UPSC Science & Technology

1. Consider the following comparisons between Resourcesat-1 and Resourcesat-2:

  1. Resourcesat-2 is able to collect data from a wider strip of the Earth’s surface than Resourcesat-1.
  2. Resourcesat-2 provides remote sensing data services for the entire globe, while Resourcesat-1 covered only selected areas.
  3. Resourcesat-2 was launched with an additional payload known as AIS (Automatic Identification System) from COMDEV, Canada, for experimental ship surveillance in the VHF band.

Which of the above statements is / are correct?

[A] Only 1 is correct
[B] Only 2 is correct
[C] 1 and 3 are correct
[D] 2 and 3 are correct

Show Answer

2. Consider the following:

  1. Magnetic Strip Card
  2. Chip Card

Which of the above operates on the basis of EMV technology?

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

Show Answer

3. Consider the following uses of cookies in the context of computers:

  1. Maintaining information across web sessions for users
  2. Running executable programmes on a user’s device
  3. Delivering viruses to computers

Which of the above is / are correct regarding the functions of cookies?

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

Show Answer

4. Which of the following in India have given evidence of occurrence of Uranium in India?

  1. Aravalli belt in Rajasthan
  2. Bhima basin in Karnataka
  3. Son valley in Uttar Pradesh

Select the correct option from the codes given below:

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

Show Answer

5. In Formula-1 racing, dry and wet types of tyres are used for different purposes. Which of the following is / are correct statements with this reference?

  1. While Dry Tyres are for wet surface conditions, wet tyres are for dry surface conditions
  2. While Dry Tyres have a tread pattern devoid of channels; wet tyres have grooves in the tread pattern

Select the correct option from the codes given below:

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

Show Answer

6. Which of the following is / are Mars Exploration Rovers?

  1. Spirit
  2. Opportunity
  3. Curiosity
  4. Mangalyaan

Select the correct option from the codes given below:

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

Show Answer

7. With reference to the ‘GAGAN’ system, consider the following statements:

  1. GAGAN has been developed jointly by ISRO (Indian Space Research Organization) and AAI (Airports Authority of India).
  2. It is a satellite-based augmentation system that enhances airline operations by increasing fuel savings, enabling direct routes, and improving safety.

Select the correct option from the codes given below:

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

Show Answer

8. Consider the following about the use of fly ash in concrete:

  1. It saves water during preparation
  2. It lowers the heat of hydration
  3. It reduces the corrosion of reinforcing steel
  4. The concrete quickly becomes strong compared to traditional concrete

Which of the above statements are correct?

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

Show Answer

9. Consider the following statements regarding Wi-Fi Direct:

  1. Wi-Fi Direct does not require a wireless access point for devices to connect.
  2. With Wi-Fi Direct, compatible devices can connect directly by generating their own wireless network.

Which of the above statements is / are correct?

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

Show Answer

10. Consider the following differences between Ku band C band:

  1. C band satellites are good for large bandwidth requirement, whereas Ku band is good for lower bandwidth requirement
  2. Ku band operates better with smaller satellite dish, whereas C band operates better with larger satellite dish

Which of the above statements is/are correct?

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

Show Answer