Who is known for inventing the first commercially viable steam engine with a separate condenser? MCQ with Answer and Explanation

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Who is known for inventing the first commercially viable steam engine with a separate condenser?

A. George Stephenson

B. Robert Fulton

C. Thomas Newcomen

D. James Watt

Answer: Option D

Solution (By JKSSB Mock Tests)

James Watt radically improved the Newcomen steam engine by introducing a separate condenser, driving the Industrial Revolution.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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Who discovered the protozoan parasite causing Malaria in human red blood cells?

A. Louis Pasteur

B. Robert Koch

C. Ronald Ross

D. Charles Alphonse Laveran

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Correct Answer: Option D

Explanation:
Charles Alphonse Laveran discovered the malaria parasite in 1880, winning the Nobel Prize in 1907. Sir Ronald Ross later discovered that mosquitoes transmit it.

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Question #2

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Who discovered the law of electromagnetic induction in 1831?

A. James Clerk Maxwell

B. Heinrich Hertz

C. Hans Christian Ørsted

D. Michael Faraday

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Correct Answer: Option D

Explanation:
Michael Faraday discovered electromagnetic induction, leading to the development of electric generators and transformers.

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Question #3

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Who discovered that light rays produce specialized structural ring patterns when passing through convex lenses resting on flat glass sheets?

A. Isaac Newton

B. Christiaan Huygens

C. Robert Hooke

D. Thomas Young

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Correct Answer: Option A

Explanation:
Newton's Rings are an interference pattern caused by the reflection of light between two surfaces, which Newton documented in detail.

This question belongs to: Static General Knowledge Inventions and Discoveries

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