Multiple choice general knowledge history

What J. B. Dunlop invented?

  1. Automobile wheel rim

  2. Pneumatic rubber tire

  3. Rubber boot

  4. Model airplanes
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

John Boyd Dunlop invented the pneumatic (air-filled) rubber tire in 1887 for his son's tricycle, later revolutionizing bicycle and automobile tires. This was not an automobile wheel rim (that existed earlier), rubber boot, or model airplanes - the key invention was the air-filled rubber tire concept.

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