Sawaal

 Inventions Questions

Popular Latest Rated
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.

Report Error

View Answer Report Error Discuss

Filed Under: Inventions
Exam Prep: AIEEE , Bank Exams
Job Role: Analyst , Bank Clerk , Bank PO

56 22799
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:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

26 17150
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”.

Report Error

View Answer Report Error Discuss

Filed Under: Inventions

70 15605
Q:

Helicopter was invented by

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

57 13690
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).

Report Error

View Answer Report Error Discuss

Filed Under: Inventions

28 13110
Q:

Who had an explosive idea and first patented DYNAMITE?

A) J. R. Gluber B) A. Nobel
C) G. Fawks D) W. Bickford
 
Answer & Explanation Answer: B) A. Nobel

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

10 11031
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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

21 10972
Q:

Revolver discovered by

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

Explanation:
Report Error

View Answer Report Error Discuss

Filed Under: Inventions

29 10447