General Knowledge MCQs – Practice Test 23 (Chapter 14)
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Free "Technology Inventions Study" App Download (iOS & Android): Thomas Edison invented light bulb in; MCQ with answers: 1869, 1889, 1879, and 1883. Study Australia Continent Quiz Questions, download Google Book (Free Chapter) for digital learning access.
MCQ 111: Thomas Edison invented light bulb in
MCQ 112: First car made with Teetor's cruise control method was the
MCQ 113: First ever solar battery was invented by Bell Telephone scientists in
MCQ 114: First 'AM' radio factory was opened in
MCQ 115: A steam shovel is a machine designed for moving and lifting material in mining industry such as rock and soil is invented in 1835 by
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