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Free Bar Code Study App Download (iOS & Android): First bar code was issued in; MCQ with answers: 1988, 1911, 1918, and 1952. Practice inventions and inventors questions and answers, Apple Book to download free chapter to access invention educational assistance.

Bar Code MCQ – Mock Test 10 PDF Download

MCQ 46: The first bar code was issued in:

  1. 1911
  2. 1988
  3. 1952
  4. 1918

MCQ 47: The diesel engine was invented by a famous mechanical engineer named as:

  1. Dr Dennis Colonello
  2. Sir T.E Rayan
  3. Sir Norman Rolston
  4. Sir Rudolph Diesel

MCQ 48: In which one of the following year, bubble gum was invented?

  1. 1911
  2. 1928
  3. 1957
  4. 1930

MCQ 49: The very first system for refrigerating water to produce ice was developed by:

  1. Sir Rudolph Diesel
  2. Sir Josef
  3. Sir Etienne Montgolfier
  4. John Gorric

MCQ 50: The first photographic process was invented by:

  1. Sir Nikola Tesla
  2. Sir Otto Blathy
  3. Sir Nicephore Niepce
  4. Sir Samuel Morse

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