1. What is the primary material used in constructing LignoSat?
1) Aluminium
2) Magnolia wood
3) Cork
4) Steel
2. When was LignoSat launched into space?
1) October 5, 2024
2) December 5, 2024
3) November 5, 2024
4) September 5, 2024
3. What are the dimensions of LignoSat?
1) 5 centimetres on each side
2) 10 centimetres on each side
3) 15 centimetres on each side
4) 20 centimetres on each side
4. How much does LignoSat weigh?
1) 800 grams
2) 950 grams
3) 1000 grams
4) 900 grams
5. Which spacecraft transported LignoSat to the ISS?
1) Soyuz
2) SpaceX Dragon
3) Progress
4) Cygnus
6. What temperature range does LignoSat experience in space every 45 minutes?
1) -50 to 50 degrees Celsius
2) -75 to 75 degrees Celsius
3) -100 to 100 degrees Celsius
4) -150 to 150 degrees Celsius
7. Which university developed LignoSat?
1) Tokyo University
2) Osaka University
3) Kyoto University
4) Hokkaido University
8. What company collaborated with the university on this project?
1) Toyota
2) Sumitomo Forestry
3) Mitsubishi
4) Honda
9. What is the origin of the name “LignoSat”?
1) Greek word for wood
2) Japanese word for wood
3) Latin word for wood
4) Sanskrit word for wood
10. How is the wooden structure of LignoSat assembled?
1) With metal screws
2) With industrial glue
3) With both screws and glue
4) Without screws or glue
11. What era saw widespread use of wood in aircraft construction?
1) Early 1900s
2) Mid 1900s
3) Late 1900s
4) 2000s
12. What is one advantage of wood in space compared to Earth?
1) It becomes stronger
2) It doesn’t rot or ignite
3) It becomes more flexible
4) It becomes lighter
13. What environmental problem do conventional satellites cause?
1) Radio interference
2) Space debris
3) Ozone layer damage
4) Atmospheric pollution
14. How long is the planned orbital period for LignoSat?
1) Three months
2) Six months
3) Nine months
4) Twelve months
15. What material has been previously used in spacecraft for re-entry protection?
1) Bamboo
2) Cork
3) Pine
4) Oak
16. Within what timeframe do researchers hope to build wooden habitats on the Moon and Mars?
1) 25 years
2) 50 years
3) 75 years
4) 100 years
17. What harmful substance is released when conventional satellites burn up?
1) Carbon dioxide
2) Aluminium oxides
3) Nitrogen oxides
4) Sulfur dioxide
18. Who is Takao Doi?
1) LignoSat’s designer
2) Sumitomo Forestry CEO
3) Japanese astronaut and researcher
4) Wood technology expert
19. What traditional element is still present in LignoSat despite its wooden panels?
1) Steel framework
2) Aluminium structures
3) Titanium components
4) Carbon fiber elements
20. What type of craftsmanship was used in LignoSat’s construction?
1) Modern European
2) Traditional Japanese
3) Contemporary American
4) Ancient Chinese
21. What is one main purpose of the LignoSat mission?
1) Testing communication systems
2) Testing wood’s durability in space
3) Studying solar radiation
4) Monitoring Earth’s atmosphere
22. What unique property of space makes wood potentially viable as a building material?
1) High radiation levels
2) Zero gravity
3) Absence of oxygen and water
4) Extreme temperatures
23. What is the primary environmental benefit of wooden satellites?
1) Lower production costs
2) Reduced weight
3) Sustainable material usage
4) Better signal transmission
24. What does LignoSat aim to protect from space radiation?
1) Solar panels
2) Semiconductors
3) Battery cells
4) Communication equipment
25. What is the expected outcome if LignoSat proves successful?
1) Complete replacement of metal satellites
2) Partial replacement of metals in satellite construction
3) Immediate construction of wooden space stations
4) Abandonment of traditional satellite materials