GK-Invention Question and Answer
GK-Invention Question and Answer
51. What inspired reflecting road lights to be invented?
- Car door reflecting mirrors
- The light a cat's eyes gave off on a fence
- Sun light on steel posts on road sides
- The sun light on the windshield
53. Who invented Electric Generator?
- Sir Alexander Graham Bell
- Michael Faraday
- Alfred B. Nobel
- Thomas Alva Edison
54. What device for new parents did Ann Moore invent in 1969?
- Bottle warmer
- Baby monitor
- Disposable diaper
- Infant carrier
57. What Henry Bessemer invented?
- Aluminum
- Electroplating
- Steel Converter
- Steel rolling mill
58. What invention was first installed at a Hartford, Connecticut bank in 1889?
- Automatic teller machine
- Time-lock safe
- Burglar alarm
- Pay telephone
59. Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?
- Golf tee
- Motorboat
- Water skis
- Hang glider
60. Who invented Bifocal Lens?
- Alfred B. Nobel
- Thomas Alva Edison
- Benjamin Franklin
- Rudolf Diesel