11. Consider the following statements regarding EMISAT:
- It carried 28 foreign satellites belonging to USA, Spain, Lithuania and Switzerland.
- It will be used to identify and detect enemy radars placed at the borderline.
- The launch vehicle used is PSLV – C45.
Which of the above statements is / are correct?
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
EMISAT was launched by ISRO on April 1, 2019, using PSLV-C45. Along with EMISAT, 28 foreign satellites from USA, Switzerland, Lithuania and Spain were carried. EMISAT is designed for electronic intelligence and will help detect and locate enemy radar installations. Thus, all three statements are correct.
12. Consider the following statements about the Transiting Explanted Survey Satellite (TESS) mission launched by NASA:
- It was led by the Massachusetts Institute of Technology.
- It will use the transit method to detect exoplanets.
- In April, 2018 TESS has discovered a third small planet outside our solar system.
Which of the above statements is / are correct?
[A] Only 1
[B] Only 2
[C] All 1, 2, and 3
[D] 1 and 3 only
Show Answer
Correct Answer: C [All 1, 2, and 3]
Notes:
The Transiting Exoplanet Survey Satellite is a NASA mission that will look for planets orbiting the brightest stars in Earth’s sky. The mission will monitor at least 200,000 stars for signs of exoplanets. It was led by MIT and aims to use the transit method to detect exoplanets. In April 2018, it has indeed discovered a third small planet outside our solar system.
13. Consider the following statements regarding the recent creation of the largest carbon nanotube (CNT) computer chip at MIT:
- The carbon nanotubes utilized in the chip are semiconducting in nature.
- CNT-based transistors exhibit higher energy efficiency than traditional silicon-based transistors.
- Moore’s Law is applicable to silicon-based computer chips.
Which of the above statements is/are correct?
[A] 2 and 3 only
[B] 1 and 2 only
[C] 1 and 3 only
[D] All of the above
Show Answer
Correct Answer: A [2 and 3 only]
Notes:
Statement 1 is incorrect, as only semiconducting CNTs are suitable for transistors, and MIT overcame the challenge of metallic CNTs. Statement 2 is correct; CNT-based transistors are significantly more energy efficient than silicon-based ones. Statement 3 is correct; Moore’s Law predicts trends in the scaling of silicon-based chips. Hence, only 2 and 3 are correct.
14. Which of the following pairs of aircraft and respective countries is/are matched correctly?
- P-8I – USA
- Su-35 – Russia
- An-225 Mriya – Ukraine
- Y-20 – China
Select the correct answer using the codes given below:
[A] Only 1, 2 & 3
[B] Only 2, 3 & 4
[C] Only 1, 2 & 4
[D] 1, 2, 3 & 4
Show Answer
Correct Answer: B [Only 2, 3 & 4]
Notes:
P-8I is an Indian variant based on the P-8A developed by the USA for the US Navy, so 1 is incorrect. Su-35 is a Russian aircraft, An-225 Mriya was Ukrainian, and Y-20 is a transport aircraft developed by China. Hence, only pairs 2, 3, and 4 are correctly matched to their respective countries.
15. Consider the following statements regarding the Rocket-Propelled Grenade (RPG), which was used to attack the Punjab Police’s Intelligence headquarters:
- It is a Chinese origin weapon.
- It is an anti-tank grenade launcher.
- It is a portable, shoulder fired weapon.
Select the correct answer using the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: B [Only 2 & 3]
Notes:
The RPG is a Soviet-origin weapon, not Chinese. It stands for Ruchnoy Protivotankovyy Granatomyot, meaning handheld anti-tank grenade launcher. It is a portable, shoulder-fired weapon, widely used against armoured vehicles, personnel, and buildings for its ease of use and destructive capability.
16. Consider the following pairs:
- Metanoa App – neurodevelopment disorders
- AadhaarFaceRd App – face authentication
- Anamaya App – education
How many pairs given above are matched correctly?
[A] Only 1 pair
[B] Only 2 pairs
[C] Only 3 pairs
[D] None of the above
Show Answer
Correct Answer: B [Only 2 pairs]
Notes:
- Metanoa app helps parents identify developmental disorders in children. It is a unique application which provides on-demand evidence-based therapy for children with Neurodevelopmental disorders.
- AadhaarFaceRd has been launched by the Unique Identification Authority of India (UIDAI)with face authentication feature. For authentication, Aadhaar card holders no longer need to physically visit an enrollment centre for iris and fingerprint scans.
- ‘Anamaya’ is launched to boost the nutritional and health status of the tribal communities of India by converging efforts of various Government agencies and organizations. It is launched by the Union Health Ministry in collaboration with the Union Minister of Tribal Affairs.
17. Consider the following statements:
- Danuri is a Lunar Orbiter launched by Japan.
- South Korea is the eight political body to execute a moon mission.
- Nuri is South Korea’ s first homemade rocket.
Which of the statements given above is/are correct?
[A] Only 3
[B] Only 1 & 2
[C] Only 2 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: C [Only 2 & 3]
Notes:
- The KoreaPathfinder Lunar Orbiter, nicknamed Danuri, meaning “enjoy the Moon” was launched on SpaceX’s Falcon 9 If South Korea successfully executes this lunar mission, it will become the eighth political body to execute a moon mission after the United States, the former Soviet Union, China, Japan, India, Luxembourg, and the European Union.
- South Korea has successfully launched a satellite into orbit using its first homemade rocket, Nuri.
18. Consider the following statements:
- The invention of the steam engine revolutionised road transport.
- 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
Show Answer
Correct Answer: B [Only 2]
Notes:
The invention of the internal combustion engine revolutionised road transport in terms of road quality and vehicles (motor cars and trucks) plying over them. Among the newer developments in land transportation are pipelines, ropeways and cableways.
19. With reference to India, which of the following initiatives can help achieve data security?
- Data anonymization
- Digital Personal Data Protection Bill, 2022
- RBI’s Tokenisation policy
Select the correct answer using the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: D [1, 2 & 3]
Notes:
Data anonymization protects privacy by removing identifiable information. The Digital Personal Data Protection Bill, 2022 addresses data privacy and protection legislatively. RBI’s Tokenisation policy enhances payment security by replacing card details with unique tokens. All three initiatives aim to strengthen data security in India and are relevant for securing personal and financial information.
20. With reference to various space research programmes / missions, which of the following is / are correct statements?
- Pioneer 10 was the first mission to leave solar system
- NASA’s New Frontiers Program conducts research primarily on bodies beyond solar system
- Dragonfly is an astrobiology mission to Saturn’s Moon Titan
Select the correct answer from the codes given below:
[A] Only 1 & 2
[B] Only 2 & 3
[C] Only 1 & 3
[D] 1, 2 & 3
Show Answer
Correct Answer: C [Only 1 & 3 ]
Notes:
Pioneer 10, launched by NASA in 1972, was the first spacecraft to reach escape velocity and leave the Solar System, currently heading towards the Taurus constellation. The New Frontiers program consists of medium-budget missions for Solar System exploration, with three launched: New Horizons, Juno, and OSIRIS-REx. The proposed fourth mission, Dragonfly, aims to study astrobiology on Saturn’s moon Titan.
