Inventions GK Questions and Answers – Part 12

111. What Henry Bessemer invented?
A. Aluminum
B. Electroplating
C. Steel Converter
D. Steel rolling mill
Answer:
C. Steel Converter
Explanation:
Invented in 1856.

112. What invention was first installed at a Hartford, Connecticut bank in 1889?
A. Automatic teller machine
B. Time-lock safe
C. Burglar alarm
D. Pay telephone
Answer:
D. Pay telephone
Explanation:
William Gray, inventor of the pay telephone, also invented the inflatable chest protector worn by baseball umpires and catchers.

113. Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?
A. Golf tee
B. Motorboat
C. Water skis
D. Hang glider
Answer:
C. Water skis
Explanation:
The new item was first used on Lake Pepin in Minnesota.

114. Who invented Bifocal Lens?
A. Alfred B. Nobel
B. Thomas Alva Edison
C. Benjamin Franklin
D. Rudolf Diesel
Answer:
C. Benjamin Franklin

115. What Karl Benz invented?
A. Gasoline powered automobile
B. Streetcar
C. Glider
D. Steam turbine
Answer:
A. Gasoline powered automobile
Explanation:
Invented in 1885.

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