Afforestation and Pollution Free World

1.
Who invented the telephone?
(a) Thomas Alva Edison
(b) Galileo
(c) Alexander Graham Bell
(d) G. Marconi
Answer: (c)
2.
Who invented the railway engine?
(a) Charles Babbage
(b) Isaac Newton
(c) James Watt
(d) George Stephenson
Answer: (d)
3.
Who invented Radar?
(a) Henrey Becquerel
(b) Max Planck
(c) Robert Watson Watt
(d) Humphrey Davy
Answer: (c)
4.
Who invented polio vaccine (oral)?
(a) Albert Sabin
(b) Burkholder
(c) Luise Pasture
(d) Jonas Salk
Answer: (a)
5.
Who developed the small pox vaccination?
(a) Eduard Jenner
(b) Alexander Fleming
(c) Albert Einstein
(d) None of these
Answer: (a)
6.
Which one of the following was to be discovered first in the chromosphere of the sun
(a) Helium
(b) Neon
(c) Xenon
(d) Krypton
Answer: (a)

7.
Which famous inventor ranks second in the number of patents registered?
(a) Thomas Alva Edison
(b) James Watt
(c) Albert Einstein
(d) Edwin Land
Answer: (d)
8.
What famous scientist and inventor participated in the invention of the Aqua-Lung?
(a) Thomas Edison
(b) Isaac Newton
(c) Leonardo da Vinci
(d) Jacques Cousteau
Answer: (d)

9.
Vulcanised rubber was invented by
(a) Charles Goodyear
(b) William Stockes
(c) J.E.Lundstrom
(d) Sir Joseph Swann
Answer: (A)
10.
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
Answer: (a)
11.
The steam engine was invented by
(a) William Stockes
(b) J.E.Lundstrom
(c) Sir Joseph Swann
(d) James Watt
Answer: (D)
12.
Laser was invented by
(a) Dr.Charles H. Townes
(b) Edwin Hubble
(c) Albert Einstein
(d) S. Chandrasekhar
Answer: (a)

13.
The revolver was invented by
(a) Eduard Jenner
(b) Alexander Fleming
(c) Albert Einstein
(d) Samuel Colt
Answer: (d)
14.
The refrigerator was invented by
(a) J.Perkins
(b) Alexander Fleming
(c) Albert Einstein
(d) Benjamin Franklin
Answer: (a)