Multiple choice general knowledge science & technology

What George Westinghouse invented?

  1. Light bulb

  2. Electric razor

  3. Refrigerator

  4. Railway air brakes
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

George Westinghouse invented the railway air brake system in 1869, which allowed trains to stop safely by using compressed air to brake multiple cars simultaneously. The light bulb (Edison), electric razor (Col. Jacob Schick), and refrigerator (multiple inventors) were not his inventions.

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