Bar Code Quiz Questions and Answers PDF - 10

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