Etch-A-Sketch MCQ App | Inventions MCQ e-Book PDF Download | 26
Inventions MCQs (Grade 8) From Textbook

Inventions MCQs – Mock Test 26

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The "Etch-A-Sketch MCQ" App Download (iOS & Android): Etch-A-Sketch was discovered by; MCQ with answers: sir narinder singh kapany, sir gideon sundback, sir ernest lawrence, and arthur granjean. Practice inventions and inventors questions and answers, Apple Book to download free chapter to access invention cloud learning.

Etch-A-Sketch MCQ PDF Download – Mock Test 26

MCQ 126: Etch-A-Sketch was discovered by:

  1. Sir Gideon Sundback
  2. Sir Narinder Singh Kapany
  3. Arthur Granjean
  4. Sir Ernest Lawrence

MCQ 127: The piano was patented by an Italian instrument maker in:

  1. Germany
  2. England
  3. France
  4. Italy

MCQ 128: Toothbrush was invented by:

  1. Sir Neil Harphan
  2. Sir William Addis
  3. Sir Sue O Connor
  4. Sir Nikola Tesla

MCQ 129: The telegraph was invented by:

  1. Sir William George Horner
  2. Sir Percy Spencer
  3. Sir Samuel Morse
  4. Sir Waldemar Jungner

MCQ 130: In which one of the following year, Aberdeen Chronograph was patented?

  1. 1925
  2. 1918
  3. 1977
  4. 1965

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