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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

Q3421.General ScienceAsked in: CDS · CDS-I 2026, GKMedium

Which one among the following statements regarding the electrical resistivity of a conducting wire is correct?

  1. A.The resistivity of the conductor increases if the length of the wire is increased.
  2. B.The resistivity of the conductor decreases if the length of the wire is increased.
  3. C.The resistivity of the conductor remains the same if the length of the wire is changed.
  4. D.The resistivity of the conductor increases if the cross-sectional area of the wire is increased.
Show answer
Correct answer: C. The resistivity of the conductor remains the same if the length of the wire is changed.

Resistivity is a property of the material itself, so it stays the same when the length of the wire is changed.

Q3422.Indian PolityAsked in: CDS · CDS-II 2026, GKHard

Which of the following statements with respect to the Ordinance promulgated under Article 213 of the Constitution of India is/are correct?

1. It shall be laid before the Legislative Assembly of the State, or where there is a Legislative Council in the State, before both the Houses

2. It shall cease to operate at the expiration of two months from the reassembly of the Legislature

3. It may be withdrawn at any time by the Governor

Select the answer using the code given below:

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

Article 213 requires a Governor's ordinance to be laid before the state legislature and lets the Governor withdraw it at any time, but its life after reassembly is six weeks, not two months.

Q3423.General ScienceAsked in: UPSC Civil Services · CSE Prelims 2024, GS Paper IMedium

Consider the following statements :

Statement-I : Giant stars live much longer than dwarf stars.

Statement-II : Compared to dwarf stars, giant stars have a greater rate of nuclear reactions.

Which one of the following is correct in respect of the above statements?

  1. A.Both Statement-I and Statement-II are correct and Statement-II explains Statement-I
  2. B.Both Statement-I and Statement-II are correct, but Statement-II does not explain Statement-I
  3. C.Statement-I is correct, but Statement-II is incorrect
  4. D.Statement-I is incorrect, but Statement-II is correct
Show answer
Correct answer: D. Statement-I is incorrect, but Statement-II is correct

Massive giant stars burn their fuel so fast that they live much shorter lives than dwarf stars, so Statement I is false and Statement II is true.

Q3426.Environment & EcologyAsked in: UPSC Civil Services · CSE Prelims 2019, GS Paper IMedium

Consider the following statements :

1. Asiatic lion is naturally found in India only.

2. Double-humped camel is naturally found in India only.

3. One-horned rhinoceros is naturally found in India only.

Which of the statements given above is/are correct?

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

Only the Asiatic lion survives in the wild in India alone, in the Gir landscape of Gujarat. The Asiatic lion once ranged from West Asia to central India, but today its only wild population lives in and around Gir National Park and the nearby districts of Saurashtra in Gujarat.

Q3429.General ScienceAsked in: UPSC Civil Services · CSE Prelims 2024, GS Paper IMedium

With reference to radioisotope thermoelectric generators (RTGs), consider the following statements :

1. RTGs are miniature fission reactors.

2. RTGs are used for powering the onboard systems of spacecrafts.

3. RTGs can use Plutonium-238, which is a by-product of weapons development.

Which of the statements given above are correct ?

  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: B. 2 and 3 only

RTGs power spacecraft using heat from the natural decay of plutonium-238; they are not reactors and involve no fission. In an RTG, a radioactive isotope gives off heat as it decays on its own.

Q3430.GeographyAsked in: UPSC Civil Services · CSE Prelims 2019, GS Paper IMedium

Which one of the following groups of plants was domesticated in the 'New World' and introduced into the 'Old World'?

  1. A.Tobacco, cocoa and rubber
  2. B.Tobacco, cotton and rubber
  3. C.Cotton, coffee and sugarcane
  4. D.Rubber, coffee and wheat
Show answer
Correct answer: A. Tobacco, cocoa and rubber

Tobacco, cocoa and rubber all come from the Americas and spread to Asia, Africa and Europe after Columbus. The exchange of plants and animals between the Americas (New World) and Afro-Eurasia (Old World) after 1492 is called the Columbian Exchange.

Q3431.GeographyAsked in: UPSC Civil Services · CSE Prelims 2019, GS Paper IEasy

On 21st June, the Sun

  1. A.does not set below the horizon at the Arctic Circle
  2. B.does not set below the horizon at Antarctic Circle
  3. C.shines vertically overhead at noon on the Equator
  4. D.shines vertically overhead at the Tropic of Capricorn
Show answer
Correct answer: A. does not set below the horizon at the Arctic Circle

21 June is the summer solstice of the Northern Hemisphere, when the North Pole is tilted towards the Sun and the whole Arctic Circle gets 24 hours of daylight.

Q3432.General ScienceAsked in: UPSC Civil Services · CSE Prelims 2024, GS Paper IMedium

Consider the following :

1. Butterflies

2. Fish

3. Frogs

How many of the above have poisonous species among them ?

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

Each of the three groups includes species that carry toxins in their bodies to deter predators. Butterflies: the Monarch butterfly feeds as a caterpillar on milkweed and stores its bitter cardiac glycosides, so birds that eat it fall sick; its bright orange colour is a warning.

Q3433.General ScienceAsked in: UPSC CAPF · CAPF 2021, Paper IEasy

The speed of the wind is measured by

  1. A.wind vane
  2. B.wind rose
  3. C.barometer
  4. D.anemometer
Show answer
Correct answer: D. anemometer

An anemometer measures how fast the wind is blowing; its name comes from the Greek word anemos, meaning wind.

Q3434.GeographyAsked in: UPSC CAPF · CAPF 2023, Paper IEasy

Using the code given below identify the type of farming on the basis of given characteristics : 1. The produce is consumed entirely or mainly by the family who work the land or tend the livestock. 2. If a small surplus is produced, it may be sold or bartered. 3. It is generally small scale and labour intensive with little or no technological input. Code :

  1. A.Extensive farming
  2. B.Intensive farming
  3. C.Subsistence farming
  4. D.Commercial farming
Show answer
Correct answer: C. Subsistence farming

All three features describe farming done mainly to feed the farmer's own family, with only a small surplus for sale or barter.

Q3436.General ScienceAsked in: UPSC CAPF · CAPF 2019, Paper IEasy

Brilliance of diamond is due to

  1. A.interference of light
  2. B.diffraction of light
  3. C.polarization of light
  4. D.total internal reflection of light
Show answer
Correct answer: D. total internal reflection of light

Light that enters a cut diamond is reflected again and again inside it before it escapes, which makes the stone sparkle.

Q3437.GeographyAsked in: UPSC CAPF · CAPF 2021, Paper IEasy

In order to find out the absolute location of a place on the map, which of the following will be required?

  1. A.Latitude of the place alone
  2. B.Longitude of the place alone
  3. C.Both latitude and longitude of the place
  4. D.Neither latitude nor longitude of the place
Show answer
Correct answer: C. Both latitude and longitude of the place

The exact, absolute position of any point on Earth is fixed only where its line of latitude crosses its line of longitude.

Q3438.GeographyAsked in: UPSC CAPF · CAPF 2023, Paper IEasy

Which one of the following is the busiest sea route and links two industrially developed regions of the world ?

  1. A.Mediterranean - Indian Ocean sea route
  2. B.The Northern Atlantic sea route
  3. C.Cape of Good Hope sea route
  4. D.The North Pacific sea route
Show answer
Correct answer: B. The Northern Atlantic sea route

It joins north-eastern North America with Western Europe, two of the most industrialised regions on Earth, and carries the heaviest traffic of any ocean route.

Q3439.Indian PolityAsked in: UPSC CAPF · CAPF 2025, Paper IHard

Which one among the following statements about the Department of Defence (DoD) is not correct?

  1. A.It is headed by the Defence Secretary.
  2. B.It deals with defence policy and planning.
  3. C.It facilitates the restructuring of military commands for optimal utilization of resources.
  4. D.It is responsible for defence cooperation with foreign countries.
Show answer
Correct answer: C. It facilitates the restructuring of military commands for optimal utilization of resources.

Restructuring military commands for the best use of resources, including joint and theatre commands, is a task of the Department of Military Affairs, not of the Department of Defence.

Q3440.General ScienceAsked in: UPSC CAPF · CAPF 2019, Paper IEasy

Which one of the following is NOT an electromagnetic wave ?

  1. A.Light wave
  2. B.Radio wave
  3. C.Sound wave
  4. D.Micro wave
Show answer
Correct answer: C. Sound wave

Sound is a mechanical wave that needs a medium to travel, while the other three are electromagnetic waves. Sound travels as a longitudinal wave of compressions and rarefactions in air, water or solids, which is why it cannot pass through a vacuum.