Question 1

What is the primary objective of ISRO's Aditya-L1 mission launched in 2023?

Accepted Answer

Aditya-L1 is India's first dedicated solar mission, launched on 2 September 2023. Its primary objective is to study the Sun's corona, solar winds, and solar flares to understand solar phenomena and their effects on space weather.

Question 2

In which year did ISRO successfully test the Reusable Launch Vehicle (RLV) technology with the RLV-TD (Technology Demonstrator) flight?

Accepted Answer

ISRO conducted the first test flight of the Reusable Launch Vehicle Technology Demonstrator (RLV-TD) on 23 May 2016. This was a significant milestone in developing reusable spacecraft technology for future cost-effective space launches.

Question 3

Which of the following is India's first interplanetary mission to Mars?

Accepted Answer

Mangalyaan (Mars Orbiter Mission or MOM) was India's first interplanetary mission, launched in November 2013 and successfully entered Mars orbit in September 2014. It made India the first nation to reach Mars in its first attempt.

Question 4

Which Indian space agency successfully deployed the Chandrayaan-3 mission, achieving a soft landing on the Moon's south polar region in August 2023?

Accepted Answer

The Indian Space Research Organisation (ISRO) successfully landed Chandrayaan-3 on the Moon's south polar region on August 23, 2023. This made India the fourth country to achieve a soft landing on the Moon and the first to land near the south pole. The mission consisted of a lander and rover module (the orbiter from Chandrayaan-2 was reused). This was a major achievement in India's space exploration program.

Question 5

Which Indian space agency is responsible for India's space programme and satellite launches?

Accepted Answer

The Indian Space Research Organisation (ISRO) is India's national space agency, established in 1969. It is responsible for developing space technology, launching satellites, and conducting space missions for scientific research and national development.

Question 6

What is the name of India's lunar mission that successfully landed on the Moon's south polar region in August 2023?

Accepted Answer

Chandrayaan-3 was India's third lunar mission, which successfully soft-landed on the Moon's south polar region on 23 August 2023. This made India the fourth country to achieve a soft landing on the Moon and the first to land near the south pole.

Question 7

What is the name of India's first space station project, which ISRO is currently developing to be operational by 2028-2030?

Accepted Answer

ISRO is developing the Indian Space Station (Bharatiya Antariksh Station or BAS), India's first indigenous space station project, with planned operational status by 2028-2030.

Question 8

Which Indian space agency successfully launched the Chandrayaan-3 mission, achieving a soft landing on the Moon's south polar region in August 2023?

Accepted Answer

ISRO (Indian Space Research Organisation) successfully landed Chandrayaan-3 on the Moon's south polar region on August 23, 2023, making India the fourth country to achieve a soft landing on the Moon and the first to land near the south pole.

Question 9

Which of the following is the correct full form of PSLV, the launch vehicle primarily used by ISRO for satellite launches?

Accepted Answer

PSLV stands for Polar Satellite Launch Vehicle. It is ISRO's reliable workhorse launch vehicle, first launched in 1994, used for placing satellites into polar and sun-synchronous orbits.

Question 10

In which year did ISRO successfully launch Chandrayaan-1, India's first lunar orbiter mission?

Accepted Answer

ISRO launched Chandrayaan-1 on October 22, 2008. It was India's first lunar mission and made significant discoveries, including confirmation of water molecules on the Moon's surface.

Question 11

Which ISRO satellite series is primarily used for Earth observation and remote sensing applications in India?

Accepted Answer

The IRS (Indian Remote Sensing) satellite series, now called RESOURCESAT series, is ISRO's primary Earth observation satellite constellation used for mapping, agriculture, disaster management, and environmental monitoring.

Question 12

Which Indian space mission successfully demonstrated India's capability to soft-land on the Moon's south polar region in August 2023?

Accepted Answer

Chandrayaan-3 was India's third lunar mission, which successfully soft-landed near the Moon's south pole on August 23, 2023. This made India the fourth country to achieve a soft landing on the Moon and the first to land near the south polar region. The mission consisted of a lander and rover module (the orbiter from Chandrayaan-2 was reused). This achievement was significant as the south polar region is scientifically important for water ice exploration.

Question 13

Which of the following is NOT a function of ISRO (Indian Space Research Organisation)?

Accepted Answer

ISRO's primary functions include developing satellite technology, launch vehicles, space applications for national development, and conducting space research. ISRO does not have the function of regulating private space companies—that responsibility falls under the Department of Space and the newly established Indian National Space Promotion and Authorization Centre (IN-SPACe), established in 2021.

Question 14

Which Indian space mission successfully demonstrated India's capability to soft-land on the lunar south pole region, making India the fourth country to achieve a soft landing on the Moon?

Accepted Answer

Chandrayaan-3 successfully soft-landed on the Moon's south pole region on 23 August 2023, making India the fourth country (after USSR, USA, and China) to achieve a soft landing on the Moon. This was a significant achievement as the south pole region is scientifically valuable for water ice exploration and has never been explored by any nation before.

Question 15

The Geosynchronous Satellite Launch Vehicle (GSLV) Mk-III, renamed as LVM3, can carry a payload of approximately how many kilograms to Geosynchronous Transfer Orbit (GTO)?

Accepted Answer

The GSLV Mk-III (now designated as LVM3 — Launch Vehicle Mark 3) is ISRO's heavy-lift launch vehicle. It can carry approximately 4,000 kg (4 metric tonnes) of payload to Geosynchronous Transfer Orbit (GTO). This makes it one of the most powerful Indian launch vehicles and enables India to launch heavy communication satellites independently without relying on foreign launch providers.

Question 16

The Chandrayaan-3 mission successfully landed on which region of the Moon in August 2023?

Accepted Answer

Chandrayaan-3 successfully soft-landed on the Moon's south polar region on August 23, 2023. The lander touched down near the Manzinus C crater, making India the fourth country to achieve a soft landing on the Moon and the first to land near the lunar south pole. This region is scientifically significant due to the presence of water ice and permanently shadowed craters.

Question 17

Which ISRO satellite mission was designed to study the Sun's corona and is India's first dedicated solar mission launched in 2023?

Accepted Answer

Aditya-L1 is ISRO's first dedicated solar mission, launched on September 2, 2023, from Sriharikota. It is positioned at the Sun-Earth L1 Lagrange point (approximately 1.5 million km from Earth) to study the solar corona, solar wind, and coronal mass ejections without atmospheric interference.

Question 18

What is the escape velocity from the surface of Earth, approximately?

Accepted Answer

Escape velocity is the minimum velocity required for an object to break free from the gravitational attraction of a celestial body without further propulsion. For Earth, this value is approximately 11.2 km/s (or about 40,270 km/h). This is derived from the formula: v_e = √(2GM/R), where G is gravitational constant, M is mass, and R is radius.

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