Inventions Questions

Q:

Dishwasher was invented by ________.

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

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Q:

Who invented first working laser?

A) A. H. Taylor B) W. K. Roentgen
C) T. H. Maiman D) Fred Morrission
 
Answer & Explanation Answer: C) T. H. Maiman

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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 invented Rocket?

A) Rich K Goyle B) E M Forster
C) Robert Goddard D) James Anderson
 
Answer & Explanation Answer: C) Robert Goddard

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Q:

Which country on 23 October 2017 signed the Paris agreement on climate change, leaving the United States and Syria as the only two countries holding outto sign this global climate pact?

A) Nicaragua B) Colombia
C) Peru D) Uganda
 
Answer & Explanation Answer: A) Nicaragua

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Q:

Who pioneered diagnostic ultrasound?

A) Alexander Fleming B) Ian Donald
C) A. Laveran D) Robert Koch
 
Answer & Explanation Answer: B) Ian Donald

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Q:

Who invented Aerosol can?

A) Erik Rotheim B) Erik Mathew
C) Erik Tim D) Eric Flayer
 
Answer & Explanation Answer: A) Erik Rotheim

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Q:

Who discovered Proton?

A) Ernest Rutherford B) Friedrich Miescher
C) Henri Becquerel D) Henry Cavendish
 
Answer & Explanation Answer: A) Ernest Rutherford

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