1.

Relative efficiency is the ratio of _________

A. \(\frac{actual \, thermal \, efficiency}{mechanical \, efficiency} \)
B. \(\frac{actual \, thermal \, efficiency}{air-standard \, efficiency} \)
C. \(\frac{air-standard \, efficiency}{actual \, thermal \, efficiency} \)
D. \(\frac{mechanical \, efficiency}{actual \, thermal \, efficiency} \)
Answer» C. \(\frac{air-standard \, efficiency}{actual \, thermal \, efficiency} \)


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