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Railways NTPC (Technical Ability) Communication System / संचार तंत्र Question Bank Communication System

  • question_answer
    The black and white or monochrome portion of the total colour signal is equivalent in all respects to present........... signals.

    A)  black and white

    B)  red and blue

    C)  yellow and green           

    D)  red and yellow

    Correct Answer: A

    Solution :

    Not Available  


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