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Railways NTPC (Technical Ability) Internal Combustion Engine (ICE) Question Bank Internal Combustion Engine (ICE)

  • question_answer
    Single-stage vapour compression refrigeration system cannot be used to produce ultralow temperatures because:

    A) Refrigerants for ultra-low temperatures are not available

    B) Lunbricants for ultra-low temperatures are not available

    C) Volumetric efficiency will decrease consider-ably

    D) Heat leakage into the system will be excessive

    Correct Answer: A

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