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 Inventions Questions

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Q:

Which scientist discovered the radioactive element radium?

A) Isaac Newton B) Marie Curie
C) Benjamin Franklin D) None of these
 
Answer & Explanation Answer: B) Marie Curie

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Q:

Who invented waterproof fabrics ?

A) James Dewar B) Charles Goodyear
C) Mary Moore D) Charles Macintosh
 
Answer & Explanation Answer: D) Charles Macintosh

Explanation:

Charles Macintosh (29 December 1766 – 25 July 1843) was a Scottish chemist and inventor of waterproof fabrics.He devoted all his spare time to science, particularly chemistry, and before he was twenty resigned his clerkship to take up the manufacture of chemicals. In this he was highly successful, inventing various new processes. His experiments with one of the by-products of tar, naphtha, led to his invention of waterproof fabrics.

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Q:

Typewriter was invented by

A) Shockley B) Sholes
C) Howe D) None of these
 
Answer & Explanation Answer: B) Sholes

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Q:

App to locate board exam centre for students launched by ?

A) CBSE B) IIT
C) JNU D) NCERT
 
Answer & Explanation Answer: A) CBSE

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Q:

Who Invented Contact Lens ?

A) Joel Houghton B) Ruth Graves Wakefield
C) Adolf Gaston Eugen Fick D) John Stith Pemberton
 
Answer & Explanation Answer: C) Adolf Gaston Eugen Fick

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Q:

Who invented logarithms?

A) Mandeleef B) Shockley
C) Amundson D) John Napier
 
Answer & Explanation Answer: D) John Napier

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Q:

Who is the inventor of  printing press?

A) Johann Gutenberg B) William Lee
C) George Eastman D) R.W Thomson
 
Answer & Explanation Answer: A) Johann Gutenberg

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Q:

Between small and large human intestine which one is longer?

 

A) small intestine B) Large intestine
C) Both are equal in length D) Depends on male or female
 
Answer & Explanation Answer: A) small intestine

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