Inventions Questions

Q:

When were blue jeans invented?

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

Explanation:
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Q:

Analytical Engine was invented by

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

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Q:

What Frank Whittle invented?

A) Radar B) Ethyl gasoline
C) Sonar D) Jet propulsion
 
Answer & Explanation Answer: D) Jet propulsion

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Q:

What Henry Bessemer invented?

A) Aluminum B) Electroplating
C) Steel Converter D) Steel rolling mill
 
Answer & Explanation Answer: C) Steel Converter

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Q:

It travels over land and water. Who invented the HOVERCRAFT?

A) C. Cockerell B) S. Sperrow
C) O. Stricheg D) T. Henman
 
Answer & Explanation Answer: A) C. Cockerell

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Q:

Who is known as inventor of World Wide Standard Time ?

A) Sandford Fleming B) Fredrich
C) Williamson D) James Broot
 
Answer & Explanation Answer: A) Sandford Fleming

Explanation:

Sir Sandford Fleming, (January 7, 1827 – July 22, 1915) was a Scottish Canadian engineer and inventor. Born and raised in Scotland, he emigrated to colonial Canada at the age of 18. He proposed worldwide standard time zones, designed Canada's first postage stamp.

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Q:

The first thermionic valve was invented by

A) Thomas Edison B) Richardson
C) J.A. Fleming D) Lee De Forest
 
Answer & Explanation Answer: C) J.A. Fleming

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Q:

Who invented Electric Generator?

A) Michael Faraday B) Thomas Alva Edison
C) Graham Bell D) Alfred Nobel
 
Answer & Explanation Answer: A) Michael Faraday

Explanation:

Michael Faraday invented Electric Generator in 1831.

 

        • The operating principle of electromagnetic generators was discovered in the years of 1831–1832 by Michael Faraday.

 

        • The principle later called Faraday's law, is that an electromotive force is generated in an electrical conductor which encircles a varying magnetic flux.


 

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