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Inventions MCQs – Mock Test 49

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The MCQ: First mechanical calculator was invented by; "Calculators" App Download [Free] with answers: sir blaise pascal, sir robert noyce, sir thomas edison, and dr raymond lemieux for online school and college. Solve inventions and inventors questions and answers, Google Book to download free chapter for free online courses.

Calculators Quiz – Mock Test 49 PDF Download

MCQ 241: The first mechanical calculator was invented by:

  1. Sir Robert Noyce
  2. Sir Blaise Pascal
  3. Dr Raymond Lemieux
  4. Sir Thomas Edison

MCQ 242: Invention of piano is credited to:

  1. Sir Thomas L. Wilson
  2. Sir James Hillier
  3. Sir Bartolomeo Cristofori
  4. Sir Adolph Rickenbacker

MCQ 243: In which one of the following places an electric wheelchair was invented?

  1. Spain
  2. Italy
  3. Netherlands
  4. Veterans

MCQ 244: The 3 D map-making system was invented by:

  1. Uno Vilho
  2. Dr Dennis Colonello
  3. Dr Larry wang
  4. Sir Norman Rolston

MCQ 245: Lawn sprinkler was invented by:

  1. Sir Elijah McCoy
  2. Sir Joseph Nicephore
  3. Sir William Shockley
  4. John Loudon McAdam

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