11. Which island in Andhra Pradesh is home to ISRO’s Satish Dhawan Space Centre?
[A] Diviseema Island
[B] Sriharikota Island
[C] Hope Island
[D] Bhavani Island
Show Answer
Correct Answer: B [Sriharikota Island]
Notes:
Sriharikota Island hosts ISRO’s Satish Dhawan Space Centre and separates Pulicat Lake from the Bay of Bengal.
12. Which Indian space scientist from ISRO’s Vikram Sarabhai Space Centre specialized in lightning physics and co-authored A Brief History of Rocketry in ISRO?
[A] P. V. Manoranjan Rao
[B] Satish Dhawan
[C] Vikram Sarabhai
[D] K. Radhakrishnan
Show Answer
Correct Answer: A [P. V. Manoranjan Rao]
Notes:
P. V. Manoranjan Rao specialized in lightning physics and co-authored the noted ISRO history book.
13. Consider the following statements regarding the Axiom-4 mission:
- The mission is a private US-based venture aiming to send astronauts to the Moon.
- Shubhanshu Shukla will become the second Indian to go into space, following Rakesh Sharma.
- The mission is scheduled for launch in May 2025.
- The Axiom-4 mission is part of the Gaganyaan program for human spaceflight by ISRO.
Which of the above statements is/are correct?
[A] 1, 2 and 3 only
[B] 2 and 3 only
[C] 2, 3, and 4 only
[D] 1, 3, and 4 only
Show Answer
Correct Answer: B [2 and 3 only]
Notes:
The Axiom-4 mission is aimed at sending astronauts to the International Space Station (ISS), not to the Moon. Shubhanshu Shukla will indeed become the second Indian in space, trailing Rakesh Sharma after around 40 years. The scheduled launch of the mission is in May 2025. The mission is not a part of the Gaganyaan program by ISRO. Hence, answers 2 and 3 are correct.
14. Consider the following statements related to the TV-D2 mission in ISRO’s Gaganyaan program:
- Its purpose is to test the Crew Escape System (CES) during an abort scenario.
- It is designed to launch India’s first human spaceflight into orbit.
- It serves to simulate landing scenarios for Gaganyaan astronauts.
- It is aimed to test the performance of the space station module.
Which of the above statements is/are correct?
[A] 1 and 2 only
[B] 2 and 3 only
[C] 1 only
[D] 1, 2, and 4 only
Show Answer
Correct Answer: C [1 only]
Notes:
The TV-D2 mission under ISRO’s Gaganyaan program primarily aims to test the Crew Escape System (CES) during potential abort scenarios. It does not aim to launch India’s first human spaceflight into orbit (Option 2), simulate landing scenarios (Option 3), or test the space station module’s performance (Option 4). Hence the correct answer is Option 3 (statement 1 is only correct).
It primarily focuses on simulating an abort scenario during the ascent phase of the mission, not specifically landing scenarios.
15. With reference to ISRO’s SPADEX mission, consider the following statements:
- The SPADEX mission was launched using the GSLV Mk III vehicle in December 2024.
- It involves docking and undocking experiments using two small spacecraft.
- The successful demonstration of docking technology is critical for missions like the Bharatiya Antariksh Station.
Which of the statements given above is/are correct?
[A] 1 and 2 only
[B] 2 and 3 only
[C] 1 and 3 only
[D] 1, 2, and 3
Show Answer
Correct Answer: B [2 and 3 only]
Notes:
The SPADEX mission was actually launched aboard the PSLV-C60, not the GSLV Mk III, making option 1 incorrect. However, the mission indeed involves carrying out docking and undocking experiments using two small spacecraft, and the success of such a demonstration is crucial for certain missions like the Bharatiya Antariksh Station, making options 2 and 3 correct.
16. Consider the following future goals of ISRO:
- Construction of Bharatiya Antariksh Station
- Reusable Launch Vehicle (RLV) development
- Human Moon Mission by India
- Chandrayaan-4 robotic rover deployment
Which of these are likely to benefit from the successful SPADEX mission?
[A] 1 and 3 only
[B] 2 and 4 only
[C] 1, 2, and 3 only
[D] 1, 3, and 4 only
Show Answer
Correct Answer: D [1, 3, and 4 only]
Notes:
The successful SPADEX mission is likely to benefit primarily the construction of the Bharatiya Antariksh Station and the Human Moon Mission by India.
These require docking capabilities which the SPADEX mission focuses on.
The development of the Reusable Launch Vehicle (RLV) is about atmospheric flight and landing technology, not docking.
SpaDeX’s success paves the way for future missions like Chandrayaan-4, which aims to return lunar samples to Earth. Also, unless a return or assembly module is involved, a robotic Chandrayaan-4 mission wouldn’t need docking.
17. ISRO recently conducted the second short hot test of the semi-cryogenic engine for which launch vehicle?
[A] Launch Vehicle Mark-3 (LVM3)
[B] SSLV (Small Satellite Launch Vehicle)
[C] NGLV (Next Generation Launch Vehicle)
[D] Polar Satellite Launch Vehicle (PSLV)
Show Answer
Correct Answer: A [Launch Vehicle Mark-3 (LVM3)]
Notes:
The Indian Space Research Organisation (ISRO) has successfully conducted the second short hot test of the semicryogenic engine that will power the Semicryogenic booster stage of the Launch Vehicle Mark-3 (LVM3). A semicryogenic engine uses a cryogenic oxidizer like Liquid Oxygen and a hydrocarbon-based fuel like kerosene. It combines the advantages of cryogenic and conventional engines, offering better efficiency and operational simplicity. In comparison, a fully cryogenic engine uses both fuel and oxidizer in liquid form, like Liquid Hydrogen and Liquid Oxygen, giving 100% efficiency without causing greenhouse gas emissions. This successful test marks a key step towards upgrading LVM3 for future heavy-lift missions.
18. With reference to the NISAR satellite mission, consider the following statements:
- It is a collaborative Earth observation satellite mission between NASA and ISRO.
- It will be launched aboard an Ariane 5 launch vehicle.
- It is capable of detecting changes on the Earth’s surface as small as one centi-metre.
- It aims to study dynamic Earth processes such as glacier retreat, vegetation change, and seismic activity.
Which of the above statements are correct?
[A] Only 1 and 2
[B] Only 1 and 4
[C] Only 2 and 3
[D] Only 1, 3 and 4
Show Answer
Correct Answer: D [Only 1, 3 and 4]
Notes:It is a collaborative Earth observation satellite mission between NASA and ISRO. Correct. NISAR is a joint mission between
NASA (United States) and
ISRO (India). It is one of the most advanced Earth observation missions, aimed at monitoring the planet’s surface with high precision using dual-band radar (L-band by NASA and S-band by ISRO).
It will be launched aboard an Ariane 5 launch vehicle. Incorrect. NISAR is planned to be launched aboard an Indian GSLV (Geosynchronous Satellite Launch Vehicle), not the Ariane 5. The launch is expected to take place from Sriharikota, India.
It is capable of detecting changes on the Earth’s surface as small as one metre. Correct. NISAR’s high-resolution radar system can detect changes in the Earth’s surface — such as land deformation, glacier movement, and vegetation dynamics — with a precision of about one centimeter to a few meters, depending on the observation mode and application. So, detecting changes as small as one metre is well within its capability.
It aims to study dynamic Earth processes such as glacier retreat, vegetation change, and seismic activity. Correct. One of the primary missions of NISAR is to study Earth’s dynamic processes, including glacier and ice sheet melting, vegetation dynamics, ground deformation from earthquakes and landslides, and changes in groundwater and subsidence. It will provide critical data for climate science, disaster response, and natural resource management.
19. ISRO का पूरा नाम क्या है?
[A] इंडियन स्पेस रिसर्च ऑर्गनाइजेशन
[B] इंडियन स्पेस रिडेम्पशन ऑर्गनाइजेशन
[C] इंडियन स्पेशल रिसर्च ऑर्गनाइजेशन
[D] उपरोक्त में से कोई नहीं
Show Answer
Correct Answer: A [इंडियन स्पेस रिसर्च ऑर्गनाइजेशन]
Notes:
ISRO का मतलब इंडियन स्पेस रिसर्च ऑर्गनाइजेशन है, जिसकी स्थापना 1969 में भारत सरकार की प्रमुख अंतरिक्ष एजेंसी के रूप में हुई थी और इसका मुख्यालय बेंगलुरु में है।
20. ISRO ने रोहिणी साउंडिंग रॉकेट किस शहर से लॉन्च किया था?
[A] बेंगलुरु
[B] तिरुवनंतपुरम
[C] हैदराबाद
[D] चेन्नई
Show Answer
Correct Answer: B [तिरुवनंतपुरम]
Notes:
भारतीय अंतरिक्ष अनुसंधान संगठन यानी ISRO ने रोहिणी साउंडिंग रॉकेट को केरल के तिरुवनंतपुरम से लॉन्च किया था। साउंडिंग रॉकेट्स को सब-ऑर्बिटल उड़ानों के लिए डिज़ाइन किया जाता है जिससे ये वायुमंडल का अध्ययन कर सकें बिना कक्षा में पहुंचे। ये वैज्ञानिक अनुसंधान खासकर मौसम विज्ञान के लिए बेहद ज़रूरी होते हैं और महंगे ऑर्बिटल मिशनों से पहले उपकरणों की जांच के लिए एक परीक्षण मंच का काम करते हैं।
