MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
If dQ is the heat supplied at T and dQ2 is the heat rejected at T2, then efficiency is given by |
| A. | 1-(dQ2/dQ) |
| B. | 1-(dQ/dQ2) |
| C. | (dQ/dQ2)-1 |
| D. | (dQ2/dQ)-1 |
| Answer» B. 1-(dQ/dQ2) | |
| 2. |
If the cyclic integral of dQ/T is greater than zero then the cycle is |
| A. | irreversible but not possible |
| B. | irreversible but possible |
| C. | impossible |
| D. | reversible |
| Answer» D. reversible | |
| 3. |
If the cyclic integral of dQ/T is less than zero then the cycle is |
| A. | irreversible but not possible |
| B. | irreversible and possible |
| C. | impossible |
| D. | reversible |
| Answer» C. impossible | |
| 4. |
According to the Clausius theorem, the cyclic integral of ____ for a reversible cycle is zero. |
| A. | dW/dT |
| B. | dH/dT |
| C. | dQ/dT |
| D. | dE/dT |
| Answer» D. dE/dT | |