UPSC Science & Technology

21. Which among the following statements is/are correct about Lee’s Hypothesis of Migration?

  1. He was the first to postulate, laws of migration in 1885.
  2. Lee postulated that the magnitude of migration depends upon the degree of repulsiveness and attractiveness of push and pull factors respectively.

Select the correct code from the options given below:

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 & 2

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22. Which of the following statements are correct regarding BSE-GREENEX?

  1. It involves G-Trade Carbon Ex Ratings Services Private Limited.
  2. It is an initiative of the Bombay Stock Exchange.

Select the correct option from the codes given below:

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

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23. Consider the following statements regarding the Mutual Assured Destruction (MAD) strategy:

  1. It is predicated on the concept of deterrence, wherein the threat of total destruction prevents adversaries from initiating a nuclear attack.
  2. The term “Mutual Assured Destruction” (MAD) was coined by Donald Brennan, a strategist associated with the Hudson Institute.

Which of the above statements is/are correct?

[A] Only 1
[B] Both 1 and 2
[C] Only 2
[D] Neither 1 nor 2

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24. Which of the following Articulated All-Terrain Vehicles (AATVs) is/are currently in use by the Indian Army?

  1. NASU
  2. Bandvagn 206
  3. DT-30 Vityaz

Select the correct answer using the codes given below:

[A] Only 1 & 2
[B] Only 2
[C] Only 1 & 3
[D] None of the above

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25. Which of the following business models are based on Deep Tech?

  1. Uber taxi model
  2. E-books for digital download
  3. Block-chain technology
  4. Computer imaging

Choose the correct answer using the codes given below:

[A] Only 1, 2 & 3
[B] Only 1, 3 & 4
[C] Only 3 & 4
[D] 1, 2, 3 & 4

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26. Consider the following statements:

  1. The invention of the steam engine revolutionised road transport.
  2. The pipelines, ropeways and cableways are examples of land transportation.

Which of the above is / are correct?

[A] Only 1
[B] Only 2
[C] Both 1 and 2
[D] None of the above

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27. Consider the following statements:

  1. AI4Bharat is an initiative by IIT Delhi.
  2. This initiative would contribute to and accelerate Indic language AI work as a public good.

Which of the statements given above is/are correct?

[A] Only 1
[B] Only 2
[C] Both 1 & 2
[D] Neither 1 nor 2

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28. With reference to the adoption of 5Gi technology by mobile service providers, consider the following statements:

  1. 5G mobile phones and other consumer devices would not be compatible with 5Gi.
  2. The 5Gi technology is not capable of working in lower frequency levels.
  3. When it comes to 5Gi technology, the range of coverage goes down even with higher frequency.

Select the correct option using the codes given below:

[A] Only 1
[B] Only 1 & 2
[C] Only 2 & 3
[D] 1, 2 & 3

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29. Consider the following space missions and their targeted planet for study:

  1. Cassini – Saturn
  2. Juno – Jupiter
  3. MUSE – Mars
  4. Akatsuki – Neptune

Which of the above is / are correct?

[A] Only 1 & 2
[B] Only 1, 2 & 3
[C] Only 1, 2 & 4
[D] 1, 2, 3 & 4

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30. Which of the following is/are the approved antiviral oral drug(s) for the treatment of Covid19?

  1. Corbevax
  2. Paxlovid
  3. Molnupiravir

Choose the correct answer using the codes given below:

[A] Only 1 & 3
[B] Only 1 & 2
[C] Only 2 & 3
[D] 1, 2 & 3

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