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12 questions

  • 2026 · Question 43 · Defence Technology

    Which of the following statements with regard to stealth technology is/are correct ? 1. Stealth objects have a very small radar cross-section and are coated with Radar Absorbing Material. 2. Stealth objects can be detected using specific frequencies. 3. Stealth objects are coated with metamaterials to increase the scattering of electromagnetic radiation. Select the answer using the code given below :

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    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
  • 2026 · Question 47 · Defence Technology

    Which of the following statements with regard to drone swarms is/are correct ? 1. They use Terahertz band of frequency to communicate with the command centre. 2. Individual drones in the swarm can communicate with other drones in the swarm. 3. GPS Spoofing is a commonly used technique to counter drone swarm attack. Select the answer using the code given below :

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    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
  • 2026 · Question 80 · Defence Technology

    The Bureau of Indian Standard (BIS) recently introduced a national standard to test and assess bomb disposal system. Which of the following statements with regard to this system is/are correct ? 1. The new standard is known as IS 19445 : 2025. 2. It will improve interoperability of equipment across agencies. 3. It was developed by TBRL, DRDO in collaboration with the 30th Central Scientific Research Institute, Russia. Select the answer using the code given below :

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    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
  • 2025 · Question 42 · Defence Technology

    With reference to Unmanned Aerial Vehicles (UAVs), consider the following statements : I. All types of UAVs can do vertical landing. II. All types of UAVs can do automated hovering. III. All types of UAVs can use battery only as a source of power supply. How many of the statements given above are correct?

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    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
  • 2025 · Question 46 · Defence Technology

    What is the common characteristic of the chemical substances generally known as CL-20, HMX and LLM-105, which are sometimes talked about in media?

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    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
  • 2025 · Question 84 · Defence Technology

    With reference to India’s defence, consider the following pairs : Aircraft type | Description I. | Dornier-228 | Maritime patrol aircraft II. | IL-76 | Supersonic combat aircraft III. | C-17 Globemaster III | Military transport aircraft How many of the pairs given above are correctly matched?

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    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
  • 2023 · Question 58 · Defence Technology

    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?

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    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)
  • 2022 · Question 34 · Defence Technology

    Which one of the following statements best reflects the idea behind the “Fractional Orbital Bombardment System” often talked about in media ?

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    Source: UPSC, Civil Services (Preliminary), General Studies Paper I (opens in a new tab)