2. Questions Bank
  3. 4th Class
  4. General Knowledge
  5. Science and Technology

4th Class General Knowledge Science and Technology Question Bank Science and Technology

  • question_answer
    Who invented Jet Engine?

    A)  Sir Frank Whittle       

    B)  Gottlieb balmier

    C)  Roger Bacon       

    D)           Lewis E. Waterman

    Correct Answer: A

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