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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

Q902.General ScienceAsked in: NDA · NDA-II 2021, GATEasy

Tyndall effect is a phenomenon of

  1. A.scattering of light by the colloidal particles.
  2. B.refraction of light by the colloidal particles.
  3. C.dispersion of light by dust particles.
  4. D.refraction of light by dust particles.
Show answer
Correct answer: A. scattering of light by the colloidal particles.

Particles in a colloid are large enough to scatter a beam of light, which makes the path of the beam visible.

Q904.General ScienceAsked in: NDA · NDA-II 2022, GATEasy

The refractive index of crown glass is close to 3/2. If the speed of light in air is c, then the speed of light in the crown glass will be close to

  1. A.(3/2)c
  2. B.(4/9)c
  3. C.(2/3)c
  4. D.(9/4)c
Show answer
Correct answer: C. (2/3)c

Refractive index is the ratio of the speed of light in air to its speed in the medium, so the speed in glass is c divided by 3/2, which is (2/3)c. The absolute refractive index of a medium is n = c/v, where c is the speed of light in…

Q906.Static GKAsked in: NDA · NDA-II 2023, GATHard

Which among the following statements regarding the election of non-permanent members to the United Nations Security Council is/are correct ?

1. Five members coming from Africa and Asia, one from Eastern Europe, two from Latin America and two from Western Europe and other states

2. Six members are elected each year by the General Assembly for two year term

Select the correct 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: A. 1 only

The ten non-permanent seats are shared by region as statement 1 says, but only five of them are filled each year, not six.

Q907.Indian HistoryAsked in: NDA · NDA-I 2024, GATHard

Consider the following statements about the arrival of tobacco in India :

1. Tobacco plant arrived first in the Deccan.

2. Tobacco spread to northern India in the early years of the seventeenth century.

Which of the statements given above 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: C. Both 1 and 2

Tobacco, a New World plant brought to India by the Portuguese, first reached the Deccan and then spread to northern India in the early seventeenth century.

Q908.GeographyAsked in: NDA · NDA-II 2024, GATMedium

Which of the following tributaries is/are correctly matched with the Deccan Rivers ?

Tributary — River

1. Bhavani — Krishna

2. Kabini — Kaveri

3. Manjra — Godavari

4. Bhima — Mahanadi

Select the answer using the code given below:

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

The Kabini is a tributary of the Kaveri and the Manjra is a tributary of the Godavari, so only pairs 2 and 3 are correct.

Q910.Indian HistoryAsked in: NDA · NDA-I 2026, GATHard

The large well supplying water to the Great Bath of Mohenjo-daro was located

  1. A.near the drain of the tank
  2. B.at the top of one of the staircases
  3. C.in one of the adjoining rooms on the eastern side
  4. D.at the bottom of the tank in a corner
Show answer
Correct answer: C. in one of the adjoining rooms on the eastern side

The Great Bath was surrounded by rooms, and a large well in one of the rooms on its eastern side supplied the water for the tank.

Q911.General ScienceAsked in: CDS · CDS-II 2019, GKEasy

Consider the following statement : "Atomic number of an element is a more fundamental property than its atomic mass." Who among the following scientists has made the above statement ?

  1. A.Dmitri Mendeleev
  2. B.Henry Moseley
  3. C.J.J. Thomson
  4. D.Ernest Rutherford
Show answer
Correct answer: B. Henry Moseley

In 1913 the English physicist Henry Moseley showed that atomic number, not atomic mass, is the fundamental property of an element.

Q913.Science & TechnologyAsked in: CDS · CDS-I 2022, GKEasy

The terms 'Pinaka and Smerch' mentioned in news recently refer to

  1. A.Cruise missiles
  2. B.Nuclear-powered submarines
  3. C.Rocket launcher systems
  4. D.Weaponised drones
Show answer
Correct answer: C. Rocket launcher systems

Pinaka and Smerch are both multi-barrel rocket launchers used by the Indian Army's artillery. Pinaka was developed by DRDO, with the Armament Research and Development Establishment at Pune as the lead laboratory, and is named after the bow of Lord Shiva.

Q914.Science & TechnologyAsked in: CDS · CDS-II 2022, GKMedium

P-75I (or P-75 India) project refers to manufacture of

  1. A.Diesel-electric submarines.
  2. B.Nuclear-powered submarines.
  3. C.Aircraft carrier warships.
  4. D.Field guns.
Show answer
Correct answer: A. Diesel-electric submarines.

Project 75 India, or P-75I, is the Indian Navy's plan to build six advanced conventional diesel-electric submarines in India. Its key requirement is Air Independent Propulsion, which lets a conventional submarine stay submerged for much longer without surfacing to charge its batteries.

Q915.Indian PolityAsked in: CDS · CDS-II 2023, GKEasy

Which one of the following amendments to the Constitution of India has introduced reservations in education and in public employment for people from the Economically Weaker Sections (EWS) of society ?

  1. A.The Constitution (101st Amendment) Act
  2. B.The Constitution (102nd Amendment) Act
  3. C.The Constitution (122nd Amendment) Act
  4. D.The Constitution (103rd Amendment) Act
Show answer
Correct answer: D. The Constitution (103rd Amendment) Act

The 103rd Amendment Act, 2019 allowed reservation of up to 10 percent for the Economically Weaker Sections in educational institutions and in government jobs.

Q916.GeographyAsked in: CDS · CDS-I 2024, GKMedium

How can one determine the relative humidity on a particular day at a given place?

  1. A.If temperature is given
  2. B.If absolute humidity is given
  3. C.If both temperature and absolute humidity are given
  4. D.If percentage of absolute humidity is given
Show answer
Correct answer: C. If both temperature and absolute humidity are given

Relative humidity compares the water vapour actually present in the air with the most the air could hold at that temperature, so both figures are needed.