The invention of the common marine engineering structure known as the modern offshore oil drilling rig platform was pioneered by whom? MCQ with Answer and Explanation

Question

The invention of the common marine engineering structure known as the modern offshore oil drilling rig platform was pioneered by whom?

A. Charles Parsons

B. John Ericsson

C. Robert Fulton

D. Alden J. Laborde

Answer: Option D

Solution (By JKSSB Mock Tests)

Laborde designed 'Mr. Charlie' in 1953, the first transportable, submersible offshore drilling rig that launched deep-sea oil exploration.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Who invented the electrocardiogram (ECG/EKG) device, winning a Nobel Prize in 1924?

A. Alexander Fleming

B. Robert Koch

C. Willem Einthoven

D. Hans Berger

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Correct Answer: Option C

Explanation:
Willem Einthoven invented the first practical electrocardiogram in 1903 and received the Nobel Prize for it.

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Question #2

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The term 'vitamin' was coined by which biochemist in 1912?

A. Robert Koch

B. Frederick Hopkins

C. Louis Pasteur

D. Casimir Funk

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Correct Answer: Option D

Explanation:
Polish biochemist Casimir Funk coined the term 'vitamine' (later shortened to vitamin) to describe vital amine nutrients.

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Question #3

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Who discovered that solar light presentation presents distinct missing dark absorptive band lines, establishing the Fraunhofer Lines?

A. Robert Bunsen

B. Joseph von Fraunhofer and William Hyde Wollaston

C. Isaac Newton

D. Gustav Kirchhoff

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Correct Answer: Option B

Explanation:
Wollaston observed early dark bands, and Fraunhofer mapped over 570 lines precisely using customized optical spectroscopes in 1814.

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