The invention of the common industrial building safety device known as the wire rope cable line was patented by whom? MCQ with Answer and Explanation

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The invention of the common industrial building safety device known as the wire rope cable line was patented by whom?

A. Henry Bessemer

B. Elisha Otis

C. Wilhelm Albert

D. George Stephenson

Answer: Option C

Solution (By JKSSB Mock Tests)

German mining engineer Wilhelm Albert fabricated twisted iron wire ropes in 1834 to replace hemp mine hoist chains.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who discovered the phenomenon of nuclear magnetic resonance (NMR), which forms the basis of modern MRI scanners?

A. Isidor Isaac Rabi

B. Paul Lauterbur

C. Felix Bloch

D. Peter Mansfield

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Correct Answer: Option A

Explanation:
Isidor Isaac Rabi discovered nuclear magnetic resonance in 1938, for which he was awarded the Nobel Prize in Physics in 1944.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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Who discovered the principles of vaccination, microbial fermentation, and pasteurization?

A. Louis Pasteur

B. Antonie van Leeuwenhoek

C. Robert Koch

D. Edward Jenner

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Correct Answer: Option A

Explanation:
Louis Pasteur's extensive contributions include vaccines for rabies and anthrax, pasteurization, and germ theory breakthroughs.

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Question #3

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Who invented the first practical electronic calculator utilizing a microprocessor chip?

A. John von Neumann

B. Alan Turing

C. Charles Babbage

D. Busicom team and Intel (Masatoshi Shima, Ted Hoff)

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Correct Answer: Option D

Explanation:
The partnership between Busicom and Intel led to the invention of the Intel 4004, the first commercial programmable microprocessor.

This question belongs to: Static General Knowledge Inventions and Discoveries

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