Sawaal

 Inventions Questions

Popular Latest Rated
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 Workspace Report Error Discuss

Filed Under: Inventions

59 11129
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 Workspace Report Error Discuss

Filed Under: Inventions

10 11037
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 Workspace Report Error Discuss

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

28 10988
Q:

Helicopter was invented by

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

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Inventions

40 9116
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 Workspace Report Error Discuss

Filed Under: Inventions

20 8466
Q:

Revolver discovered by

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

Explanation:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Inventions

19 7292
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:
Report Error

View Answer Workspace Report Error Discuss

Filed Under: Inventions

11 7107
Q:

In the 1700s,who would pay the postage fee for letters before the stamp was invented?

A) The sender B) There was no fee
C) The receiver of the letter D) The post office
 
Answer & Explanation Answer: C) The receiver of the letter

Explanation:

Later in 1840, Rowland Hill invented the stamp, which was paid for by the sender, not the receiver.

Report Error

View Answer Workspace Report Error Discuss

Filed Under: Inventions

19 6917