Railways Technical Ability Vibration Analysis Question Bank Vibration Analysis

  • question_answer For the fully developed laminar flow and the transfer in a uniformly heated long circular tube, if the velocity is doubled and the tube diameter is halved, the heat transfer coefficient will be:

    A) Double of the original value

    B) Half of the original value

    C) Same as before

    D) Four times of the original value.

    Correct Answer: C

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