Inventions Learning App | Loudspeaker MCQs e-Book PDF

Inventions MCQs (Grade 8) From Textbook

Inventions MCQs – Mock Test 16

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Learn Loudspeaker Multiple Choice Questions (MCQs) and Answers PDF (Loudspeaker MCQs PDF e-Book) download Test 16 to study inventions online courses. Solve Inventions and Inventors MCQ Notes questions, Loudspeaker Multiple Choice Questions (MCQ) for invention educational platforms. Free Inventions MCQs App: Download the Loudspeaker Study App to study pocket watch, astronomer, scotch tape, loudspeaker test prep for invention digital academic engagement.

Free "Inventions MCQs" App (iOS & Android) with MCQ: Loudspeaker was discovered by; with answers: sir arthur sicard, sir gideon sundback, sir alexander graham bell, and sir neil harphan for invention educational platforms. Practice inventions and inventors questions and answers, Apple Book to download free chapter to learn scientific inventions.

Loudspeaker MCQs – Mock Test 16 PDF Download

MCQ 76: A loudspeaker was discovered by:

  1. Sir Gideon Sundback
  2. Sir Arthur Sicard
  3. Sir Neil Harphan
  4. Sir Alexander Graham Bell

MCQ 77: Scotch Tape was invented by:

  1. Sir Frances Gabe
  2. Sir George Beers
  3. Sir Richard Drew
  4. Sir T.J Blachut

MCQ 78: Which one of the following was an American astronomer who demonstrates the existence of other galaxies?

  1. Sir Henry Ruttan
  2. Sir John Cunningham McLennan
  3. Dr Larry wang
  4. Sir Edwin Hubble

MCQ 79: The pocket watch was invented by:

  1. Sir Peter Henlein
  2. Sir Gideon Sundback
  3. Sir Galileo Galilei
  4. Sir Harold Humphrey

MCQ 80: In which one of the following year, light weight general purpose tractor was invented?

  1. 1890
  2. 1899
  3. 1901
  4. 1923

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