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Q:

An eudiometer measures

A) Atmospheric pressure B) Time
C) Volume of gases D) Vapour pressure

Answer:   C) Volume of gases



Explanation:
Subject: Inventions
Q:

Who invented the vacuum pump?

A) Otto von Guericke B) Cai Lun
C) Melitta Bentz D) William Henry Fox Talbot
 
Answer & Explanation Answer: A) Otto von Guericke

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Q:

Who invented bluetooth?

A) Kirkpatrick Macmillan B) Benjamin Franklin
C) Dr. Jaap Haartsen D) Charles Babbage
 
Answer & Explanation Answer: C) Dr. Jaap Haartsen

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Q:

Who discovered the colour photography?

A) Robert Noyce B) Enrico Fermi
C) John Logie Baird D) James Clerk Maxwell
 
Answer & Explanation Answer: D) James Clerk Maxwell

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Q:

Who invented the electrocardiogram (ECG)?

A) Willem Einthoven B) Edward Jenner
C) Antonio de Ulloa and Charles Wood D) Karl Benz
 
Answer & Explanation Answer: A) Willem Einthoven

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Q:

Who discovered Sodium?

A) Humphry Davy B) William Henry Fox
C) J.J.Thomson D) Karl Benz
 
Answer & Explanation Answer: A) Humphry Davy

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Q:

Who invented the waterproof raincoat?

A) Robert Hooke B) Cai Lun
C) Charles Macintosh D) William Harvey
 
Answer & Explanation Answer: C) Charles Macintosh

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Q:

Who discovered Penicillin?

A) Edward Jenner B) Niels Bohr
C) Sir Alexander Fleming D) Heinrich Hertz
 
Answer & Explanation Answer: C) Sir Alexander Fleming

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Q:

Who discovered electricity and invented the lightning rod and bifocals?

A) Kirkpatrick Macmillan B) Benjamin Franklin
C) William Henry Fox Talbot D) Sir Alexander Fleming
 
Answer & Explanation Answer: B) Benjamin Franklin

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