Railways Technical Ability Instrument Mechanical Question Bank Instrument Mechanical

  • question_answer Air cooling is used for Freon compressors whereas water jacketing is adopted for cooling ammonia compressors. This is because

    A) Latent heat of ammonia is higher than that of freon

    B) Thermal conductivity of water is higher than that of air                                      

    C) Specific heat of water is higher than that of air

    D) Of the larger superheat from of ammonia compression cycle.

    Correct Answer: A

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