Railways Technical Ability Refrigeration and Air-Conditioning Question Bank Refrigeration and Air-Conditioning

  • question_answer Consider the following statements:
    In a reciprocating compressor, clearance volume is provided:
    1. so that position does not hit and damage the valves
    2. To account for differential thermal expansion of piston and cylinder
    3. To account for machining tolerances
    4. To achieve isentropic compression
    Which of these statements are correct?

    A) 1, 2 and 3                     

    B) 1, 2 and 4

    C) 1, 3 and 4                     

    D) 2, 3 and 4

    Correct Answer: B


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