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Q:

In the 1700s,who would pay the postage fee for letters before the stamp was invented?

A) The sender B) There was no fee
C) The receiver of the letter D) The post office

Answer:   C) The receiver of the letter



Explanation:

Later in 1840, Rowland Hill invented the stamp, which was paid for by the sender, not the receiver.

Subject: Inventions
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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0 192
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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0 192
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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0 218
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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1 232
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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0 216
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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0 316
Q:

When was the voting machine invented?

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

Explanation:
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