Everyday Science MCQs 22

Vulcanised rubber was invented by
(a) Charles Goodyear-✔️
(b) William Stockes
(c) J.E.Lundstrom
(d) Sir Joseph Swann

The system for writing by blind people was invented by
(a) Louis Braille-✔️
(b) Henry Bacquerel
(c) Sir J.A.Fleming
(d) Dr.Charles H. Townes

The steam engine was invented by
(a) William Stockes
(b) J.E.Lundstrom
(c) Sir Joseph Swann
(d) James Watt-✔️

The steam engine was invented by
(a) James Watt-✔️
(b) James Prescott Joule
(c) New Commen
(d) Isaac Newton

The revolver was invented by
(a) Eduard Jenner
(b) Alexander Fleming
(c) Albert Einstein
(d) Samuel Colt-✔️

The refrigerator was invented by
(a) J.Perkins-✔️
(b) Alexander Fleming
(c) Albert Einstein
(d) Benjamin Franklin

The nuclear reactor was invented by
(a) Enrico Ferni-✔️
(b) Eduard Jenner
(c) Alexander Fleming
(d) Albert Einstein Torricelli

The laws of floating bodies was discovered by (a) Pierre Simon de Laplace
(b) Archimedes-✔️
(c) Edwin Hubble
(d) Joseph J. Thomson

The four blood groups were discovered by
(a) Richard Feynman
(b) Karl Landsteiner-✔️
(c) Alfred Wegener
(d) Stephen Hawking

The existence of isotopes was discovered by
(a) Emil Kraepelin
(b) Trofim Lysenko
(c) Frederick Soddy-✔️
(d) Francis Galton