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GK24

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

Q3421.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.

Q3422.Indian EconomyAsked in: CDS · CDS-I 2024, GKMedium

Consider the following statements regarding instruments of monetary policy :

1. Standing deposit facility (SDF) rate was introduced in April 2022.

2. SDF rate replaced fixed reverse repo rate as the floor of the LAF corridor.

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 RBI brought in the Standing Deposit Facility in April 2022 and made its rate the new floor of the policy corridor.

Q3424.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.

Q3425.Computer AwarenessAsked in: CDS · CDS-I 2026, GKEasy

Which one of the following statements is not correct with regard to the UNIX operating system ?

  1. A.It is written in C.
  2. B.It is portable to a variety of computers.
  3. C.It is a multi-user operating system.
  4. D.It cannot be time-shared by several users.
Show answer
Correct answer: D. It cannot be time-shared by several users.

UNIX was designed from the start as a time-sharing system, so this statement is false. UNIX was developed at Bell Labs from 1969 by Ken Thompson and Dennis Ritchie.

Q3426.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.

Q3427.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.

Q3428.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.

Q3429.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.

Q3430.General ScienceAsked in: CDS · CDS-II 2018, GKMedium

Which one of the following denotes a 'true' fruit?

  1. A.When only the thalamus of the flower grows and develops into a fruit
  2. B.When only the receptacle of the flower develops into a fruit
  3. C.When fruit originates only from the calyx of a flower
  4. D.When only the ovary of the flower grows into a fruit
Show answer
Correct answer: D. When only the ovary of the flower grows into a fruit

A true fruit is a ripened ovary and nothing else. After fertilisation, the ovary of a flower develops into the fruit, its wall becomes the pericarp and the ovules inside become seeds.

Q3431.Indian EconomyAsked in: CDS · CDS-II 2019, GKEasy

The working of the price mechanism in a free-market economy refers to which one of the following?

  1. A.The interplay of the forces of demand and supply
  2. B.Determination of the inflation rate in the economy
  3. C.Determination of the economy's propensity to consume
  4. D.Determination of the economy's full employment output
Show answer
Correct answer: A. The interplay of the forces of demand and supply

In a free market, prices are set by buyers and sellers, not by the government. The price mechanism is how a market economy answers the basic questions of what to produce, how much and for whom.

Q3433.Indian HistoryAsked in: CDS · CDS-I 2021, GKMedium

Which one of the following statements with regard to ryotwari settlement is not correct ?

  1. A.In southern and western India, the ryotwari settlement was adopted.
  2. B.Ryotwari was in principle a direct contract between the ryot and the state.
  3. C.It means a tax contract valid for usually 30 years.
  4. D.In principle, it strengthened the former elite, the zamindars and weakened the peasantry.
Show answer
Correct answer: D. In principle, it strengthened the former elite, the zamindars and weakened the peasantry.

The ryotwari system was meant to do the opposite: it bypassed the zamindars and dealt with the peasant directly. The ryotwari settlement was worked out by Alexander Read and Thomas Munro and introduced in the Madras Presidency in 1820, and later extended to the Bombay Presidency.

Q3434.Indian PolityAsked in: CDS · CDS-II 2021, GKMedium

Which one of the following statements is not correct?

  1. A.Allahabad High Court has a Bench at Lucknow.
  2. B.Madhya Pradesh High Court has a Bench at Gwalior.
  3. C.Rajasthan High Court is located at Jodhpur.
  4. D.Guwahati High Court has no Bench.
Show answer
Correct answer: D. Guwahati High Court has no Bench.

This statement is wrong, because the Gauhati High Court has permanent benches outside Guwahati. The Gauhati High Court at Guwahati is the common High Court for Assam, Nagaland, Mizoram and Arunachal Pradesh.

Q3436.Indian HistoryAsked in: CDS · CDS-I 2023, GKEasy

Which one of the following pairs denoting various forms of 'Bhakti' is not correctly matched?

  1. A.Saguna : Belief in Gods with attributes
  2. B.Nirguna : Belief in Gods without attributes
  3. C.Alvars : Believed in devotion of Shakti
  4. D.Nayanars : Believed in devotion of Shiva
Show answer
Correct answer: C. Alvars : Believed in devotion of Shakti

The Alvars were devotees of Vishnu, not of the goddess Shakti, so this pair is wrong. The Bhakti movement began in Tamil Nadu between the sixth and ninth centuries with two groups of poet-saints.

Q3437.Science & TechnologyAsked in: CDS · CDS-II 2024, GKEasy

Mission Shakti (DRDO) of India is related to which one among the following ?

  1. A.Launch of multiple satellites using a single rocket
  2. B.Launch of heavy satellites
  3. C.Use of high power rockets in launching of satellites
  4. D.Use of rocket to destroy an orbiting satellite
Show answer
Correct answer: D. Use of rocket to destroy an orbiting satellite

Mission Shakti was India's first anti-satellite (ASAT) missile test. On 27 March 2019 DRDO fired a ground-launched interceptor from Dr. A.P.J.

Q3438.General ScienceAsked in: CDS · CDS-I 2025, GKMedium

A metallic sphere of mass 1 kg and volume 2 × 10⁻⁴ m³ is completely immersed in water. The buoyant force exerted by water on the sphere is : (Given : density of water = 1000 kg/m³, g = 10 m/s²)

  1. A.0.5 N
  2. B.1.5 N
  3. C.2 N
  4. D.2.5 N
Show answer
Correct answer: C. 2 N

By Archimedes' principle, the buoyant force equals the weight of the water displaced by the sphere. A fully immersed body displaces its own volume of water, here 2 × 10⁻⁴ m³.

Q3439.Indian HistoryAsked in: CDS · CDS-II 2025, GKHard

Consider the following statements about the Bengal countryside at the time of the Permanent Settlement :

1. The zamindars' troops were disbanded.

2. Within the villages, the power of jotedars was more effective than that of zamindars.

3. The East India Company made a rule that the property of women would not be taken over.

4. Adhiyars were sharecroppers on the land owned by bargadars.

Which of the statements given above are correct ?

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

Statement 4 is wrong because adhiyars and bargadars were both sharecroppers who worked the land of the jotedars. After the Permanent Settlement of 1793 by Lord Cornwallis, the Company tried to tame the zamindars: their troops were disbanded, their customs duties abolished and their courts placed under Company collectors.

Q3440.Computer AwarenessAsked in: CDS · CDS-I 2026, GKMedium

Which one of the following is not a characteristic of flash memory ?

  1. A.It is an ultraviolet erasable programmable ROM.
  2. B.It is an electrically erasable programmable ROM.
  3. C.It retains data without power.
  4. D.It is a non-volatile memory.
Show answer
Correct answer: A. It is an ultraviolet erasable programmable ROM.

Flash memory is erased electrically, not by ultraviolet light, so this is not one of its features. Flash memory is a type of EEPROM (electrically erasable programmable read-only memory) that can erase and rewrite whole blocks at a time, which makes it fast.

GK Questions for sub-exams