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General Knowledge

DISCOVERIES AND INVENTIONS MCQs

Scientists, Inventions & Discoveries

Total Questions : 949 | Page 5 of 95 pages
Question 41. What device for new parents did Ann Moore invent in 1969?
  1.    Bottle warmer
  2.    Baby monitor
  3.    Disposable diaper
  4.    Infant carrier
 Discuss Question
Answer: Option D. -> Infant carrier
Question 42. In which decade was the transistor invented?
  1.    1940s
  2.    1950s
  3.    1960s
  4.    1980s
 Discuss Question
Answer: Option A. -> 1940s
Question 43. What invention was first installed at a Hartford, Connecticut bank in 1889?
  1.    Automatic teller machine
  2.    Time-lock safe
  3.    Burglar alarm
  4.    Pay telephone
 Discuss Question
Answer: Option D. -> Pay telephone
Question 44. Who invented Bifocal Lens?
  1.    Alfred B. Nobel
  2.    Thomas Alva Edison
  3.    Benjamin Franklin
  4.    Rudolf Diesel
 Discuss Question
Answer: Option C. -> Benjamin Franklin
Question 45. Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?
  1.    Golf tee
  2.    Motorboat
  3.    Water skis
  4.    Hang glider
 Discuss Question
Answer: Option C. -> Water skis
Question 46. What Karl Benz invented?
  1.    Gasoline powered automobile
  2.    Streetcar
  3.    Glider
  4.    Steam turbine
 Discuss Question
Answer: Option A. -> Gasoline powered automobile
Question 47. When were bar code scanners invented?
  1.    1940s
  2.    1950s
  3.    1970s
  4.    1960s
 Discuss Question
Answer: Option C. -> 1970s
Question 48. When was the game Frisbee invented?
  1.    1920s
  2.    1900s
  3.    1870s
  4.    1950s
 Discuss Question
Answer: Option C. -> 1870s
Question 49. What piece of clothing was invented by French fashion designer Louis Reard in 1946?
  1.    Zoot suit
  2.    Mini-skirt
  3.    Bikini
  4.    Tank top
 Discuss Question
Answer: Option C. -> Bikini
Question 50. In which year was MIDI introduced?
  1.    1987
  2.    1983
  3.    1973
  4.    1977
 Discuss Question
Answer: Option B. -> 1983

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