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General Knowledge on Inventions | GK Test on Inventions Page 21
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Inventions

General Knowledge on Inventions

(Click on suggested Options to select the answer | Color Red means : Wrong & Green Means: Correct)

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201. Which was invented hydraulic fracturing technology?
202. Who is known as 'father of refrigeration' name of American inventor?
203. In which year was invented parachute in Italy? 
204. Which century was invented compass?
205.  Which year was invented world's first long range ballistic missile named V-2 rocket? 
206. Inwhich year was designed Earth inductor compass? 
207. Which year Nathaniel Baldwin was invented first headset?
208. Who was invented in 1883 first solar cell? 
209. Which year first personal computer controlled with a keyboard was invented?
210. Which year Chester Floyd Carlson invented photocopier?

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