The invention of the high-strength industrial tool steel alloy known as tungsten steel was pioneered by whom? MCQ with Answer and Explanation

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The invention of the high-strength industrial tool steel alloy known as tungsten steel was pioneered by whom?

A. Andrew Carnegie

B. Henry Bessemer

C. Robert Forester Mushet

D. James Watt

Answer: Option C

Solution (By JKSSB Mock Tests)

Mushet patented self-hardening tungsten tool steel in 1868, allowing factory metal lathe tools to retain sharpness at high cutting speeds.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered that certain types of organic crystals display liquid fluid mobility while maintaining optical structural alignment, founding Liquid Crystals?

A. Friedrich Reinitzer

B. Otto Lehmann

C. Justus von Liebig

D. Leo Baekeland

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Correct Answer: Option A

Explanation:
Austrian botanist Reinitzer discovered the distinct dual melting profile of cholesteryl benzoate in 1888.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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The fundamental laws of electric resistance ($V = IR$) were discovered by which physicist?

A. Georg Simon Ohm

B. Alessandro Volta

C. André-Marie Ampère

D. James Watt

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Correct Answer: Option A

Explanation:
Georg Simon Ohm discovered the direct proportionality between voltage and current across a conductor, known as Ohm's Law.

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Question #3

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The invention of the highly efficient multi-plate safety storage match box strip containing antimony trisulfide was pioneered where?

A. Sweden

B. Germany

C. England

D. United States

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Correct Answer: Option A

Explanation:
Swedish manufacturing optimization made safety matches affordable and standard globally during the 19th century.

This question belongs to: Static General Knowledge Inventions and Discoveries

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