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Discussion :: Heat and Mass Transfer

  1. The critical radius is the insulation radius at which the resistance to heat flow is

    2. A.

     Maximum
    B.

     Minimum
    C.

     Zero
    D.

     None of these

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    Answer : Option B

    Explanation :

    It is the radius of insulation before heat transfer increases and after heat transfer decreases.
    The critical radius is the insulation radius at which the resistance to heat flow is Minimum

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