The invention of the common high-pressure kitchen pressure cooker ('Digester') was invented by whom in 1679? MCQ with Answer and Explanation

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The invention of the common high-pressure kitchen pressure cooker ('Digester') was invented by whom in 1679?

A. James Watt

B. Blaise Pascal

C. Robert Boyle

D. Denis Papin

Answer: Option D

Solution (By JKSSB Mock Tests)

French physicist Denis Papin invented the steam digester, which raised boiling temperatures by trapping internal steam pressure.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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The invention of the carbon filament telephone transmitter (microphone) that improved long-distance audio was done by whom?

A. Nikola Tesla

B. Alexander Graham Bell

C. David Edward Hughes

D. Thomas Edison

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Correct Answer: Option D

Explanation:
Thomas Alva Edison invented the highly efficient carbon microphone, which became standard for telephone transmitters for decades.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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Who developed the first successful polio vaccine in 1955?

A. Albert Sabin

B. Edward Jenner

C. Louis Pasteur

D. Jonas Salk

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Correct Answer: Option D

Explanation:
Jonas Salk developed the first successful inactivated polio vaccine (IPV) in 1955, while Albert Sabin later developed the oral polio vaccine.

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Question #3

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The invention of the common computing structural code system known as the ASCII format was directed by whom?

A. Dennis Ritchie

B. Bill Gates

C. Bob Bemer and the ASA committee

D. Alan Turing

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Correct Answer: Option C

Explanation:
Bemer led the standardization of the American Standard Code for Information Interchange in 1963, unifying electronic alpha-numeric notation.

This question belongs to: Static General Knowledge Inventions and Discoveries

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