Who invented the first mass-market portable music device, the Walkman, introduced by Sony in 1979? MCQ with Answer and Explanation

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Who invented the first mass-market portable music device, the Walkman, introduced by Sony in 1979?

A. Akio Morita

B. Steve Jobs

C. Masaru Ibuka

D. Nobutoshi Kihara

Answer: Option D

Solution (By JKSSB Mock Tests)

Audio engineer Nobutoshi Kihara designed the Walkman under the direction of Sony co-founder Akio Morita.

This question belongs to: Static General Knowledge Inventions and Discoveries

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Question #1

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The invention of the first functional high-voltage electrostatic generator capsule was designed by whom?

A. Alessandro Volta

B. Michael Faraday

C. Robert J. Van de Graaff

D. Nikola Tesla

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Correct Answer: Option C

Explanation:
Van de Graaff invented the high-potential belt-driven static generator in 1929 for particle acceleration experiments.

This question belongs to: Static General Knowledge Inventions and Discoveries

Question #2

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Who invented the mechanical cotton spinning machine known as the 'Spinning Jenny' in 1764?

A. Samuel Crompton

B. Richard Arkwright

C. Eli Whitney

D. James Hargreaves

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Correct Answer: Option D

Explanation:
James Hargreaves invented the multi-spool spinning frame, significantly accelerating yarn production in early textile factories.

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Question #3

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Who invented the first successful gas mask used widely in industrial safety and military applications?

A. Nikola Tesla

B. Thomas Edison

C. Garrett Morgan

D. Alexander Fleming

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Correct Answer: Option C

Explanation:
African-American inventor Garrett Morgan patented the safety hood/smoke protector device in 1914, which laid the foundation for modern gas masks.

This question belongs to: Static General Knowledge Inventions and Discoveries

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