MCQOPTIONS
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MCQOPTIONS
This section includes 15 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. |
Which of these is not a property of MHD power generation? |
| A. | has no moving part, so is reliable |
| B. | overall generation cost is less |
| C. | closed cycle has almost no pollution |
| D. | conversion is about 80-90% |
| Answer» E. | |
| 2. |
Which is the only fuel better than coal for use? |
| A. | natural gas |
| B. | char |
| C. | kerosene |
| D. | benzene |
| Answer» C. kerosene | |
| 3. |
Which of these materials are not used for MHD duct walls? |
| A. | magnesium oxide |
| B. | strontium zirconate |
| C. | hafnia |
| D. | manganese zirconate |
| Answer» B. strontium zirconate | |
| 4. |
The air at the entrance of MHD duct is seeded with potasium upto ____________ |
| A. | 7% |
| B. | 5% |
| C. | 3% |
| D. | 1% |
| Answer» E. | |
| 5. |
In an open cycle MHD-steam power plant, the temperature at the entrance of MHD duct is (in K)? |
| A. | 2500-3000 |
| B. | 2000-2500 |
| C. | 1500-2000 |
| D. | 2250 |
| Answer» B. 2000-2500 | |
| 6. |
WHICH_IS_THE_ONLY_FUEL_BETTER_THAN_COAL_FOR_USE??$ |
| A. | natural gas |
| B. | char |
| C. | kerosene |
| D. | benzene |
| Answer» C. kerosene | |
| 7. |
Which_of_these_is_not_a_property_of_MHD_power_generation?$ |
| A. | has no moving part, so is reliable |
| B. | overall generation cost is less |
| C. | closed cycle has almost no pollution |
| D. | conversion is about 80-90% |
| Answer» E. | |
| 8. |
To reduce the power consumption of electromagnets, which type of coils have been suggested? |
| A. | cryogenic |
| B. | high temperature resistant |
| C. | superconducting |
| D. | aluminium |
| Answer» B. high temperature resistant | |
| 9. |
Which of these materials not used for MHD duct walls? |
| A. | magnesium oxide |
| B. | strontium zirconate |
| C. | hafnia |
| D. | manganese zirconate |
| Answer» B. strontium zirconate | |
| 10. |
Where is the input of the MHD duct heated in a closed cycle MHD-steam power plant? |
| A. | blast furnace |
| B. | nuclear reactor |
| C. | reverabatory furnace |
| D. | combustion chamber |
| Answer» C. reverabatory furnace | |
| 11. |
In closed cycle MHD-steam power plant, which of the following gas is seeded in the MHD duct? |
| A. | helium |
| B. | xenon |
| C. | sodium vapour |
| D. | chlorine |
| Answer» B. xenon | |
| 12. |
Which of the following device helps in recovery of seeding element? |
| A. | ion precipitator |
| B. | condenser |
| C. | electrostatic precipitator |
| D. | orsat’s apparatus |
| Answer» D. orsat‚Äö√Ñ√∂‚àö√ë‚àö¬•s apparatus | |
| 13. |
Air pollution in an MHD-steam power plant is caused due to the formation of which of the following compounds? |
| A. | oxides and hydroxides |
| B. | chlorides and hydroxides |
| C. | oxides and carbonates |
| D. | carbonates and bicarbonates |
| Answer» B. chlorides and hydroxides | |
| 14. |
The air at the entrance of MHD duct is seeded with potasium upto |
| A. | 7% |
| B. | 5% |
| C. | 3% |
| D. | 1% |
| Answer» E. | |
| 15. |
In an open cycle MHD-steam power plant, the temperature at the entrance of MHD duct is (in K) |
| A. | 2500-3000 |
| B. | 2000-2500 |
| C. | 1500-2000 |
| D. | 2250 |
| Answer» B. 2000-2500 | |