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 Inventions Questions

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Q:

Who invented Fountain Pen?

A) Sir Frank Whittle B) John J. Loud
C) Kirkpatrick Macmillan D) Lewis E. Waterman
 
Answer & Explanation Answer: D) Lewis E. Waterman

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Q:

Who Discovered The Nucleus of a Cell?

A) Otto Hahn B) John Dalton
C) Robert Brown D) Marie Curie
 
Answer & Explanation Answer: C) Robert Brown

Explanation:

Robert Brown, Scottish botanist, Discovered The Nucleus of a Cell in 1831, London. When Brown was studying orchids under microscope when he observed an opaque area, which he called the "Areola" or "Nucleus", in the cells of the flower's outer layer.

The nucleus was also described by Franz Bauer in 1804 but in detail Robert Brown made it in 1831.

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11 3763
Q:

Who Invented Elevator Safety Brake ?

A) Alfred Bernhard Nobel B) Elisha Graves Otis
C) Percy LeBaron Spencer D) Garrett Augustus Morgan
 
Answer & Explanation Answer: B) Elisha Graves Otis

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Q:

Which object, initially called the 'Whirlwind', was invented by Ives McGaffey in 1869 ?

A) Washing machine B) Electric mixer
C) Vacuum cleaner D) Blender
 
Answer & Explanation Answer: C) Vacuum cleaner

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Q:

Who is the inventor of railway engine?

A) George Stephenson B) W.H.F Tablot
C) Richard Trevithik D) Eli Whitney
 
Answer & Explanation Answer: C) Richard Trevithik

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Q:

Who is the inventor of railway engine?

A) George Stephenson B) W.H.F Talbot
C) Richard Trevithik D) Eli Whitney
 
Answer & Explanation Answer: C) Richard Trevithik

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1 3636
Q:

What charge card, developed in 1950, was the first to be approved nationally in the US?

A) Discover B) MasterCharge
C) Visa D) Diner's Club
 
Answer & Explanation Answer: D) Diner's Club

Explanation:

 

The card was established by Frank McNamara and Ralph Schneider.

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4 3600
Q:

What Thomas Davenport invented?

A) Screw propellor B) Electric streetcar
C) Chesterfield D) Sleeping (railway) car
 
Answer & Explanation Answer: A) Screw propellor

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