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 Inventions Questions

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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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Q:

Twice the difference between two numbers is equal to their sum. If one number is 15,find the other number.

 

A) 15 B) 10
C) 5 D) 20
 
Answer & Explanation Answer: C) 5

Explanation:
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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:
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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:
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Q:

Revolver discovered by

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

Explanation:
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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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Q:

Cinematography was invented by

A) Graham Bell B) Edison
C) Zeiss D) Faraday
 
Answer & Explanation Answer: B) Edison

Explanation:
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Q:

Who invented Radar?

A) Henrey Backquerel B) Max Planck
C) Robert Watson Watt D) Humphrey Davy
 
Answer & Explanation Answer: C) Robert Watson Watt

Explanation:

Who_invented_Radar1556273104.jpg image

RADAR stands for Radio Detection and Ranging.

Radar is a detecting system that uses radio waves to determine the range, angle, or velocity of objects. It operates in the ultra-high-frequency of the radio-frequency (RF) spectrum.

 

Uses ::

To detect

aircraft,

ships,

spacecraft,

guided missiles,

motor vehicles,

weather formations, and

terrain.

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