Science & Tech

3 questions

• 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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  (a)Only one(b)Only two(c)All the three(d)None

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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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  (a)These are alternatives to hydrofluorocarbon refrigerants(b)These are explosives in military weapons(c)These are high-energy fuels for cruise missiles(d)These are fuels for rocket propulsion

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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?

  Choose your answer

  (a)Only one(b)Only two(c)All the three(d)None

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