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 gramophone?

    A)  Emile Berliner                

    B)  Guglieimo Marconi

    C)  Alexander Graham Bell

    D)  Roger Bacon

    Correct Answer: A

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