The invention of the common mechanical windshield wiper for automobiles was patented by whom? MCQ with Answer and Explanation

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The invention of the common mechanical windshield wiper for automobiles was patented by whom?

A. Josephine Cochrane

B. Mary Anderson

C. Stephanie Kwolek

D. Henry Ford

Answer: Option B

Solution (By JKSSB Mock Tests)

Mary Anderson patented the manual lever-operated windshield clearing arm in 1903 after watching streetcars struggle in sleet storms.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

The blood group system (A, B, O) was discovered by which scientist?

A. Edward Jenner

B. Karl Landsteiner

C. William Harvey

D. Robert Koch

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Correct Answer: Option B

Explanation:
Karl Landsteiner discovered the ABO blood groups in 1900, for which he received the Nobel Prize in Physiology or Medicine in 1930.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

Who discovered the phenomenon of radioactivity in 1896?

A. Wilhelm Röntgen

B. Marie Curie

C. Ernest Rutherford

D. Henri Becquerel

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Correct Answer: Option D

Explanation:
Henri Becquerel discovered radioactivity in 1896 while working with uranium salts, for which he shared the 1903 Nobel Prize in Physics.

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Question #3

The chemical element Fluorine was first isolated after many hazardous attempts by which French chemist?

A. Joseph Louis Gay-Lussac

B. Henri Moissan

C. Marie Curie

D. Antoine Lavoisier

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Correct Answer: Option B

Explanation:
Henri Moissan successfully isolated the highly reactive element fluorine in 1886 using electrolysis, winning the 1906 Nobel Prize in Chemistry.

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