Inventions Practice Test 89
AC and DC MCQ (Multiple Choice Questions) PDF - 89
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The MCQs: Which one of the following invents Ac and DC; "AC and DC" App Download (iOS & Android) with answers sir otto blathy, sir nikola tesla, sir alexander graham bell for virtual online school. Practice inventions and inventors questions and answers, Google eBook to download free sample for virtual elementary school.
AC and DC Questions and Answers PDF Download: Quiz 89
MCQ 441: Which one of the following invents Ac and DC?
- Sir Nikola Tesla
- Sir Otto Blathy
- Sir Alexander Graham Bell
- both a and b
MCQ 442: In which one of the following year, the pressure cooker was patented?
- 1657
- 1643
- 1645
- 1679
MCQ 443: In which one of the following year, the silicon chip blood analyzer was invented?
- 1940
- 1937
- 1922
- 1986
MCQ 444: The microscope was invented by
- Sir Peter Henlein
- Sir Galileo Galilei
- Sir Zacharias Janssen
- Sir William kennedy Dickson
MCQ 445: The first rapid fire firearm was a Gatling gun invented by
- Sir Richard Jordan Gatling
- Sir Henry W. Seelay
- Sir Schuyler Skaats Wheeler
- Sir Samuel W. Francis
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