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General knowledge question and answer on Inventions



1
Air conditioner was discovered by
A.    Edison
B.    Wilson
C.    Carrier
D.    Roentgen

Answer : C.  Carrier

2
Who invented logarithms?
A.    Mandeleef
B.    Shockley
C.    Amundson
D.    John Napier

Answer : D.  John Napier

3
Roentgen discovered
A.    Electrocardiograph
B.    X–rays
C.    Encephalograph
D.    Anti polio vaccine

Answer : B.   X–rays

4
Electrons were discovered by
A.    Newton
B.    Roentgen
C.    J.J.Thompson
D.    Edison

Answer : C.  J.J.Thompson

5
Television was invented by
A.    Sholes
B.    Shockley
C.    J.L.Baird
D.    John Napier

Answer : C.  J.L.Baird

6
Penicillin was invented by Fleming in the year.
A.    1842
B.    1929
C.    1945
D.    1951

Answer : B.   1929



7
Fax machine was invented by
A.    Daimler
B.    Bain
C.    Dewar
D.    None of these

Answer : B.   Bain

8
Deficiency of iodine cause
A.    fever
B.    thyroid malfunction
C.    skin disease
D.    indigestion

Answer : B.   thyroid malfunction