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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

Q2701.General ScienceAsked in: UPSC Civil Services · CSE Prelims 2023, GS Paper IMedium

Consider the following pairs :

Objects in space : Description

1. Cepheids : Giant clouds of dust and gas in space

2. Nebulae : Stars which brighten and dim periodically

3. Pulsars : Neutron stars that are formed when massive stars run out of fuel and collapse

How many of the above pairs are correctly matched?

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

Only pair 3 is right; the descriptions of Cepheids and nebulae have been swapped. Cepheid variables are pulsating stars that brighten and dim on a regular cycle.

Q2702.General ScienceAsked in: UPSC Civil Services · CSE Prelims 2017, GS Paper IEasy

The terms 'Event Horizon', 'Singularity', 'String Theory' and 'Standard Model' are sometimes seen in the news in the context of

  1. A.Observation and understanding of the Universe
  2. B.Study of the solar and the lunar eclipses
  3. C.Placing satellites in the orbit of the Earth
  4. D.Origin and evolution of living organisms on the Earth
Show answer
Correct answer: A. Observation and understanding of the Universe

All four terms come from physics and cosmology, the study of how the universe and its matter work. An event horizon is the boundary around a black hole beyond which nothing, not even light, can escape.

Q2703.GeographyAsked in: UPSC Civil Services · CSE Prelims 2025, GS Paper IEasy

India is one of the founding members of the International North-South Transport Corridor (INSTC), a multimodal transportation corridor, which will connect

  1. A.India to Central Asia to Europe via Iran
  2. B.India to Central Asia via China
  3. C.India to South-East Asia through Bangladesh and Myanmar
  4. D.India to Europe through Azerbaijan
Show answer
Correct answer: A. India to Central Asia to Europe via Iran

The INSTC links Indian ports by sea to Iran and then by rail and road northwards to Central Asia, Russia and on to Europe.

Q2704.GeographyAsked in: UPSC CAPF · CAPF 2017, Paper IMedium

Which one of the following pairs of Island and Sea/Ocean is NOT correctly matched?

  1. A.Cyprus : Mediterranean Sea
  2. B.Falkland : Atlantic Ocean
  3. C.Chagos : North Pacific Ocean
  4. D.Islas Cocos : Indian Ocean
Show answer
Correct answer: C. Chagos : North Pacific Ocean

The Chagos Archipelago lies in the central Indian Ocean, not in the North Pacific. The Chagos Islands lie south of the Maldives, roughly 500 km away, and include Diego Garcia, the site of a major military base.

Q2706.GeographyAsked in: UPSC CAPF · CAPF 2021, Paper IMedium

Which of the following statements about tropical rain forests are correct?

1. The soils of tropical rain forests are quite infertile.

2. The vegetation is evergreen, enabling photosynthesis to take place year around.

3. They have been described as 'deserts covered by trees'.

4. They are most productive land-based ecosystem.

Select the correct answer using the code given below.

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

All four statements are true of tropical rain forests. These forests grow near the Equator, in the Amazon, the Congo basin and South-East Asia, with heavy rain and high heat all year.

Q2709.Indian HistoryAsked in: CDS · CDS-I 2020, GKMedium

Which one of the following Acts reserved seats for women in Legislatures in accordance with the allocation of seats for different communities?

  1. A.The Government of India Act, 1858
  2. B.The Indian Councils Act, 1909
  3. C.The Government of India Act, 1919
  4. D.The Government of India Act, 1935
Show answer
Correct answer: D. The Government of India Act, 1935

Following the Communal Award of 1932, this Act reserved seats for women in the legislatures and divided them among the communities.

Q2710.Indian HistoryAsked in: CDS · CDS-I 2021, GKHard

Which one of the following statements about the British Indian Medical Service (IMS) is not correct ?

  1. A.IMS began in 1764.
  2. B.It recruited health professionals by means of a competitive examination.
  3. C.Indians were never admitted to IMS.
  4. D.The IMS was at first meant to look after the troops.
Show answer
Correct answer: C. Indians were never admitted to IMS.

This is false: Indians entered the service through its open examination from the 1850s. The medical service of the East India Company began in Bengal in 1764, and the separate presidency services were later joined into a single Indian Medical Service in 1896.

Q2711.GeographyAsked in: CDS · CDS-I 2022, GKEasy

Where are the Bermuda Islands located ?

  1. A.Caribbean Sea
  2. B.North Atlantic Ocean
  3. C.Gulf of Mexico
  4. D.Mediterranean Sea
Show answer
Correct answer: B. North Atlantic Ocean

Bermuda is a small group of islands in the western North Atlantic, about 1,000 km east of the coast of North Carolina in the USA.

Q2714.General ScienceAsked in: CDS · CDS-II 2023, GKMedium

A charged particle moves through a magnetic field B with a velocity v. Which one of the following statements is true for the force (F) experienced by the particle?

  1. A.F is maximum when v and B are parallel to each other.
  2. B.F is maximum when v and B are anti-parallel to each other.
  3. C.F is maximum when v and B are perpendicular to each other.
  4. D.The force F is independent of the angle between v and B.
Show answer
Correct answer: C. F is maximum when v and B are perpendicular to each other.

The magnetic force depends on the sine of the angle between velocity and field, and sin 90° is the largest value.

Q2716.Indian HistoryAsked in: CDS · CDS-II 2025, GKMedium

Which of the following statements about the Ghadar Movement is/are correct ?

1. The Ghadar Movement began in 1913 in San Francisco.

2. The movement was founded by Sohan Singh Bhakna.

3. The Ghadar Movement took its name from the weekly Ghadar brought out in several Indian languages.

Select the answer using the code given below :

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

All three statements describe the Ghadar Movement correctly. The Ghadar Party was formed in 1913 on the Pacific coast of the USA by Indian immigrants, mostly Punjabi Sikh farmers and workers, with its headquarters, the Yugantar Ashram, in San Francisco.

Q2717.GeographyAsked in: CDS · CDS-II 2016, GKHard

According to Census 2011, which one of the following is the correct sequence of States in decreasing order of their total size of population?

  1. A.Kerala, Jharkhand, Assam, Punjab
  2. B.Jharkhand, Kerala, Assam, Punjab
  3. C.Kerala, Jharkhand, Punjab, Assam
  4. D.Jharkhand, Kerala, Punjab, Assam
Show answer
Correct answer: A. Kerala, Jharkhand, Assam, Punjab

Kerala was narrowly ahead of Jharkhand in Census 2011, and Assam was clearly ahead of Punjab. Census 2011 counted about 3.34 crore people in Kerala, 3.30 crore in Jharkhand, 3.12 crore in Assam and 2.77 crore in Punjab.

Q2718.General ScienceAsked in: CDS · CDS-I 2017, GKEasy

Which one of the following is the most characteristic property of an element?

  1. A.Density
  2. B.Boiling point
  3. C.Mass number
  4. D.Atomic number
Show answer
Correct answer: D. Atomic number

The number of protons in the nucleus defines an element, and no two elements share it. The atomic number (Z) is the number of protons in an atom's nucleus, and in a neutral atom it also equals the number of electrons, which decide chemical behaviour.

Q2719.General ScienceAsked in: CDS · CDS-II 2017, GKHard

After using for some time, big transformers get heated up. This is due to the fact that

1. current produces heat in the transformers

2. hysteresis loss occurs in the transformers

3. liquid used for cooling gets heated

Select the correct answer using the code given below.

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

A transformer heats up because of energy lost inside it: heat from current in the windings and hysteresis loss in the iron core.

Q2720.General ScienceAsked in: CDS · CDS-I 2018, GKEasy

Statement I : A person may suffer from tuberculosis if she/he frequently visits crowded place.

Statement II : Bacteria of tuberculosis spread through droplets by sneezing or coughing.

  1. A.Both the statements are individually true and Statement II is the correct explanation of Statement I
  2. B.Both the statements are individually true but Statement II is not the correct explanation of Statement I
  3. C.Statement I is true but Statement II is false
  4. D.Statement I is false but Statement II is true
Show answer
Correct answer: A. Both the statements are individually true and Statement II is the correct explanation of Statement I

Both statements are true, and the airborne spread of the TB bacterium is exactly why crowded places raise the risk.