General Knowledge quiz 63

This is a timed quiz. You will be given 120 seconds to answer all questions. Are you ready?

120
0%

In which decade was the transistor invented?

Correct! Wrong!

Who among the following invented the Steel Converter?

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What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin?

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Who invented Bifocal Lens?

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Who is often called the 'first African-American' inventor?

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Who invented Electric Generator?

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Gasoline powered automobile was invented by?

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In which decade was the telegraph invented?

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General Knowledge quiz 63
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