Inventions Practice Test 16
Loudspeaker Quiz Questions and Answers PDF - 16
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The Loudspeaker Quiz Questions and Answers PDF (Loudspeaker Quiz with Answers PDF e-Book) download Test 16 to learn 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; 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
A loudspeaker was discovered by
- Sir Gideon Sundback
- Sir Arthur Sicard
- Sir Neil Harphan
- Sir Alexander Graham Bell
Scotch Tape was invented by
- Sir Frances Gabe
- Sir George Beers
- Sir Richard Drew
- Sir T.J Blachut
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
The pocket watch was invented by
- Sir Peter Henlein
- Sir Gideon Sundback
- Sir Galileo Galilei
- Sir Harold Humphrey
In which one of the following year, light weight general purpose tractor was invented?
- 1890
- 1899
- 1901
- 1923
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