CLAT GurukulSamudraManthan

Topic 249 · Answers

ISRO: LVM3 heavy lift, PSLV-C62 failure

All 10 answers, each with its Book 1 RATNA fact. Try the questions first

  1. Question 1Answer B

    PSLV-C62 failed on 12 January 2026. Which primary satellite was lost?

    • RISAT-1B
    • Correct answer: EOS-N1
    • Oceansat-4
    • Cartosat-4

    Core Trigger: PSLV-C62 failed on 12 January 2026 after a third-stage anomaly, losing EOS-N1 and 15 co-passenger payloads.From Book 1 RATNA, topic 249, point 1

  2. Question 2Answer D

    LVM3-M6 launched whose BlueBird Block-2 satellite on 24 December 2025?

    • Amazon Kuiper
    • Telesat
    • OneWeb
    • Correct answer: AST SpaceMobile

    Commercial Flight: LVM3-M6 launched AST SpaceMobile's BlueBird Block-2 from Sriharikota on 24 December 2025 under an NSIL contract.From Book 1 RATNA, topic 249, point 2

  3. Question 3Answer D

    Who is the ISRO Chairman?

    • A.S. Kiran Kumar
    • K. Sivan
    • S. Somanath
    • Correct answer: V. Narayanan

    Current Head: V. Narayanan, ISRO Chairman, said a detailed analysis of the PS3 stage anomaly had been initiated.From Book 1 RATNA, topic 249, point 3

  4. Question 4Answer C

    BlueBird Block-2 weighed about how much, the heaviest payload on an Indian rocket?

    • 8,000 kg
    • 5,100 kg
    • Correct answer: 6,100 kg
    • 4,000 kg

    Key Figure: BlueBird Block-2 weighed about 6,100 kg, the heaviest payload carried by an Indian rocket. PSLV has four stages.From Book 1 RATNA, topic 249, point 4

  5. Question 5Answer A

    PSLV-C62 was the second successive PSLV failure after which May 2025 mission?

    • Correct answer: PSLV-C61
    • PSLV-C59
    • PSLV-C58
    • PSLV-C60

    Failure Record: This was the second successive PSLV failure after PSLV-C61 (EOS-09) in May 2025; 16 payloads were lost.From Book 1 RATNA, topic 249, point 5

  6. Question 6Answer B

    NSIL, ISRO's commercial arm, functions under which department?

    • Ministry of Electronics and IT
    • Correct answer: Department of Space
    • Department of Atomic Energy
    • Ministry of Defence

    Stakeholders: NSIL, the commercial arm of ISRO under the Department of Space, contracted with US firm AST SpaceMobile.From Book 1 RATNA, topic 249, point 6

  7. Question 7Answer B

    In which city is ISRO headquartered?

    • Ahmedabad
    • Correct answer: Bengaluru
    • Thiruvananthapuram
    • Hyderabad

    Headquarters: ISRO is headquartered in Bengaluru, Karnataka; its launches take place from Sriharikota, Andhra Pradesh.From Book 1 RATNA, topic 249, point 8

  8. Question 8Answer C

    ISRO was formed in 1969 from INCOSPAR, set up in which year?

    • 1972
    • 1958
    • Correct answer: 1962
    • 1965

    Founded: ISRO was formed in 1969 from INCOSPAR (1962); NSIL was incorporated in 2019 to commercialise space products.From Book 1 RATNA, topic 249, point 9

  9. Question 9Answer A

    Which of the following is/are correct? 1. The Outer Space Treaty (1967) bars national appropriation of outer space. 2. India is not a party to it.

    • Correct answer: Only 1
    • Only 2
    • Both 1 and 2
    • Neither

    Landmark: The Outer Space Treaty (1967) bars national appropriation of outer space; India is a party to it.From Book 1 RATNA, topic 249, point 10

  10. Question 10Answer C

    Which of the following is/are correct? 1. A launching state is absolutely liable for damage on Earth under the Liability Convention (1972). 2. IN-SPACe authorises private space activity.

    • Only 1
    • Only 2
    • Correct answer: Both 1 and 2
    • Neither

    Policy: The Indian Space Policy 2023 gives ISRO research tasks and lets IN-SPACe authorise private space activity. Doctrine: Under the Liability Convention (1972), a launching state is absolutely liable for damage its space object causes on Earth.From Book 1 RATNA, topic 249, point 11, point 12

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