GATE Mechanical 2014 Set 3 | Question: 13

Question

Which one of the following pairs of equations describes an irreversible heat engine?

• A. $\oint \delta Q> 0$ and $\oint \dfrac{\delta Q}{T} < 0 \\$
• B. $\oint \delta Q< 0$ and $\oint \dfrac{\delta Q}{T} < 0 \\$
• C. $\oint \delta Q> 0$ and $\oint \dfrac{\delta Q}{T} > 0 \\$
• D. $\oint \delta Q< 0$ and $\oint \dfrac{\delta Q}{T} > 0$