Inventions Practice Test 16
Loudspeaker Quiz Questions and Answers PDF - 16
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The Book Loudspeaker Quiz Questions and Answers, loudspeaker MCQ PDF Download, e-Book Test 16 to learn free inventions online courses. Practice Inventions and Inventors trivia questions, loudspeaker Multiple Choice Questions (MCQ) for online college degrees. The Loudspeaker Quiz App Download: Free learning app for tractor, pocket watch, astronomer, scotch tape, loudspeaker test prep for distance learning classes.
The Quiz: A loudspeaker was discovered by; "Loudspeaker" App Download (Free) with answers sir arthur sicard, sir gideon sundback, sir neil harphan and sir alexander graham bell for online classes. Solve inventions and inventors questions and answers, Amazon eBook to download free sample for online school classes.
Loudspeaker Questions and Answers PDF Download: Quiz 16
MCQ 76: A loudspeaker was discovered by
- Sir Gideon Sundback
- Sir Arthur Sicard
- Sir Neil Harphan
- Sir Alexander Graham Bell
MCQ 77: Scotch Tape was invented by
- Sir Frances Gabe
- Sir George Beers
- Sir Richard Drew
- Sir T.J Blachut
MCQ 78: Which one of the following was an American astronomer who demonstrates the existence of other galaxies?
- Sir Henry Ruttan
- Sir John Cunningham McLennan
- Dr Larry wang
- Sir Edwin Hubble
MCQ 79: The pocket watch was invented by
- Sir Peter Henlein
- Sir Gideon Sundback
- Sir Galileo Galilei
- Sir Harold Humphrey
MCQ 80: In which one of the following year, light weight general purpose tractor was invented?
- 1890
- 1899
- 1901
- 1923
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