Who invented the first practical mechanical refrigerator using vapour compression?
A. Willis Carrier
B. James Harrison
C. Thomas Edison
D. Michael Faraday
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General Knowledge
Who developed the successful four-stroke internal-combustion engine known as the Otto engine?
A. Rudolf Diesel
B. Karl Benz
C. Nikolaus Otto
D. James Watt
Who is credited with building the first practical automobile powered by an internal-combustion engine?
A. Henry Ford
B. Karl Benz
C. Rudolf Diesel
D. George Stephenson
Who invented the safety elevator mechanism that helped prevent elevators from falling if a cable failed?
A. George Stephenson
B. Elisha Otis
C. Thomas Edison
D. Henry Ford
Who designed the Analytical Engine, an early concept for a general-purpose computer?
A. Alan Turing
B. Charles Babbage
C. John von Neumann
D. Herman Hollerith
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Who invented the Morse code system with Alfred Vail?
A. Samuel Morse
B. Thomas Edison
C. Alexander Graham Bell
D. Charles Babbage
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Who is commonly associated with the development of radio communication?
A. Alexander Graham Bell
B. John Logie Baird
C. Guglielmo Marconi
D. James Watt
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Who invented the mechanical television system demonstrated in the 1920s?
A. Thomas Edison
B. Alexander Fleming
C. John Logie Baird
D. Samuel Morse
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