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Inventions MCQs – Mock Test 142

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Free "Inventions" App (iOS & Android) with MCQ: Process to extract helium from natural gas was invented by; with answers: sir john cunningham mclennan, sir henry ruttan, sir george beers, and dr larry wang for world inventions studies. Practice inventions and inventors questions and answers, Apple Book to download free chapter to improve analytical skills.

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MCQ 706: The process to extract helium from natural gas was invented by:

  1. Sir Henry Ruttan
  2. Sir John Cunningham McLennan
  3. Dr Larry wang
  4. Sir George Beers

MCQ 707: Light Bulb was discovered by an American inventor named as:

  1. Sir Walter Brattain
  2. Sir William Shockley
  3. Sir Thomas Edison
  4. Sir John Stevens

MCQ 708: In which one of the following countries, the production process was discovered?

  1. U.S.A
  2. Canada
  3. London
  4. Egypt

MCQ 709: Cholera vaccine was invented by a Jewish bacteriologist known as:

  1. Sir Edward Jenner
  2. Sir Waldemar Haffkine
  3. Sir James Harrison
  4. Sir Thomas Edison

MCQ 710: Which one of them is considered as the record breaking inventor of 40 Vaccines?

  1. Sir Maurice Hilleman
  2. Sir Etienne Montgolfier
  3. Sir Alfred Nobel
  4. Sir Henri Giffard

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