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Letter Box Quiz App Download | Inventions PDF e-Book

Inventions Entrance Exam: Mock Test 13

Letter Box Quiz Questions and Answers PDF Download - 13

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The Letter Box Quiz Questions and Answers PDF (Letter Box Quiz with Answers PDF e-Book) download Test 13 to learn inventions online courses. Practice Inventions and Inventors Notes questions, Letter Box Multiple Choice Questions (MCQ) for online college degrees. The Letter Box Quiz App Download: Free Inventions Quiz App to learn standard time, abdominizer, ceiling fan, revolver, letter box test prep for online school classes.

The Quiz: First letter-box was discovered by "Letter Box" App Download [Free] with answers: sir albert potts, sir jack kilby, alexander fleming, and sir hans von ohain for online learning. Solve inventions and inventors questions and answers, Google Book to download free sample for online learning.

Letter Box Questions and Answers PDF Download: Quiz 13

MCQ: 61

The first letter-box was discovered by

  1. Sir Jack Kilby
  2. Sir Albert Potts
  3. Sir Hans von Ohain
  4. Alexander Fleming
MCQ: 62

The Revolver was invented by

  1. Sir Samuel Colt
  2. Dr Raymond Lemieux
  3. Sir Robert Fulton
  4. Dr Dennis Colonello
MCQ: 63

The ceiling fan was invented by an American electrical engineer named as

  1. Sir Nikola Tesla
  2. Sir Rudolf Diesel
  3. Sir Schuyler Skaats Wheeler
  4. Sir James Hillier
MCQ: 64

Infomercial exercise was invented by a renowned inventor named as

  1. Sir Norman Rolston
  2. Sirr James Naismith
  3. Dr Dennis Colonello
  4. Sir Thomas L. Wilson
MCQ: 65

Standard time was invented by

  1. Sir T.J Blachut
  2. Sir Cyril Duquet
  3. Sir Sanford Fleming
  4. Sir Reginald A. Fessenden

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Letter Box Quiz App (Android & iOS)

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