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Discoveries and inventions Practice Questions & Answers

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Dishwasher was invented by ________.

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Dishwasher was invented by ________.
1). John Barber
2). Sir Henry Cole
3). Josephine Cochrane
4). Bartolomeo Cristofori

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Who discovered Oxygen?

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Who discovered Oxygen?
1). Carl Scheele
2). Hooke
3). Heisenberg
4). Williams

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Who invented the Lightning Rod in 1749?

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Who invented the Lightning Rod in 1749?
1). Benjamin Franklin
2). Nikola Tesla
3). Eli Whitney
4). George Washington

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Who Invented the nuclear reactor?

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Who Invented the nuclear reactor?
1). Enrico Fermi
2). Adolf Gaston Eugen Fick
3). Sandford Fleming
4). Benoit Fourneyron

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Who invented the contact lens?

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Who invented the contact lens?
1). Enrico Fermi
2). Adolf Gaston Eugen Fick
3). Sandford Fleming
4). Benoit Fourneyron