Exercise : Inventions MCQ Questions and Answers
Question 1
Transistors that are used in every electronic product of modern era was invented by
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Correct Answer : A. John Bardeen and Walter Brattain
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Question 2
Oxygen was independently discovered by
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Correct Answer : A. Joseph Priestley
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Question 3
What device for new parents did Ann Moore invent in 1969?
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Correct Answer : A. Infant carrier
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Question 4
What J. B. Dunlop invented?
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Correct Answer : B. Pneumatic rubber tire
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Question 5
Internet (initially "ARPAnet")-
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Correct Answer : D. Leonard Kleinrock
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Question 6
Cholera Bascillus was invented by
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Correct Answer : C. Robert Koch
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Question 7
QWERTY design type writers and computers keyboards is invented by
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Correct Answer : B. Christopher Sholes
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Question 8
When were bar code scanners invented?
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Correct Answer : B. 1970s
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Question 9
Which famous inventor ranks second in the number of patents registered?
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Correct Answer : D. Edwin Land
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Question 10
The ELECTRIC BATTERY, who's charged with inventing this one?
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Correct Answer : A. Volta
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