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Q:

Who is known as inventor of World Wide Standard Time ?

A) Sandford Fleming B) Fredrich
C) Williamson D) James Broot

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.

Subject: Inventions
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Q:

Who designed the first electronic computer ENIAC?

A) J presper Eckert and John W Mauchly B) John W Mauchly and Joseph M Jacquard
C) J presper Eckert and Von Neuman D) None of the above
 
Answer & Explanation Answer: A) J presper Eckert and John W Mauchly

Explanation:
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Q:

Who invented FM radio?

A) Edwin Howard Armstrong B) Thomas Alva Edison
C) Graham Bell D) Galileo
 
Answer & Explanation Answer: A) Edwin Howard Armstrong

Explanation:
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0 164
Q:

Who invented Radio?

A) Grahambell B) Galileo
C) Marconi D) Edison
 
Answer & Explanation Answer: C) Marconi

Explanation:

Guglielmo Marconi, an Italian invetor invented Radio in 1890's.

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0 162
Q:

The credit of inventing the television goes to

A) Philo Farnsworth B) John Logie Baird
C) Charles Francis Jenkins D) None of the above
 
Answer & Explanation Answer: A) Philo Farnsworth

Explanation:

The credit of inventing the television goes to Philo Farnsworth. Electronic television was first successfully demonstrated in San Francisco on Sept. 7, 1927.

 

The_credit_of_inventing_the_television_goes_to1549279715.jpg image

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0 201
Q:

Which among the following is not correctly matched?

A) Parachute: W H carothers B) Barometer: Torricelli
C) Cells: Robert Hooke D) X- Ray: W Roentgen
 
Answer & Explanation Answer: A) Parachute: W H carothers

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1 196
Q:

What did Sir William Herschel discover in 1800?

A) Ultraviolet rays B) Infra-red radiation
C) X rays D) Microwaves
 
Answer & Explanation Answer: B) Infra-red radiation

Explanation:

Sir William Herschel discovered Infra-red radiation in 1800.

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0 198
Q:

In which country the hormone gibberellin was discovered?

A) India B) Japan
C) China D) Russia
 
Answer & Explanation Answer: B) Japan

Explanation:

The hormone gibberellin was discovered in the country Japan.

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0 285
Q:

When was the voting machine invented?

A) 1980 B) 1892
C) 1989 D) 1920
 
Answer & Explanation Answer: B) 1892

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