1
Q:

What treat was invented by 11-year-old Frank Epperson in 1905?

A) Popsicle B) Banana split
C) Cotton candy D) Cracker Jacks

Answer:   A) Popsicle



Explanation:
Subject: Inventions
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

Explanation:
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0 9
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 15
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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0 116
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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1 77
Q:

Which is an invention that improved safety for railway passengers?

A) Air brakes B) Refrigerated rail cars
C) Time standardization D) Pullman sleeping cars
 
Answer & Explanation Answer: A) Air brakes

Explanation:

An invention that improved safety for railway passengers is Air brakes. With the use of air brakes using compressed air, become more effective by preventing many train accidents.

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0 137
Q:

The credit of inventing the television goes to

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

Explanation:

The_credit_of_inventing_television_goes_to1538375217.jpg image

The credit of inventing the television goes to John Logie Baird.

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0 294
Q:

Which famous scientist unknowingly founded the field of spectroscopy?

A) Issac Newton B) Galileo
C) Graham Bell D) None of the above
 
Answer & Explanation Answer: A) Issac Newton

Explanation:
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0 363
Q:

The cotton gin was an important invention because

Answer

Cotton Gin was invented by Eli Whitney in 1793, which is used to separate cotton seeds from cotton fiber.


 


Hence, it was an important invention because it dramatically reduced the amount of time it took to separate cotton seeds from cotton fiber.

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