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Science & Technology 2024

Science and Technology 2024

1. Which one of the following words/phrases is most appropriately used to denote “an interoperable network of 3D virtual worlds that can be accessed simultaneously by millions of users, who can exert property rights over virtual items”?
[UPSC Civil Services Exam – 2024 Prelims]

 
 
 
 

2. With reference to radioisotope thermoelectric generators (RTGs), consider the following statements:

  1. RTGs are miniature fission reactors.
  2. RTGs are used for powering the onboard systems of spacecraft.
  3. RTGs can use Plutonium-238, which is a by-product of weapons developments.

Which of the statements given above are correct?
[UPSC Civil Services Exam – 2024 Prelims]

 
 
 
 

3. Consider the following statements:

  1. Statement I: Giant stars live much longer than dwarf stars.
  2. Statement II: Compared to dwarf stars, giant stars have a greater rate of nuclear reactions.

Which one of the following is correct in respect of the above statements?
[UPSC Civil Services Exam – 2024 Prelims]

 
 
 
 

4. Which one of the following is synthesised in the human body that dilates blood vessels and increases blood flow?
[UPSC Civil Services Exam – 2024 Prelims]

 
 
 
 

5. Consider the following activities:

  1. Identification of narcotics on passengers at airports or in aircraft
  2. Monitoring of precipitation
  3. Tracking the migration of animals

In how many of the above activities can the radars be used?
[UPSC Civil Services Exam – 2024 Prelims]

 
 
 
 

6. Consider the following aircraft:

  1. Rafael
  2. MiG-29
  3. Tejas MK-1

How many of the above are considered fifth-generation fighter aircraft?
[UPSC Civil Services Exam – 2024 Prelims]

 
 
 
 

7. In which of the following are hydrogels used?

  1. Controlled drug delivery in patients
  2. Mobile air-conditioning systems
  3. Preparation of industrial lubricants

Select the correct answer using the code given below:
[UPSC Civil Services Exam – 2024 Prelims]

 
 
 
 

8. Which one of the following is the exhaust pipe emission from Fuel Cell Electric Vehicles, powered by hydrogen?
[UPSC Civil Services Exam – 2024 Prelims]

 
 
 
 

9. Recently, the term “pumped-storage hydropower” is actually and appropriately discussed in the context of which one of the following?
[UPSC Civil Services Exam – 2024 Prelims]

 
 
 
 

10. “Membrane Bioreactors” are often discussed in the context of:
[UPSC Civil Services Exam – 2024 Prelims]