Who invented the first practical alternating current (AC) motor and power transmission system? MCQ with Answer and Explanation
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Question #1
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The X-ray was discovered in 1895 by which Nobel laureate?
Correct Answer: Option D
Explanation:
Wilhelm Röntgen discovered X-rays in 1895 and received the first-ever Nobel Prize in Physics in 1901.
Wilhelm Röntgen discovered X-rays in 1895 and received the first-ever Nobel Prize in Physics in 1901.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #2
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The first practical steam-powered water pump, known as the 'Miner's Friend', was invented by whom in 1698?
Correct Answer: Option B
Explanation:
Thomas Savery patented the first commercial steam-driven machine to pump water out of flooded mines.
Thomas Savery patented the first commercial steam-driven machine to pump water out of flooded mines.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
Question #3
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The invention of the iconic acoustic phonograph recording flat disc format (Gramophone) was developed by whom?
Correct Answer: Option A
Explanation:
Emile Berliner introduced flat zinc discs with lateral groove tracking in 1887, outperforming Edison's hollow wax storage cylinders.
Emile Berliner introduced flat zinc discs with lateral groove tracking in 1887, outperforming Edison's hollow wax storage cylinders.
This question belongs to:
Static General Knowledge
Inventions and Discoveries
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