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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:   C) Richard Trevithik

Explanation:
Subject: Inventions
Q:

Who is known as inventor of World Wide Standard Time ?

A) Sandford Fleming B) Fredrich
C) Williamson D) James Broot
 
Answer & Explanation Answer: A) Sandford Fleming

Explanation:

Sir Sandford Fleming, (January 7, 1827 – July 22, 1915) was a Scottish Canadian engineer and inventor. Born and raised in Scotland, he emigrated to colonial Canada at the age of 18. He proposed worldwide standard time zones, designed Canada's first postage stamp.

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2 124
Q:

Who invented waterproof fabrics ?

A) James Dewar B) Charles Goodyear
C) Mary Moore D) Charles Macintosh
 
Answer & Explanation Answer: D) Charles Macintosh

Explanation:

Charles Macintosh (29 December 1766 – 25 July 1843) was a Scottish chemist and inventor of waterproof fabrics.He devoted all his spare time to science, particularly chemistry, and before he was twenty resigned his clerkship to take up the manufacture of chemicals. In this he was highly successful, inventing various new processes. His experiments with one of the by-products of tar, naphtha, led to his invention of waterproof fabrics.

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6 226
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

Explanation:
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1 125
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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1 117
Q:

We remember Charles Babbage (1792-1871)for what ........

 

A) Computers B) Radio-Telegraphy
C) Steam Boating D) Telescopes
 
Answer & Explanation Answer: A) Computers

Explanation:
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