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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

Q2621.Science & TechnologyAsked in: UPSC Civil Services · CSE Prelims 2023, GS Paper IMedium

Consider the following statements :

1. Ballistic missiles are jet-propelled at subsonic speeds throughout their flights, while cruise missiles are rocket-powered only in the initial phase of flight.

2. Agni-V is a medium-range supersonic cruise missile, while BrahMos is a solid-fuelled intercontinental ballistic missile.

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: D. Neither 1 nor 2

Both statements swap the features of ballistic and cruise missiles. A ballistic missile is rocket-powered only in the first, boost phase; after that it follows a high, curved, mostly unpowered path, re-entering the atmosphere at very high speed.

Q2622.General ScienceAsked in: UPSC CAPF · CAPF 2017, Paper IMedium

The mass number of an element is NOT changed when it emits

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

Neither beta nor gamma emission changes the total number of protons and neutrons in a nucleus, so the mass number stays the same.

Q2623.Indian HistoryAsked in: UPSC CAPF · CAPF 2018, Paper IMedium

Which of the following statements about Harappa Civilization is/are correct?

1. There is the extraordinary uniformity in artefacts as evident in pottery, seals, bricks and weights.

2. The late Harappa sites also maintained the same construction techniques as were used in mature Harappa sites.

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 mature Harappan phase shows a striking uniformity in its artefacts, but that uniformity broke down in the late Harappan phase.

Q2624.General ScienceAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

Which one among the following statements about facilitated transport in plants is correct?

  1. A.All passive transports are types of facilitated transport.
  2. B.Facilitated transport is an example of active transport.
  3. C.Water moves across plasma membrane by active transport.
  4. D.Facilitated transport requires assistance of carrier proteins.
Show answer
Correct answer: D. Facilitated transport requires assistance of carrier proteins.

In facilitated transport, molecules cross the membrane with the help of membrane proteins, while still moving down their concentration gradient.

Q2625.GeographyAsked in: UPSC CAPF · CAPF 2026, Paper IEasy

Consider the following statements about a cloud form :

1. These are made up of ice crystals rather than droplets of water.

2. They are thin, stringy, white clouds that trail like feathers across the sky.

3. These clouds are formed at very high altitudes - normally between 6000 metres and 10000 metres.

Which one among the following cloud forms is described above?

  1. A.Cirrus
  2. B.Stratus
  3. C.Cumulus
  4. D.Nimbus
Show answer
Correct answer: A. Cirrus

Cirrus clouds are thin, feathery clouds made of ice crystals that form high in the troposphere. At heights of roughly 6,000 to 10,000 metres the air is far below freezing, so cirrus clouds hold ice crystals instead of water droplets.

Q2626.General ScienceAsked in: UPSC CAPF · CAPF 2017, Paper IMedium

Who among the following has coined the term 'Quark', the fundamental particles that make up protons and neutrons in an atomic nucleus ?

  1. A.Richard Feynman
  2. B.Murray Gell-Mann
  3. C.Albert Einstein
  4. D.Niels Bohr
Show answer
Correct answer: B. Murray Gell-Mann

The American physicist Murray Gell-Mann proposed quarks in 1964 and gave them their name. Gell-Mann, and independently George Zweig, suggested that protons, neutrons and other such particles are built from smaller units.

Q2627.GeographyAsked in: UPSC CAPF · CAPF 2023, Paper IHard

Consider the following statements about Barchans :

1. These landforms are found in Thar desert in India.

2. The windward side has concave slope with maximum height at the centre.

3. Two ends of the barchan are called horns.

Which of the statements given above is/are correct ?

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

Barchans are common in the Thar and their two tips are called horns, but the windward side of a barchan is a gentle convex slope, not a concave one.

Q2630.General ScienceAsked in: UPSC CAPF · CAPF 2017, Paper IEasy

Which one of the following is the chemical name of heavy water?

  1. A.Hydrogen oxide
  2. B.Deuterium dioxide
  3. C.Deuterium oxide
  4. D.Heavy hydrogen oxide
Show answer
Correct answer: C. Deuterium oxide

Heavy water is D₂O: two atoms of deuterium joined to one atom of oxygen. Deuterium is the isotope of hydrogen with one proton and one neutron in its nucleus, so it is about twice as heavy as ordinary hydrogen.

Q2631.GeographyAsked in: UPSC CAPF · CAPF 2025, Paper IMedium

The cities of Hiroshima and Nagasaki are situated on which of the following islands?

  1. A.Kyushu and Shikoku respectively
  2. B.Kyushu and Honshu respectively
  3. C.Honshu and Kyushu respectively
  4. D.Honshu and Shikoku respectively
Show answer
Correct answer: C. Honshu and Kyushu respectively

Hiroshima lies in western Honshu, and Nagasaki lies on the west coast of Kyushu. Japan has four main islands: Hokkaido in the north, Honshu, the largest, in the middle, and Shikoku and Kyushu in the south-west.

Q2632.General ScienceAsked in: UPSC CAPF · CAPF 2017, Paper IEasy

Liquid water is denser than ice due to

  1. A.higher surface tension
  2. B.hydrogen bonding
  3. C.van der Waals forces
  4. D.covalent bonding
Show answer
Correct answer: B. hydrogen bonding

Hydrogen bonds lock the molecules of ice into an open cage, so ice takes up more space than the same mass of liquid water.

Q2633.GeographyAsked in: UPSC CAPF · CAPF 2024, Paper IEasy

Which one among the following statements with regard to India's maritime initiative, SAGAR, is correct?

  1. A.It is a platform for conducting joint naval exercises under QUAD
  2. B.It aimed at promoting maritime cooperation with countries of the Indian Ocean Region
  3. C.It is an alliance of India, USA and Japan to provide safety to merchant ships passing through the Indian Ocean Region
  4. D.It is the name given to India's participation in the Contact Group on Piracy set up by the UN Security Council
Show answer
Correct answer: B. It aimed at promoting maritime cooperation with countries of the Indian Ocean Region

SAGAR stands for Security and Growth for All in the Region, India's vision for working with its ocean neighbours. Prime Minister Narendra Modi set out SAGAR in Mauritius in March 2015.

Q2634.GeographyAsked in: UPSC CAPF · CAPF 2026, Paper IMedium

Consider the following statements :

1. A great circle is the largest possible circle that can be drawn on the surface of the sphere.

2. Every great circle divides the Earth into equal halves.

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

A great circle is a circle on a sphere whose centre is the centre of the sphere itself, so both statements describe it correctly.

Q2635.GeographyAsked in: NDA · NDA-I 2018, GATMedium

Consider the following statements about Roaring Forties : 1. They are strong Westerly winds found in the oceans of Southern Hemisphere. 2. The strong east to west air currents are caused by the combination of air being displaced from the Equator towards the South Pole and the earth's rotation and abundance of landmasses to serve as wind breaks. 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: A. 1 only

The Roaring Forties are strong westerly winds of the Southern Hemisphere, but statement 2 is wrong on two counts: they blow from west to east, and they are strong because there is very little land to slow them down.

Q2636.General ScienceAsked in: NDA · NDA-I 2019, GATEasy

Which one of the following can charge an insulator?

  1. A.Current electricity
  2. B.Static electricity
  3. C.Magnetic field
  4. D.Gravitational field
Show answer
Correct answer: B. Static electricity

An insulator is charged by friction: rubbing transfers electrons from one surface to another, and because electrons cannot move through an insulator, the charge stays where it is as static electricity.

Q2638.General ScienceAsked in: NDA · NDA-I 2021, GATEasy

A glass prism splits white light into different colours. This phenomenon is called dispersion of light by prism. Which one of the following statements is correct?

  1. A.Red light will deviate the most and it is because of the reflection of light.
  2. B.Violet light will deviate the most and it is because of the refraction of light.
  3. C.Red light will deviate the most and it is because of the refraction of light.
  4. D.Violet light will deviate the most and it is because of the reflection of light.
Show answer
Correct answer: B. Violet light will deviate the most and it is because of the refraction of light.

In glass, violet light has the shortest wavelength and the highest refractive index, so it bends the most; dispersion is a result of refraction.

Q2639.Indian HistoryAsked in: NDA · NDA-II 2021, GATMedium

Which of the following statements about Mahatma Gandhi's anti-untouchability campaign is/are correct? 1. The All India Harijan Sevak Sangh was founded for this purpose. 2. The campaign was to root out untouchability, since it did not enjoy the sanction of the Hindu shastras. 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: C. Both 1 and 2

Gandhi set up the All India Harijan Sevak Sangh in 1932 to fight untouchability, and he argued that untouchability had no sanction in the Hindu shastras.