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Mechanical Engineering :: Heat Transfer,Refrigeration and Air Conditioning

  1. During sensible heating of air __________ decreases.

  2. A.
    wet bulb temperature
    B.
    relative humidity
    C.
    dry bulb temperature
    D.
    specific humidity

  3. The overall coefficient of heat transfer is used in problems of

  4. A.
    conduction
    B.
    convection
    C.
    radiation
    D.
    conduction and convection

  5. The boiling point of R-12 is about - 30°C.

  6. A.
    True
    B.
    False