The invention of the first practical steam engine, the atmospheric engine, was completed by whom? MCQ with Answer and Explanation

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The invention of the first practical steam engine, the atmospheric engine, was completed by whom?

A. Thomas Savery

B. George Stephenson

C. James Watt

D. Thomas Newcomen

Answer: Option D

Solution (By JKSSB Mock Tests)

Thomas Newcomen constructed the first practical piston-driven condensing atmospheric engine in 1712 to pump water from mines.

This question belongs to: Static General Knowledge Inventions and Discoveries

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The invention of the common mechanical marine escape capsule configuration was engineered by whom?

A. Alexander Mitchell

B. Cornelis Drebbel

C. John Ericsson

D. Robert Fulton

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Correct Answer: Option D

Explanation:
Fulton optimized underlying physical buoyancy balances, generating early blueprints for underwater tracking and marine transport apparatus.

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Question #2

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The invention of the common mechanical device known as the industrial centrifugal cream separator was patented by whom?

A. Cyrus McCormick

B. James Watt

C. Gustaf de Laval

D. Eli Whitney

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Correct Answer: Option C

Explanation:
De Laval patented the high-speed continuous centrifugal cream separator in 1878, streamlining commercial dairy production.

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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. Bob Bemer and the ASA committee

B. Dennis Ritchie

C. Bill Gates

D. Alan Turing

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Correct Answer: Option A

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

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