Multiple choice general knowledge

What Frank Whittle invented?

  1. Radar

  2. Ethyl Gasoline

  3. Sonar

  4. Jet propulsion
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

Sir Frank Whittle was a British Royal Air Force officer and engineer who invented the turbojet engine in the 1930s. His invention of jet propulsion revolutionized aviation and led to the development of jet aircraft, though Germany's Hans von Ohain independently developed a similar system around the same time.

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