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This is a timed quiz. You will be given 120 seconds to answer all questions. Are you ready?
120
Who among the following invented the Steel Converter?
Correct!
Wrong!
Who invented Electric Generator?
Correct!
Wrong!
Who is often called the 'first African-American' inventor?
Correct!
Wrong!
Who invented Bifocal Lens?
Correct!
Wrong!
What invention is credited to the Russian born American inventor Vladimir Kosma Zworykin?
Correct!
Wrong!
In which decade was the telegraph invented?
Correct!
Wrong!
Gasoline powered automobile was invented by?
Correct!
Wrong!
In which decade was the transistor invented?
Correct!
Wrong!
General Knowledge quiz 63
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