Who invented the dishwasher? MCQ with Answer and Explanation

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Who invented the dishwasher?

A. Thomas Edison

B. Nikola Tesla

C. Josephine Cochrane

D. Alexander Graham Bell

Answer: Option C

Solution (By JKSSB Mock Tests)

Josephine Cochrane invented the dishwasher.

This question belongs to: Static General Knowledge First in the World

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Question #1

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Which country was the first to implement a mandatory national identity card for all citizens?

A. Sweden

B. Japan

C. France

D. Germany

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Correct Answer: Option C

Explanation:
France has a long history of centralized population identity systems.

This question belongs to: Static General Knowledge First in the World

Question #2

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Who invented the safety pin?

A. Charles Goodyear

B. Isaac Singer

C. Walter Hunt

D. Elias Howe

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Correct Answer: Option C

Explanation:
Walter Hunt invented the safety pin.

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Question #3

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Which country built the first supersonic commercial airplane?

A. Soviet Union

B. United States

C. France

D. United Kingdom

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Correct Answer: Option A

Explanation:
The Soviet Tupolev Tu-144 was the first supersonic transport aircraft to fly, in 1968.

This question belongs to: Static General Knowledge First in the World

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