Science Quiz Questions based on Chandrayaan-3 Mission

— Indian Space Research Organisation (@isro) August 30, 2023

Historic moment for India and ISRO: Key achievement in Chandrayaan-3 soft landing

Take the quiz below to test your knowledge of the Indian Space Research Organisation’s attempt to make India the fourth country to land a spacecraft on the moon.

1. When is the launch date of Chandrayaan-3 mission?

Answer: July 24, 2023

B. July 14, 2023

C. July 13, 2023

D. July 4, 2023

Answer B

Description: Chandrayaan-3 is the third lunar exploration mission of the Indian Space Research Organisation (ISRO) and will be launched on July 14, 2023.

2. The rover of the Chandrayaan-3 mission was called

A. Vikram

B. Bheem

C. Pragyaan

D. Dhruv

Answer C

Explanation: According to the Indian Space Research Organisation chairman, the name of the lander ‘Vikram’ and the name of the Mars rover ‘Prajan’ will be retained in memory of the Chandrayaan-2 mission.

List of Chairmen of Indian Space Research Organization (1963-2023)

3. The mission life of the lander and rover is equivalent to

A. 14 Earth Days

B. 24 Earth Days

C. 16 Earth Days

D. 12 Earth Days

Answer: A

Explanation: According to the Indian Space Research Organization authorities, the lander’s mission life is one lunar day, which is equivalent to 14 days on Earth.

4. Which launch vehicle was used for Chandrayaan-3?

Answer: GSLV

B. LVSM

C. GSLV-Mk3

D.PSLV

Answer C

Explanation: The launch vehicle selected for Chandrayaan-3 is GSLV-Mk3, which will position the integrated module in an elliptical parking orbit (EPO) of approximately 170 x 36,500 km in size.

5. Chandrayaan-3 mission objectives

A. Demonstrate the movement of the lunar rover on the moon, and

B. Demonstrate a safe soft landing on the lunar surface

C. Conduct on-site scientific experiments.

D. All of the above

Answer D

Description: ISRO has set three main objectives for the Chandrayaan-3 mission, including:

  1. Let the lander land safely and softly on the lunar surface.
  2. Observe and demonstrate the lunar rover’s cruising capabilities on the moon
  3. Field science observations refer to conducting scientific experiments on the chemical and natural elements, soil, water, etc. on the lunar surface to better understand and practice the composition of the moon. Interplanetary exploration refers to the development and demonstration of new technologies required for missions between the two planets.

6. How much did the Chandrayaan-3 mission cost?

1200 crore rupees

Rs.960 crore

About Rs. 600 crore

D.540 million rupees

Answer C

Explanation: The cost of Chandrayaan-3 mission is lower than Chandrayaan-2 mission which cost over Rs 960 crore.

7. What is the total weight of Chandrayaan-3?

Answer: 4100 kg

B.3900 kg

About 2190 kg

D.5200 kg

Answer B

Note: The propulsion module alone weighs 2,148 kg. The lander and rover are both located inside the lander module, which weighs 1,752 kg.

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8. What is present in Chandrayaan-3 that is not present in Chandrayaan-2?

A. Laser Doppler velocimeter (LDV)

B. Laser-based interferometry

C. Ultrasound Doppler Method

D. Molecular marker velocimetry

Answer: A

Explanation: The Chandrayaan-3 lander will be equipped with only four throttled engines and will be equipped with a Laser Doppler Velocimeter (LDV).

Chandrayaan-3 moon landing time today: When and where to watch live

9. Which of the following was missing from Chandrayaan-3?

A. Rover

B. Rand

C. Orbiter

D. None of the above

Answer C

Explanation: According to the Indian Space Research Organization, while Chandrayaan-2 carried the lander Vikram, orbiter and rover Pragyan, Chandrayaan-3 will carry only the rover and lander. In addition, the orbiter launched with Chandrayaan-2 will still be put into use.

10. What is the design of the propulsion module?

A. Box-like structure with solar panels on the sides and a cylinder on top

B. Rectangular structure with solar panels on all four sides

C. A cube with a sphere on top

D. None of the above

Answer: A

Explanation: The propulsion module is a box-like structure with a large solar panel on one side and a huge cylinder on top. This cylinder, called the intermodule adapter cone, will serve as the mounting frame for the lander.

11. Who is in charge of the Chandrayaan-3 mission?

A. Veeramuthuvel

B. M Vanitha

C. Ritu Karidhal

DK Sivan

Answer C

Caption: Ritu Kharidhal is a renowned scientist at the Indian Space Research Organisation (ISRO). She will lead the launch of Chandrayaan-3 this year.

12. Where will Chandrayaan-3 land on the Moon?

A. Near Antarctica

B. Near the North Pole

C. Equatorial region

D. None of the above

Answer: A

Explanation: The goal of this mission is to explore the lunar south pole. This is because the lunar south pole is rich in water ice, which is a valuable resource for future lunar exploration. Compared with the North Pole, the lunar south pole has been less explored, so landing there has great scientific potential.

13. What challenges will ISRO face in the Chandrayaan-3 mission?

A: The lunar surface is extremely harsh, and the lander and rover need to be able to withstand extreme conditions.

B. The landing site is located near the South Pole of the Moon, a very remote and undeveloped area.

C. The lander and rover need to be able to communicate with Earth, but the Moon’s atmosphere is very thin, which will make communication difficult.

D. All of the above.

Answer D

Explanation: The Chandrayaan-3 mission will face many challenges, including the harsh lunar surface, a remote landing site, and difficult communications conditions.

14. Which country was the fourth to successfully land a spacecraft on the moon?

A. China

B. India

C. Russia

D.United States

Answer B

Explanation: The first three countries to successfully land a spacecraft on the moon were the United States, Russia, and China. On September 7, 2019, India became the fourth country to achieve this when the Chandrayaan-2 lander “Vikram” successfully touched down on the lunar surface.

15. What scientific instruments will the Chandrayaan-3 lander and rover carry?

A. Surface Science Instruments

B. Atmospheric Science Instruments

C. Water Science Instruments

D. All of the above

Answer D

Description: The Chandrayaan-3 mission will carry a variety of scientific instruments to study the Moon. These instruments, carried by the lander and rover, will be used to study the composition and structure of the lunar surface, the composition and dynamics of the lunar atmosphere, and to search for water ice on the Moon.

16. What is the landing schedule for the Chandrayaan-3 lander?

Answer: August 29, 2023

B. August 25, 2023

C. August 23, 2023

D. August 24, 2023

Answer C

Explanation: Chandrayaan-3 is expected to make a successful soft landing in the south polar region of the moon at around 6:04 pm today (August 23).

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17. How will Chandrayaan-2 greet Chandrayaan-3?

A. Hello, man!

B. Hi, buddy!

C. Welcome friends!

D. Hey, man!

Answer C

Explanation: The Indian Space Research Organization informed that the Chandrayaan-2 orbiter, which has entered the lunar orbit, has established connection with the Chandrayaan-3 lander Vikram, which has a lunar rover on its belly.

18. How much did the Chandrayaan-3 mission cost?

Answer: $74 million

B. $65 million

Approximately US$72 million

D.58 million

Answer: A

Explanation: According to K Sivan, former chairman of the Indian Space Research Organization, the total cost of the mission is expected to be around $74 million.

19. Who is the rocket heroine behind the Chandrayaan-3 mission?

A. Moumita Datta

B. Ritu Karidhal

C. Nandini Harinath

D. Tessie Thomas

Answer B

Caption: Ritu Karidhal is a senior scientist also known as the “Rocket Woman of India”. She led the successful Chandrayaan-3 mission along with other scientists.

20. When did the Vikram lander touch the lunar surface?

A: 6:02 PM IST

B. 6:04 PM IST

C. 6:05 PM IST

D. 6:06 PM IST

Answer B

Explanation: The powered descent started at around 5.45 pm and the soft landing was achieved at around 6.04 pm IST on 23 August 2023.

21. August 23 will be celebrated as

A. Space Day

B. Chandrayaan-3

C. Indian Space Research Organisation Day

D. National Space Day

Answer D

Explanation: Prime Minister Narendra Modi, while addressing scientists of the Indian Space Research Organisation, announced that August 23 will be observed as National Space Day to mark the launch of Chandrayaan-3.

  1. Where is Jawahar Point on the Moon?

A. Near the equator

B. Polar Regions

C. Shackleton Crater Lunar Region

D. Antarctica

Answer C

Explanation: Jawahar Point or Jawahastal is an area near Shackleton Crater which was designated as the landing site for Chandrayaan 1. It was proposed by APJ Abdul Kalam.

24. ChaSTE Payload sent about

A. Air pressure on the moon

B. Temperature distribution of the surface soil

C. Ice and water levels on the Moon

D. None of the above

Answer B

Caption: The Chandra Surface Thermophysics Experiment (ChaSTE) measures the temperature profile of the lunar regolith around the poles to understand the thermal behavior of the lunar surface.

25. What was the name of the first female robot in India’s first manned space mission?

A. Sangamitra

B. Gangamitra

C. Vyommitra

D. Gagan Mitra

Answer C

Description: Vyommitra is a female-looking space humanoid robot developed by the Indian Space Research Organisation (ISRO).

26. Which chemical element was discovered on Chandrayaan-3?

A. Titanium

B. Sulfur

C. Magnesium

D. Chlorine

Answer B

Explanation: An instrument aboard the Chandrayaan-3 mission’s lunar rover, Pragyan, has found surprising traces of sulfur in the soil at the moon’s south pole, Space.com reports.

27. What did RAMBHA-LP measure on the Moon?

A. Sulfur

B. Elements

C. Plasma

D. Magnesium

Answer C

Caption: The Lunar High-Sensitivity Ionosphere and Atmosphere Radio Anatomy-Langmuir Probe (RAMBHA-LP) payload on the Chandrayaan-3 lander made the first in situ measurements of the surface-bound lunar plasma environment in the south polar region.

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