Building Technology And Utilities Practice Test

Which inventor is associated with the development of the incandescent light bulb?

Nikola Tesla Thomas Alva Edison Alexander Graham Bell George Westinghouse

Correct Answer:

Thomas Alva Edison

Explanation:

The key idea is understanding who made a practical, long-lasting incandescent light bulb available for widespread use. Thomas Edison and his team conducted extensive experiments, testing thousands of materials for filaments and refining the bulb’s vacuum. Their work led to a carbon filament that could glow for many hours and a bulb design that lasted significantly longer than earlier versions, which is what made electric lighting commercially viable. While others contributed to related technologies—Nikola Tesla with alternating current systems, Alexander Graham Bell with the telephone, and George Westinghouse with power distribution—the person most associated with a durable, market-ready incandescent bulb is Thomas Alva Edison.

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