GK  Inventions  Prepare Q&A

1. Who invented Gramophone?

Michael Faraday Fahrenheit Sir Alexander Graham Bell Thomas Alva Edison

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2. Who invented Internal Combustion engine?

Roger Bacon Karl Benz Dr. Alan M. Turing Otto

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3. In which year was MIDI introduced?

1987 1983 1973 1977

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4. Who invented fuel cells in 1839?

Buckminster Fuller Sir William Grove Sylvester Graham Joyce Hall

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5. What George Pullman invented?

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

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6. When was Monopoly created?

1940s 1930s 1920s 1950s

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7. Who perfected GENETIC ENGINEERING?

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

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

1800s 1880s 1890s 1900s

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9. What Elmer A. Sperry invented?

Hydroplane Hydraulic turbine Magnetic compass Gyrocompass

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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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