The invention of the modern mechanical wristwatch was popularized for military utility by which brand/designer? MCQ with Answer and Explanation
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Question #1
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The invention of the jet engine is attributed to which British engineer?
Correct Answer: Option C
Explanation:
Sir Frank Whittle submitted the first patent for a turbojet engine in 1930, though Germany's Hans von Ohain built the first operational jet plane independently later.
Sir Frank Whittle submitted the first patent for a turbojet engine in 1930, though Germany's Hans von Ohain built the first operational jet plane independently later.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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Who discovered the phenomenon of specific biological chemical pathways known as carbon fixation or the dark reactions of photosynthesis?
Correct Answer: Option C
Explanation:
Melvin Calvin traced the pathway of carbon absorption in plants using carbon-14, establishing the Calvin-Benson Cycle.
Melvin Calvin traced the pathway of carbon absorption in plants using carbon-14, establishing the Calvin-Benson Cycle.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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Who discovered that stable elements possess unique integer identifiers based on X-ray emission frequencies, restructuring atomic numbers?
Correct Answer: Option C
Explanation:
Moseley proved that ordering chemical elements by nuclear charge (atomic number) resolved inconsistencies in Mendeleev's mass-ordered layout.
Moseley proved that ordering chemical elements by nuclear charge (atomic number) resolved inconsistencies in Mendeleev's mass-ordered layout.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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