated by which one of the following structures/processes?

  1. A.Peristalsis
  2. B.Muscular walls of stomach
  3. C.Sphincter muscle
  4. D.Villi in small intestine
Show answer
Correct answer: C. Sphincter muscle

A ring of muscle at the lower end of the stomach, the pyloric sphincter, opens and closes to let food pass into the small intestine a little at a time.

Q2002.General ScienceAsked in: UPSC Civil Services · CSE Prelims 2021, GS Paper IEasy

Which one of the following is a reason why astronomical distances are measured in light-years?

  1. A.Distances among stellar bodies do not change.
  2. B.Gravity of stellar bodies does not change.
  3. C.Light always travels in straight line.
  4. D.Speed of light is always same.
Show answer
Correct answer: D. Speed of light is always same.

. A light-year works as a unit of distance only because light in a vacuum always travels at the same speed, so the distance it covers in a year is fixed.

Q2003.Static GKAsked in: UPSC Civil Services · CSE Prelims 2017, GS Paper IMedium

Consider the following in respect of Indian Ocean Naval Symposium (IONS) : 1. Inaugural IONS was held in India in 2015 under the chairmanship of the Indian Navy. 2. IONS is a voluntary initiative that seeks to increase maritime co-operation among navies of the littoral states of the Indian Ocean Region. Which of the above statements is/are correct ?

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: B. 2 only

Statement 2 is correct, but statement 1 is wrong because the first IONS was held in 2008, not 2015. The Indian Ocean Naval Symposium was conceived by the Indian Navy, and its inaugural edition took place in New Delhi in February 2008 with India as the first chair.

Q2004.Indian PolityAsked in: UPSC CAPF · CAPF 2018, Paper IEasy

Ashok Mehta Committee was constituted to make recommendations on which one of the following issues?

  1. A.Division of tax revenues between Centre and States
  2. B.Panchayati Raj System
  3. C.Appointment of Governors
  4. D.Presidential and Vice Presidential elections
Show answer
Correct answer: B. Panchayati Raj System

The Janata government set up the Ashok Mehta Committee in December 1977 to suggest how to revive the weakening Panchayati Raj institutions.

Q2006.Environment & EcologyAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

Which one among the following is not a greenhouse gas?

  1. A.Sulphur dioxide
  2. B.Methane
  3. C.Nitrous oxide
  4. D.Fluorinated gas
Show answer
Correct answer: A. Sulphur dioxide

Sulphur dioxide is an air pollutant, not one of the greenhouse gases; in fact the sulphate particles it forms reflect sunlight and have a slight cooling effect.

Q2007.Indian HistoryAsked in: UPSC CAPF · CAPF 2018, Paper IEasy

The Buddhist text Majjhima Nikaya is in

  1. A.Sanskrit
  2. B.Pali
  3. C.Prakrit
  4. D.Telugu
Show answer
Correct answer: B. Pali

The Majjhima Nikaya is part of the Pali Canon, the Tipitaka of Theravada Buddhism. The Tipitaka has three baskets: the Vinaya Pitaka on rules for monks and nuns, the Sutta Pitaka on the Buddha's discourses, and the Abhidhamma Pitaka on philosophy.

Q2008.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

Which of the following statements regarding Carnot engine is/are correct?

1. It is an irreversible engine operating between two temperatures T1 (source) and T2 (sink).

2. Its efficiency is given by η = 1 − T2/T1, where T1 is the temperature of source and T2 is the temperature of sink.

Select the answer using the code given below.

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: B. 2 only

A Carnot engine is an ideal reversible engine, not an irreversible one, and its efficiency is 1 − T2/T1 with temperatures in kelvin.

Q2009.Books & AuthorsAsked in: UPSC CAPF · CAPF 2018, Paper IEasy

Who among the following was the author of Hind Swaraj?

  1. A.Aurobindo Ghose
  2. B.C. R. Das
  3. C.Mahatma Gandhi
  4. D.Rajendra Prasad
Show answer
Correct answer: C. Mahatma Gandhi

Gandhi wrote Hind Swaraj, or Indian Home Rule, in Gujarati in 1909. He wrote it in about ten days on board the ship Kildonan Castle while returning from London to South Africa.

Q2011.Indian PolityAsked in: UPSC CAPF · CAPF 2018, Paper IMedium

Which one of the following concerns has found a place in both Fundamental Duties and Directive Principles of State Policy?

  1. A.Safeguard of public property
  2. B.Protection and improvement of environment, forests and wildlife
  3. C.Respect for the rich heritage of our composite culture
  4. D.Promotion of cooperative societies
Show answer
Correct answer: B. Protection and improvement of environment, forests and wildlife

Article 48A directs the State to protect it, and Article 51A(g) makes it a duty of every citizen. Both provisions were added by the 42nd Amendment of 1976.

Q2012.Environment & EcologyAsked in: UPSC CAPF · CAPF 2025, Paper IEasy

The Ramsar Convention is an intergovernmental treaty which provides the framework for national action and international cooperation for the conservation of

  1. A.fish
  2. B.wildlife
  3. C.wetland
  4. D.art and culture
Show answer
Correct answer: C. wetland

The Ramsar Convention is the treaty for the conservation and wise use of wetlands and their resources. It was signed on 2 February 1971 in the Iranian city of Ramsar on the Caspian Sea and came into force in 1975, which makes it one of the oldest global environmental agreements.

Q2013.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

Which one among the following statements is correct?

  1. A.The total mechanical energy of a system is conserved if the forces, doing work on it, are conservative.
  2. B.The total mechanical energy of a system is conserved if the forces, doing work on it, are non-conservative.
  3. C.The total mechanical energy of a system remains constant.
  4. D.Every force encountered in mechanics does have an associated well-defined potential energy.
Show answer
Correct answer: A. The total mechanical energy of a system is conserved if the forces, doing work on it, are conservative.

When only conservative forces do work on a system, the sum of its kinetic and potential energy stays the same; this is the principle of conservation of mechanical energy.

Q2014.Indian PolityAsked in: UPSC CAPF · CAPF 2018, Paper IMedium

Which one of the following statements with regard to Panchayats is not correct?

  1. A.Members of Panchayats are elected directly by the Gram Sabha.
  2. B.The elections to Panchayats are conducted by the State Election Commission.
  3. C.The Central Government may by law authorize a Panchayat to levy taxes.
  4. D.Every Panchayat continues for five years from the date of convening of its first meeting.
Show answer
Correct answer: C. The Central Government may by law authorize a Panchayat to levy taxes.

Under Article 243H it is the State Legislature, not the Centre, that may by law let a Panchayat levy, collect and keep taxes, duties, tolls and fees.

Q2015.GeographyAsked in: UPSC CAPF · CAPF 2025, Paper IEasy

The seasonal variations in the amount of solar energy that any place on the Earth receives are influenced by

  1. A.the speed of rotation of the Earth
  2. B.pollution
  3. C.cloudiness
  4. D.the inclination of the Earth about its axis
Show answer
Correct answer: D. the inclination of the Earth about its axis

Because the axis is tilted and keeps pointing the same way as the Earth goes round the Sun, each place gets more sunlight in one half of the year and less in the other.

Q2016.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

For a particle in uniform circular motion (radius R and angular velocity ω), the magnitude and direction of acceleration, respectively are

  1. A.ωR, along the radius outward
  2. B.ωR, towards the centre of the circle
  3. C.ω²R, towards the centre of the circle
  4. D.ω²R, along the linear velocity
Show answer
Correct answer: C. ω²R, towards the centre of the circle

In uniform circular motion the speed stays the same but the direction keeps turning, and that change needs an acceleration pointing to the centre.

Q2017.Environment & EcologyAsked in: UPSC CAPF · CAPF 2018, Paper IMedium

The National Green Tribunal, set up to deal with the expeditious disposal of cases relating to environmental protection, was set up under the

  1. A.12th Five-Year Plan
  2. B.11th Five-Year Plan
  3. C.10th Five-Year Plan
  4. D.9th Five-Year Plan
Show answer
Correct answer: B. 11th Five-Year Plan

The National Green Tribunal was established in October 2010, and the 11th Plan ran from 2007 to 2012. The tribunal was created by the National Green Tribunal Act, 2010, which drew on Article 21's right to a healthy environment.

Q2018.Environment & EcologyAsked in: UPSC CAPF · CAPF 2024, Paper IHard

Which of the following statements about CBAM (Carbon Border Adjustment Mechanisms) is/are correct?

1. These are an emerging set of trade policy tools to allow movement of carbon-intensive economic activity from a jurisdiction having less stringent climate policy to a jurisdiction having stringent climate policy

2. These are meant to increase the environmental effectiveness of climate policies

Select the answer using the code given below:

  1. A.1 only
  2. B.2 only
  3. C.Both 1 and 2
  4. D.Neither 1 nor 2
Show answer
Correct answer: B. 2 only

A carbon border adjustment exists to stop carbon-intensive activity from moving out of a strict jurisdiction, not to help it move, and its aim is to make climate policy work better.

Q2019.General ScienceAsked in: UPSC CAPF · CAPF 2026, Paper IEasy

A uniform current-carrying narrow solenoid produces

  1. A.uniform magnetic field inside the solenoid
  2. B.uniform magnetic field outside the solenoid
  3. C.magnetic field with straight field lines in all the regions
  4. D.magnetic field with oscillating nature
Show answer
Correct answer: A. uniform magnetic field inside the solenoid

Inside a long, narrow solenoid the field lines run straight and parallel and are evenly spaced, which is the picture of a uniform field.

Q2020.General ScienceMedium

Which of the following is the main reason why meiosis is important for sexually reproducing organisms?

  1. A.It repairs damaged tissues
  2. B.It keeps the chromosome number constant across generations and creates genetic variation
  3. C.It allows cells to grow larger
  4. D.It produces identical copies of the parent cell
Show answer
Correct answer: B. It keeps the chromosome number constant across generations and creates genetic variation

If gametes carried the full chromosome number, fertilisation would double it in every generation. Meiosis halves the number when gametes are formed, so that the union of two gametes restores the original diploid number and keeps it constant from one generation to the next.