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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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