Inventions Quiz 5 (20 MCQs)

Quiz Instructions

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1. This invention improved wood block printing
2. What scientist discovered the radioactive element radium?
3. Many young inventors gathered at ..... to invent things.
4. What African-American inventor received 5 patents in the field of shoemaking?
5. Who invented the Motorcycle?
6. The first computers were .....
7. First graphical user interface used commercially after its introduction was popularized as
8. What do all the inventions described in this text have in common?
9. The zipper was invented by Whitcomb L. Judson in
10. What is one thing the Chinese made out of Steel?
11. Which invention lets you call your friends?
12. What Sir Isaac Newton invented?
13. My father promised to reward me if I passed the English test.
14. Item used for spinning cotton(discovered by Indians).
15. The mechanical reaper .....
16. Which of the following statements is true about scientists?
17. The name of the planet whose moons Galileo discovered
18. The piano was invented in
19. Cities that switched from DC to AC power probably became
20. Which among the following tech giants has announced USD 10 billion worth investment in India?