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The criterion of the thermodynamic efficiency for rotary compressor is

A. Isentropic compression

B. Isothermal compression

C. Polytropic compression

D. None of the above

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  17. The clearance volume of the air compressor is kept minimum because
  18. Volumetric efficiency of a compressor decreases with ________ in compression ratio.
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  26. In open cycle turbojet engines used in military aircraft, reheating the exhaust gas from the turbine…
  27. The overall efficiency of the compressed air system is the
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  29. In a high pressure compressor, the delivery pressure is
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