Top 150 Inventions||Inventions and discoveries GK in The world||English || Free PDF

121. The inventor of the first practical sewing machine was: -

a) Elias Howe   

b) Isaac Singer   

c) Walter Hunt   

d) Charles Babbage   

122. Who invented the first practical electric generator?   

a) Michael Faraday   

b) Nikola Tesla   

c) Thomas Edison   

d) Alexander Graham Bell   

123. The inventor of the first practical refrigerator was: -

a) James Harrison   

b) John Gorrie   

c) Carl von Linde   

d) William Cullen   

124. Who invented the first practical color photography process?   

a) Gabriel Lippmann   

b) Louis Daguerre   

c) James Clerk Maxwell   

d) George Eastman   

125. The inventor of the first practical telephone was: -

a) Alexander Graham Bell   

b) Thomas Edison   

c) Nikola Tesla   

d) Elisha Gray   

126. Who invented the first practical electric light bulb?   

a) Thomas Edison   

b) Nikola Tesla   

c) Humphry Davy   

d) Joseph Swan   

127. The inventor of the first practical x-ray machine was: -

a) Wilhelm Roentgen  

b) Marie Curie   

c) Henri Becquerel   

d) James Clerk Maxwell   

128. Who invented the first practical phonograph?   

a) Thomas Edison   

b) Alexander Graham Bell   

c) Emile Berliner   

d) John Philip Sousa   

130. The inventor of the first practical movie camera was: -

a) Thomas Edison   

b) Louis Lumière   

c) Auguste Lumière   

d) Georges Méliès   

Inventions and discoveries GK in The world

Important Topics:

1. Space GK
2. General knowledge

Quiz:

1. World GK
2. Space GK
3. General knowledge

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