MCQOPTIONS
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MCQOPTIONS
This section includes 13 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
With an increase in the combined cycle pressure ratio, the efficiency of the bottoming cycle? |
| A. | increases |
| B. | decreases |
| C. | remains same |
| D. | none of the mentioned |
| Answer» C. remains same | |
| 2. |
What is that temperature called to which the exhaust gases of a gas turbine are cooled? |
| A. | Oxygen Dewpoint |
| B. | Carbon dioxide Dewpoint |
| C. | Nitrogen Dewpoint |
| D. | Sulphuric Acid Dewpoint |
| Answer» E. | |
| 3. |
More the exergy ___________ is the work obtained from the system. |
| A. | more |
| B. | less |
| C. | equal |
| D. | very less |
| Answer» B. less | |
| 4. |
WHAT_IS_THAT_TEMPERATURE_CALLED_TO_WHICH_THE_EXHAUST_GASES_OF_A_GAS_TURBINE_ARE_COOLED_TO??$ |
| A. | Oxygen Dewpoint |
| B. | Carbon dioxide Dewpoint |
| C. | Nitrogen Dewpoint |
| D. | Sulphuric Acid Dewpoint |
| Answer» E. | |
| 5. |
With an increase in the combined cycle pressure ratio, the efficiency of the bottoming cycle?$ |
| A. | increases |
| B. | decreases |
| C. | remains same |
| D. | none of the mentioned |
| Answer» C. remains same | |
| 6. |
What is the optimum pressure ratio range for a gas turbine to obtain optimum efficiency? |
| A. | 7-8.5 |
| B. | 10.5-12 |
| C. | 9.5-10 |
| D. | 10-20 |
| Answer» C. 9.5-10 | |
| 7. |
Gas turbines with intercooling, regeneration & reheat are more suitable for combined cycles. |
| A. | True |
| B. | False |
| Answer» C. | |
| 8. |
Choice of a gas turbine depends most on which of these factors? |
| A. | Compression ratio |
| B. | Cut-off ratio |
| C. | Pressure ratio |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 9. |
The values of dry solid fuel ratio are highest in? |
| A. | Coke |
| B. | Coal |
| C. | Wood |
| D. | Natural Gas |
| Answer» D. Natural Gas | |
| 10. |
Exergic __________ is a measure of the perfectness of a thermal system. |
| A. | enthalpy |
| B. | efficiency |
| C. | strength |
| D. | degree |
| Answer» C. strength | |
| 11. |
Which of these is a measure of energy quality? |
| A. | Entropy |
| B. | Enthalpy |
| C. | Exergy |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 12. |
More the exergy, ___________ is the work obtained from the system. |
| A. | more |
| B. | less |
| Answer» B. less | |
| 13. |
The maximum work attainable as the system comes in equilibrium with surrounding is called? |
| A. | Energy |
| B. | Availability |
| C. | Exergy |
| D. | Entropy |
| Answer» D. Entropy | |