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11
Q:

The Gandhi-Irwin pact was signed in the year

 

A) 1930 B) 1931
C) 1932 D) 1933

Answer:   B) 1931



Explanation:
Subject: Inventions
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Fax machine was invented by

A) Daimler B) Dewar
C) Bain D) None of these
 
Answer & Explanation Answer: C) Bain

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1 2038
Q:

Telegrahic code was introduced by

A) Lipman B) Macmillan
C) Thomas Moore D) Cockrell
 
Answer & Explanation Answer: C) Thomas Moore

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0 2034
Q:

The Solar System was discoverd by

A) Galleleo B) Finsen
C) Copernicus D) None of these
 
Answer & Explanation Answer: C) Copernicus

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0 2072
Q:

Stethoscope was invented by

A) Bessemer B) Rane Laennec
C) Henry Becquarrel D) none of these
 
Answer & Explanation Answer: B) Rane Laennec

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1 2538
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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29 13192
Q:

When were blue jeans invented?

A) 1900s B) 1850s
C) 1860s D) 1870s
 
Answer & Explanation Answer: C) 1860s

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11 4762
Q:

When were bar code scanners invented?

A) 1940s B) 1950s
C) 1960s D) 1970s
 
Answer & Explanation Answer: D) 1970s

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1 2659
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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