99+ List of Inventions and Inventors Quiz Questions and Answers with Explanation

Q:

The value of $(\sin^{0} + \cos 0)^{2} =$

A) 1+sin20	B) sin20 +cos20
C) 1+ 2cos0sin0	D)

Answer & Explanation Answer: D)

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Q:

FROZEN FOOD – Who discovered the first practical method of freezing food?

A) C. Birdseye	B) F. Rozenosh
C) G. Findus	D) R. Scott

Answer & Explanation Answer:

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Q:

The first effective vaccine against polio was prepared by ?

A) Robert Edwards	B) James Simpson
C) H Gibbon	D) Jonas E Salk

Answer & Explanation Answer: D) Jonas E Salk

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Q:

Who invented fuel cells in 1839?

A) Buckminster Fuller	B) Sir William Grove
C) Sylvester Graham	D) Joyce Hall

Answer & Explanation Answer: B) Sir William Grove

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Q:

Ralph Samuelson was only 18 when he invented this sporting item in 1922. What was that?

A) Golf tee	B) Motorboat
C) Water skis	D) Hang glider

Answer & Explanation Answer: C) Water skis

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Q:

Atomic theory was devised by

A) Mosley	B) John Dalton
C) Daimler	D) None of these

Answer & Explanation Answer: B) John Dalton

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Q:

Who invented Automobiles using gasoline?

A) Karl Benz	B) Kirk Macmillan
C) Thomas Alva Edison	D) William Ford

Answer & Explanation Answer: A) Karl Benz

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Q:

Air conditioner was discovered by

A) Edison	B) Wilson
C) Carrier	D) Roentgen

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