Which of the following statement is correct?

Question - Which of the following statement is correct?

Options:

A . The ratio of the discharge pressure to the inlet pressure of air is called compressor efficiency.

B . The compression ratio for the compressor is always greater than unity.

C . The compressor capacity is the ratio of workdone per cycle to the stroke volume.

D . During isothermal compression of air, the workdone in a compressor is maximum.

Answer: Option B
Answer: (b).The compression ratio for the compressor is always greater than unity.

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