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5
Q:

Four pairs of words are Given.Find the odd one out.

 

 

A) Chalk: Slate B) Pencil: Notebook
C) Pen: Ink D) Sketch pen: Drawing Book

Answer:   D) Sketch pen: Drawing Book



Explanation:
Subject: Inventions
Exam Prep: Bank Exams
Related Questions
Q:

Which insurance salesman invented the fountain pen in 1884?

A) Lewis Edson Waterman B) Sir William Grove
C) Charles Kettering D) George Fountain
 
Answer & Explanation Answer: A) Lewis Edson Waterman

Explanation:

Lewis Edson Waterman patented the first practical fountain pen in 1884.

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5 7089
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.

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22 10188
Q:

Cinematography was invented by

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

Explanation:
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20 9628
Q:

Revolver discovered by

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

Explanation:
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27 10558
Q:

Who invented logarithms?

A) Mandeleef B) Shockley
C) Amundson D) John Napier
 
Answer & Explanation Answer: D) John Napier

Explanation:
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2 3377
Q:

Analytical Engine was invented by

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

Explanation:
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5 4257
Q:

Who discovered Insulin

A) William Harvey B) Louis Pasteur
C) F.G.Banting D) Alexander Fleming
 
Answer & Explanation Answer: D) Alexander Fleming

Explanation:
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3 3128
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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Filed Under: Inventions
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18 9595