MCQOPTIONS
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MCQOPTIONS
This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Thermodynamics knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
The only process which is different in Carnot and Rankine cycle is |
| A. | compression in pump |
| B. | expansion in turbine |
| C. | heat rejection process |
| D. | heat addition process |
| Answer» E. | |
| 2. |
The efficiency of Carnot cycle is ____ the efficiency of Rankine cycle. |
| A. | less than |
| B. | greater than |
| C. | equal to |
| D. | none of the mentioned |
| Answer» C. equal to | |
| 3. |
The condenser losses include |
| A. | loss of pressure |
| B. | cooling of condensate below saturation temperature |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 4. |
The losses in condenser are ____ |
| A. | small |
| B. | large |
| C. | always constant |
| D. | none of the mentioned |
| Answer» B. large | |
| 5. |
The losses in pump is due to |
| A. | heat loss to surroundings |
| B. | irreversibilities associated with fluid friction |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» C. both of the mentioned | |
| 6. |
Heat loss from turbine is generally neglected. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 7. |
The main losses in turbine include |
| A. | heat loss to surroundings |
| B. | friction losses |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 8. |
The losses in boiler include |
| A. | pressure drop from pump to boiler |
| B. | pressure drop in boiler |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 9. |
The heat transfer and the pressure drop reduces the availability of steam. |
| A. | true |
| B. | false |
| Answer» B. false | |
| 10. |
The important piping losses include |
| A. | pressure drop due to friction |
| B. | heat loss to surroundings |
| C. | both of the mentioned |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 11. |
Which of the following losses occur in a cycle? |
| A. | piping losses |
| B. | pump losses |
| C. | turbine losses |
| D. | all of the mentioned |
| Answer» E. | |
| 12. |
The thermal efficiency of the cycle is |
| A. | Q2 / Wnet |
| B. | Wnet / Q2 |
| C. | Wnet / Q1 |
| D. | Q1 / Wnet |
| Answer» D. Q1 / Wnet | |