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Free download PDF of Discoveries & Inventions general awareness multiple choice questions(MCQs) and answers. These general awareness quiz objective questions answers include mcqs on Jet Engine, Portland cement, X-rays etc.
(11)
Who invented Portland cement?
[A]
Joseph Aspdin
[B]
Denis Gason
[C]
Percy L. Spencer
[D]
Leonardo da Vinci
Comment
(12)
Who invented the Jet Engine?
[A]
Karl Benz
[B]
Thomas Savery
[C]
Sir Frank Whittle
[D]
Michael Faraday
Comment
(13)
X-rays were discovered by
[A]
Marie Curie
[B]
Van Lue
[C]
Becquerel
[D]
Roentgen
Comment
(14)
Who is known as ‘the Father of Geometry’?
[A]
Kepler
[B]
Aristotle
[C]
Euclid
[D]
Pythagoras
Comment
(15)
Who invented the polio vaccine (oral)?
[A]
Robert Koch
[B]
Albert Sabin
[C]
Jonas Salk
[D]
Burkholder
Comment
(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
Comment
(17)
Who invented the laser?
[A]
T. H. Maiman
[B]
Fred Morrisson
[C]
Sir Frank Whittle
[D]
Dr. Charles H. Jones
Comment
(18)
The first thermionic valve was invented by
[A]
Lee De Forest
[B]
J. A. Fleming
[C]
Richardson
[D]
Thomas Edison
Comment
(19)
The telephone was invented by:
[A]
G. Marconi
[B]
J. L. Baird
[C]
Thomas Barrow
[D]
Alexander Graham Bell
Comment
(20)
Who is associated with the invention of Nylon?
[A]
Louis Pasteur
[B]
John Corbutt
[C]
J. Nicephore Niepce
[D]
Dr. Wallace H. Carothers
Comment
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