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Defence GK Questions 2026

Static GK carries most of the General Knowledge marks in the defence exams, and science carries the largest share of it. In NDA & NA, Physics, Chemistry and General Science are about half of the 400 marks of Part B, and History, the freedom movement and Geography are about 20% each, as per the notice. In the CDS (II) 2026 General Knowledge paper, GK24 counted about 37 science questions, about 20 each on Polity and History, about 15 on Geography and environment and about 10 on the Economy; this count is guidance, not an official break-up. The Army's Agniveer CEE gives 15 of its 50 General Duty questions to General Knowledge and 15 to General Science, which covers cells, the human body, plants and animals and common epidemics. Its GK list names history, culture and geography of India and its neighbours, the Constitution, inventions and discoveries, books and authors, and the Indian Armed Forces. This page holds GK24's topic-wise GK notes and GK questions tagged for NDA, CDS and Agniveer, in English and Hindi: General Science, Indian History, Art and Culture, Indian Polity, Geography, Indian Economy and Static GK. Read one topic at a sitting, then solve its questions and the previous-year questions of your exam to see what stayed with you.

Defence GK Questions with Answers

Q1701.Indian EconomyAsked in: CDS · CDS-II 2023, GKMedium

Consider the following statements regarding poverty in India :

1. While determining poverty line in India, a minimum level of food requirement, clothing, footwear, fuel and light, educational and medical requirements, etc. are determined for subsistence.

2. The accepted average calorie requirement in India is 2400 calories per person per day in rural areas and 2100 calories per person per day in urban areas.

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

Both statements describe the standard method used to draw India's poverty line. A poverty line is the income or spending needed to meet basic needs.

Q1702.General ScienceAsked in: CDS · CDS-I 2024, GKEasy

From which among the following are blood clotting factors released?

  1. A.RBCs
  2. B.Eosinophils
  3. C.Platelets
  4. D.Monocytes
Show answer
Correct answer: C. Platelets

Platelets, or thrombocytes, release the factors that start blood clotting at a wound. Platelets are tiny cell fragments made from large cells called megakaryocytes in the bone marrow; a healthy adult has about 1.5 to 4.5 lakh of them per cubic millimetre of blood.

Q1703.GeographyAsked in: CDS · CDS-II 2024, GKEasy

Consider the following statements with reference to Census in India :

1. The first All India Census was attempted in 1872.

2. From 1881, decennial censuses became a regular feature.

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

The first all-India census was attempted in 1872, and from 1881 a census has been held every ten years. The 1872 count, under Viceroy Lord Mayo, was taken in different regions at different times and did not cover the whole country, so it is called the first, non-synchronous attempt.

Q1704.GeographyAsked in: CDS · CDS-I 2026, GKMedium

Which one among the following statements regarding igneous rock is correct ?

  1. A.When magma cools deep in the Earth's interior, it results in the formation of fine-grained igneous rocks.
  2. B.Basalt is a type of intrusive igneous rock.
  3. C.Most of the minerals of igneous rocks are silicates.
  4. D.Extrusive igneous rocks often undergo lithification.
Show answer
Correct answer: C. Most of the minerals of igneous rocks are silicates.

Magma is mostly molten silicate, so the minerals that crystallise from it, such as feldspar, quartz, mica, pyroxene and olivine, are silicates.

Q1706.General ScienceAsked in: CDS · CDS-II 2016, GKHard

In case of a standard hydrogen electrode

  1. A.absolute electrode potential is not zero
  2. B.absolute electrode potential is zero
  3. C.both absolute and standard electrode potential values are zero
  4. D.electrode potential is zero only at 25 °C
Show answer
Correct answer: A. absolute electrode potential is not zero

The standard hydrogen electrode has a real, non-zero potential; it is only assigned the value zero by convention. The absolute potential of a single electrode cannot be measured, because any measurement needs a second electrode to complete the circuit.

Q1707.Environment & EcologyAsked in: CDS · CDS-I 2017, GKEasy

With regard to 'Project Tiger', which one of the following statements is not correct?

  1. A.It was launched in India in the year 1973.
  2. B.The objective of the Project is to preserve the habitats and tigers therein as natural heritage.
  3. C.The Project emphasized to ensure viable population of tigers in India.
  4. D.There are no Tiger Reserves in north-eastern part of India.
Show answer
Correct answer: D. There are no Tiger Reserves in north-eastern part of India.

This is false: the north-east has several tiger reserves. Manas, Kaziranga, Nameri and Orang in Assam, Namdapha, Pakke (Pakhui) and Kamlang in Arunachal Pradesh, and Dampa in Mizoram are all tiger reserves.

Q1708.Indian EconomyAsked in: CDS · CDS-II 2017, GKEasy

The monetary policy in India uses which of the following tools?

1. Bank rate

2. Open market operations

3. Public debt

4. Public revenue

Select the correct answer using the code given below.

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

Bank rate and open market operations are instruments of the Reserve Bank's monetary policy; public debt and public revenue belong to fiscal policy.

Q1710.GeographyAsked in: CDS · CDS-II 2019, GKEasy

What is Inter-cropping?

  1. A.It is the time period between two cropping seasons.
  2. B.It is growing of two or more crops in random mixture.
  3. C.It is growing of two or more crops in definite row patterns.
  4. D.It is growing of different crops on a piece of land in a pre-planned succession.
Show answer
Correct answer: C. It is growing of two or more crops in definite row patterns.

In inter-cropping the crops share a field at the same time but stand in planned rows. A common pattern is one row of one crop after a set number of rows of another, for example soyabean with maize, or pearl millet (bajra) with cowpea (lobia).

Q1712.Indian EconomyAsked in: CDS · CDS-II 2021, GKMedium

Following the Constitution (One Hundred and First Amendment) Act, 2016, the Parliament of India enacted quite a few GST Acts in the year 2017. Which one of the following does not fall in this category ?

  1. A.The Central Goods and Services Tax Act
  2. B.The Integrated Goods and Services Tax Act
  3. C.The Goods and Services Tax (Compensation to States) Acts
  4. D.The State Goods and Services Tax Act
Show answer
Correct answer: D. The State Goods and Services Tax Act

SGST Acts are passed by each State Legislature, not by Parliament. The 101st Amendment, 2016 added Article 246A, which gives both Parliament and the State Legislatures the power to make laws on GST, and Article 279A, which created the GST Council.

Q1713.Indian HistoryAsked in: CDS · CDS-I 2022, GKMedium

Who among the following belonged to Serampore Mission ?

1. William Carey

2. Joshua Marshman

3. William Ward

4. David Hare

Select the correct answer using the code given below :

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

William Carey, Joshua Marshman and William Ward, the 'Serampore Trio', ran the Baptist mission at Serampore. Carey reached Bengal in 1793, and Marshman and Ward joined him in 1799.

Q1715.General ScienceAsked in: CDS · CDS-I 2024, GKEasy

The causal organism of dengue fever is a mosquito-borne virus which belongs to which one among the following categories?

  1. A.Flavi-ribo virus
  2. B.Adenovirus
  3. C.Vaccinia virus
  4. D.Nipah virus
Show answer
Correct answer: A. Flavi-ribo virus

Dengue virus is a flavivirus, an RNA (ribonucleic acid) virus of the family Flaviviridae. Dengue is spread mainly by the bite of the female Aedes aegypti mosquito, which breeds in clean, stagnant water and bites during the day.

Q1717.GeographyAsked in: CDS · CDS-II 2025, GKHard

Consider the following statements with reference to Mid-latitude deciduous forests :

1. Mid-latitude deciduous forests consist largely of trees that drop their leaves during the summer season.

2. Mid-latitude deciduous forests are native to eastern North America and Western Europe.

3. In Asia, the Mid-latitude deciduous forests occur as a belt between the boreal forest to the north and steppe lands to the south.

4. Beech, Hickory and Walnut are common examples of trees found in Mid-latitude deciduous forests.

Which of the statements given above are correct ?

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

Only statement 1 is wrong: these trees shed their leaves in winter, not in summer. Mid-latitude (temperate) deciduous forests grow where summers are warm and moist and winters are cold.

Q1718.GeographyAsked in: CDS · CDS-I 2026, GKMedium

Which of the following pairs of theories about origin of the Earth and their propounders is/are correctly matched?

1. Gaseous Hypothesis : Kant

2. Binary Star Hypothesis : Russell

3. Planetesimal Hypothesis : Chamberlin

Select the answer using the codes given below :

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

Each theory is paired with the scientist who put it forward. Immanuel Kant proposed the Gaseous Hypothesis in 1755: a slowly rotating cloud of hot gas condensed to form the Sun and the planets.

Q1719.General ScienceAsked in: CDS · CDS-II 2026, GKEasy

Which one among the following is the primary reason for asking persons undergoing X-ray imaging to remove metallic objects?

  1. A.Metallic objects can absorb/reflect X-ray resulting in dark/bright spot
  2. B.Metallic objects can melt causing serious skin damage
  3. C.X-ray can create sparks on hitting the metallic objects
  4. D.X-ray can damage the metallic objects by altering their composition
Show answer
Correct answer: A. Metallic objects can absorb/reflect X-ray resulting in dark/bright spot

Metal blocks X-rays far more strongly than body tissue, so it spoils the picture. An X-ray image is a shadow picture.

GK Questions for sub-exams