The invention of the diesel engine is named after which German mechanical engineer? MCQ with Answer and Explanation

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The invention of the diesel engine is named after which German mechanical engineer?

A. Nikolaus Otto

B. Gottlieb Daimler

C. Karl Benz

D. Rudolf Diesel

Answer: Option D

Solution (By JKSSB Mock Tests)

Rudolf Diesel designed a high-efficiency compression-ignition internal combustion engine, patented in 1893.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

The first modern steam locomotive, 'Rocket', was built by which engineer?

A. Thomas Newcomen

B. Richard Trevithick

C. George Stephenson

D. James Watt

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Correct Answer: Option C

Explanation:
George Stephenson and his son Robert built the 'Rocket' in 1829, setting the standard for future steam railways.

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Question #2

The invention of the common electrical structural device known as the coaxial cable was patented in its modern form by whom?

A. Alexander Graham Bell

B. Lloyd Espenschied and Herman Affel

C. Nikola Tesla

D. Michael Faraday

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Correct Answer: Option B

Explanation:
Espenschied and Affel engineered the concentric dual-conductor configuration at Bell Labs in 1929 for high-frequency radio networks.

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Question #3

Who discovered the fundamental principle of chemical thermodynamics relating free energy, enthalpy, and entropy?

A. Josiah Willard Gibbs

B. Sadi Carnot

C. James Joule

D. Lord Kelvin

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Correct Answer: Option A

Explanation:
Josiah Willard Gibbs formulated Gibbs Free Energy ($G = H - TS$), establishing mathematical precision within physical chemistry.

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