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 Inventions Questions

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Q:

An eudiometer measures

A) Atmospheric pressure B) Time
C) Volume of gases D) Vapour pressure
 
Answer & Explanation Answer: C) Volume of gases

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0 1559
Q:

Piano was invented by ________.

A) John Barber B) Sir Henry Cole
C) Josephine Cochrane D) Bartolomeo Cristofori
 
Answer & Explanation Answer: D) Bartolomeo Cristofori

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Q:

Albert Sabin is known for developing _____.

A) smallpox vaccine B) polio vaccine
C) penicillin D) hepatitis B vaccine
 
Answer & Explanation Answer: B) polio vaccine

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Q:

Who created the first mechanical computer, which proved to be the prototype for future computers?

A) Archimedes B) John Harrison
C) Cai Lun D) Charles Babbage
 
Answer & Explanation Answer: D) Charles Babbage

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Q:

Kaleidoscope was invented by ________.

A) John Barber B) Tim Berners­Lee
C) Alan Blumlein D) David Brewster
 
Answer & Explanation Answer: D) David Brewster

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Q:

Prime Minister Narendra Modi inaugurated India's longest rail-road bridge Bogibeel Bridge in which state?

A) Tripura B) Sikkim
C) Assam D) Arunachal Pradesh
 
Answer & Explanation Answer: C) Assam

Explanation:

* Prime Minister Narendra Modi on 25th Dec 2018 inaugurated the 4.94 km long Bogibeel Bridge in Assam.
* It is India’s longest rail-cum-road road bridge, on the river Bramhaputra.
* The bridge is constructed at an estimated cost of 5,800 crore rupees.
* It is situated 17 km downstream of Dibrugarh city in Assam.

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Q:

Who among the following discovered electron?

A) J.J Thomson B) Max Born
C) Antoine Lavoisier D) Mendeleef
 
Answer & Explanation Answer: A) J.J Thomson

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1 1531
Q:

Sewing machine was invented by

A) Alfred P. Southwick B) Isaac Singer
C) Murasaki Shikibu D) Hanaoka Seishu
 
Answer & Explanation Answer: B) Isaac Singer

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