General Knowledge : : Inventions Questions & Answers

  1. Who invented Dynamo?

A. John Napier

B. Johan Vaaler

C. J.E. Lundstrom

D. Hippolyte Pixii

  1. What Enrico Fermi invented?

A. X-ray machine

B. Betatron

C. Cyclotron

D. Nuclear reactor

  1. Who invented optical fibre?

A. Samuel Cohen

B. Narinder Singh Kapany

C. Percy L.Spencer

D. T.H. Maimah

  1. Who invented the laser?

A. Sir Frank Whittle

B. Fred Morrisson

C. T.H. Maiman

D. Dr. Charles H. Jones

  1. Who invented the Voice Mail?

A. Gordon Matthews

B. Alexander Graham Bell

C. J.A. Fleming

D. V. Poulsen