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 Inventions Questions

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Q:

D.D.T. was invented by

A) Paul Muller B) John Dalton
C) Rudolf D) None of these
 
Answer & Explanation Answer: A) Paul Muller

Explanation:

Swiss chemist Paul Hermann Muller discovered DDT (dichloro-diphenyl-trichloroethane) noted its effectiveness as a pesticide during World War II to control malaria and typhus among civilians and troops, a discovery that earned him a Nobel Prize in 1948.

 

It was first synthesized in the year 1874.

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50 18919
Q:

What J. B. Dunlop invented?

A) Pneumatic rubber tire B) Automobile wheel rim
C) Rubber boot D) Model airplanes
 
Answer & Explanation Answer: A) Pneumatic rubber tire

Explanation:
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16 15363
Q:

Who is the english physicist responsible for the "Big Bang Theory"?

A) Albert Einstein B) Michael Skube
C) George Gamow D) Roger Penrose
 
Answer & Explanation Answer: C) George Gamow

Explanation:

George Gamow. Gamow, who died in 1968, was a physicist, who published “Thirty Years that Shook Physics”.

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63 14269
Q:

Helicopter was invented by

A) Drinker B) Broquet
C) Copernicus D) Cockrell
 
Answer & Explanation Answer: B) Broquet

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51 12046
Q:

This statesman,politican,scholar,inventor,and one of early presidents of USA invented the swivel chair,the spherical sundial,the moldboard plow,and the cipher wheel.

A) George Washington B) Alexander Hamilton
C) John Adams D) Thomas Jefferson
 
Answer & Explanation Answer: D) Thomas Jefferson

Explanation:

 Thomas Jefferson (April 13, 1743 – July 4, 1826) was the third President of the United States (1801-1809) and the principal author of the Declaration of Independence (1776).

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25 11713
Q:

The most important feature of the Indian Parliament is  that:

A) it is the Union Legislature in India B) it also comprises of the president
C) it is bicameral in nature D) the upper House of the Parliament is never dissolved
 
Answer & Explanation Answer: B) it also comprises of the president

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19 10039
Q:

Revolver discovered by

A) Colt B) Mercafter
C) Bushwell D) Daimler
 
Answer & Explanation Answer: A) Colt

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24 9649
Q:

The first hand glider was designed by…?

A) Leonardo DaVinci B) The Wright brothers
C) Francis Rogallo D) Galileo
 
Answer & Explanation Answer: A) Leonardo DaVinci

Explanation:
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14 9507