GK  Inventions  Prepare Q&A

1. Who invented Gramophone?

Michael Faraday Fahrenheit Sir Alexander Graham Bell Thomas Alva Edison

2. Who invented Internal Combustion engine?

Roger Bacon Karl Benz Dr. Alan M. Turing Otto

3. In which year was MIDI introduced?

1987 1983 1973 1977

4. Who invented fuel cells in 1839?

Buckminster Fuller Sir William Grove Sylvester Graham Joyce Hall

5. What George Pullman invented?

Sleeping (railway) car Airship Box car (railway) Air brakes

6. When was Monopoly created?

1940s 1930s 1920s 1950s


Cohen & Boyer Hunt & Davids Sinclair & Roberts Jaysson & Simons

8. In which decade were the first successful diode and triode vacuum tubes invented?

1800s 1880s 1890s 1900s

9. What Elmer A. Sperry invented?

Hydroplane Hydraulic turbine Magnetic compass Gyrocompass

10. What item, originally called the Whirlwind, was invented by Ives McGaffey in 1869?

Blender Electric mixer Washing machine Vacuum cleaner


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