1.  World's first mechanical air conditioner was invented and manufacture by

a

  Christopher Shole

b

 Charles Perkins

c

 Charles Goodyear

d

 William's Carrier

Answer & Explanation
Answer : Option D

2.  Who designed the city Chandigarh?

a

  Colt

b

 Ferdinand de lesseps

c

 Nasser

d

 Le Corbusier

Answer & Explanation
Answer : Option D

3.  The Solar System was discoverd by

a

  Copernicus

b

 Galleleo

c

 Finsen

d

 None of these

Answer & Explanation
Answer : Option A

4.  In which decade was the transistor invented?

a

  1940s

b

 1950s

c

 1960s

d

 1980s

Answer & Explanation
Answer : Option A

5.  First graphical user interface used commercially after its introduction was popularized as

a

  Apple Lisa

b

 Xerox Star

c

 IBM 610

d

 Both (a) and (b)

Answer & Explanation
Answer : Option D

6.  Who invented the first controllable flying AEROPLANE (AIRPLANE)?

a

  Wright Brothers

b

 Lidenbergh Brothers

c

 South Brothers

d

 West Brothers

Answer & Explanation
Answer : Option A

7.  Lift was invented by

a

  Domagk

b

 Lee De Forest

c

 Otis

d

 None of these

Answer & Explanation
Answer : Option C

8.  Vulcanised rubber was invented by

a

  J.E.Lundstrom

b

 William Stockes

c

 Charles Goodyear

d

 Sir Joseph Swann

Answer & Explanation
Answer : Option C

9.  Printing press was invented by

a

  JohannesGutengerg

b

 Mary Anderson

c

 Victor Adler

d

 George Antheil

Answer & Explanation
Answer : Option A

10.  Helicopter was invented by

a

  Copernicus

b

 Broquet

c

 Drinker

d

 None of these

Answer & Explanation
Answer : Option B

11.  Edwin Herbert Land invented what?

a

  Ball point pen

b

 Polaroid Camera

c

 Type Writer

d

 Liquid paper

Answer & Explanation
Answer : Option B

12.  In which decade with the first transatlantic radio broadcast occur?

a

  1850s

b

 1860s

c

 1870s

d

 1900s

Answer & Explanation
Answer : Option D

13.  What furniture item was invented by California furniture designer Charles Prior Hall in 1968?

a

  Sofa bed

b

 Captain's chair

c

 Waterbed

d

 Hammock

Answer & Explanation
Answer : Option C

14.  Who invented Dynamite?

a

  Thomas Alva Edison

b

 Benjamin Franklin

c

 Sir Alexander Graham Bell

d

 Alfred B Nobel

Answer & Explanation
Answer : Option D

15.  What inspired reflecting road lights to be invented?

a

  Car door reflecting mirrors

b

 The light a cat's eyes gave off on a fence

c

 Sun light on steel posts on road sides

d

 The sun light on the windshield

Answer & Explanation
Answer : Option B

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