The invention of the common chemical manufacturing system known as the Chamber Process optimized production of what? MCQ with Answer and Explanation

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The invention of the common chemical manufacturing system known as the Chamber Process optimized production of what?

A. Bleaching Powder

B. Sulfuric Acid

C. Soda Ash

D. Nitric Acid

Answer: Option B

Solution (By JKSSB Mock Tests)

John Roebuck patented the lead-chamber method in 1746, enabling the mass production of sulfuric acid, a key chemical of the Industrial Revolution.

This question belongs to: Static General Knowledge Inventions and Discoveries

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The invention of the common medical diagnostic technology known as Ultrasound imaging is based on whose discovery of high-frequency sound physics?

A. René Laennec

B. Alexander Fleming

C. Wilhelm Röntgen

D. Lazzaro Spallanzani and Pierre Curie

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Correct Answer: Option D

Explanation:
Spallanzani studied bat echolocation, and the Curie brothers discovered piezoelectric crystallization, enabling high-frequency echography transducers.

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Question #2

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Who invented the modern electronic television system utilizing a cathode ray tube (CRT)?

A. Philo Farnsworth

B. John Logie Baird

C. Guglielmo Marconi

D. Thomas Edison

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Correct Answer: Option A

Explanation:
Philo Farnsworth invented the first fully functional all-electronic television system with an image dissector camera tube.

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Question #3

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Who invented the first practical electronic pocket calculator, introduced commercially in 1970?

A. Sanyo and Texas Instruments teams

B. Alan Turing

C. Douglas Engelbart

D. Charles Babbage

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Correct Answer: Option A

Explanation:
Sanyo's ICC-0081 and Texas Instruments' 'Cal-Tech' project initiated the mass scaling of hand-held microelectronic computation.

This question belongs to: Static General Knowledge Inventions and Discoveries

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