The safety lamp for miners was invented by whom in 1815? MCQ with Answer and Explanation

Question
The safety lamp for miners was invented by whom in 1815?
A. Michael Faraday
B. George Stephenson
C. Humphry Davy
D. James Watt
Answer: Option C
Solution (By JKSSB Mock Tests)
Sir Humphry Davy invented the Davy lamp, a safety lamp for use in flammable atmospheres in coal mines.
This question belongs to: Static General Knowledge Inventions and Discoveries
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Question #1
The invention of the standard mechanical typewriter carbon paper mechanism to replicate text was patented by whom?
A. John Loud
B. Walter Hunt
C. Pellegrino Turri
D. Christopher Sholes
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Correct Answer: Option C

Explanation:
Pellegrino Turri developed early carbon pigment transfer papers in 1806 to functionalize his experimental typing machines.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #2
Who discovered the process of vulcanization, which makes natural rubber durable and temperature-resistant?
A. Leo Baekeland
B. Wallace Carothers
C. John Dunlop
D. Charles Goodyear
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Correct Answer: Option D

Explanation:
Charles Goodyear accidentally discovered that heating sulfur-treated natural rubber creates a stable, cross-linked polymer matrix.
This question belongs to: Static General Knowledge Inventions and Discoveries
Question #3
Who discovered that certain elements always react in fixed small whole number proportions by weight, establishing the Law of Definite Proportions?
A. John Dalton
B. Joseph Proust
C. Robert Boyle
D. Antoine Lavoisier
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Correct Answer: Option B

Explanation:
French chemist Joseph Proust proved chemical compounds contain fixed constituent mass ratios, verifying early atomic tracking.
This question belongs to: Static General Knowledge Inventions and Discoveries
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