In an optimum four stage compressor system the first and third stage p – McqOptions

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1.	In an optimum four stage compressor system the first and third stage pressure are 1 kg/cm2 and 9 kg/cm2 respectively what will be the fourth stage delivery pressure?
A.	81 kg/cm2
B.	27 kg/cm2
C.	9 kg/cm2
D.	6 kg/cm2
E.	3 kg/cm2
Answer» B. 27 kg/cm2

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