Inventions & Discoveries MCQs - General Knowledge Questions and Answers | Page-2

11 Who invented Portland cement?
A Joseph Aspdin
B Denis Gason
C Percy L. Spencer
D Leonardo da Vinci

Answer: Option [A]
12 Who invented the Jet Engine?
A Karl Benz
B Thomas Savery
C Sir Frank Whittle
D Michael Faraday

Answer: Option [C]
13 X-rays were discovered by
A Marie Curie
B Van Lue
C Becquerel
D Roentgen

Answer: Option [D]
14 Who is known as ‘the Father of Geometry’?
A Kepler
B Aristotle
C Euclid
D Pythagoras

Answer: Option [C]
15 Who invented the polio vaccine (oral)?
A Robert Koch
B Albert Sabin
C Jonas Salk
D Burkholder

Answer: Option [B]
16 Who invented Radar?
A P.T. Farnsworth
B J. H. Van Tassel
C Wilhelm K. Roentgen
D A. H. Taylor and Leo C. Young

Answer: Option [D]
17 Who invented the laser?
A T. H. Maiman
B Fred Morrisson
C Sir Frank Whittle
D Dr. Charles H. Jones

Answer: Option [A]
18 The first thermionic valve was invented by
A Lee De Forest
B J. A. Fleming
C Richardson
D Thomas Edison

Answer: Option [B]
19 The telephone was invented by:
A G. Marconi
B J. L. Baird
C Thomas Barrow
D Alexander Graham Bell

Answer: Option [D]
20 Who is associated with the invention of Nylon?
A Louis Pasteur
B John Corbutt
C J. Nicephore Niepce
D Dr. Wallace H. Carothers

Answer: Option [A]

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