MCQOPTIONS
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MCQOPTIONS
This section includes 21 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 fuel cell operates at temperature below 100.C? |
| A. | phosphoric fuel cell |
| B. | solid polymer electrolyte fuel cell |
| C. | molten carbon fuel cell |
| D. | hydrogen-oxygen fuel cell |
| Answer» D. hydrogen-oxygen fuel cell | |
| 2. |
Which of these should not be a properties of fuel cell electrodes? |
| A. | good electrical conductors |
| B. | highly resistant to corrosive environment |
| C. | should perform charge seperation |
| D. | take part in chemical reactions |
| Answer» E. | |
| 3. |
The hydrocarbons cracked with steam in fuel cells do not give rise to __________ |
| A. | CO |
| B. | CO2 |
| C. | H2 |
| D. | H2O |
| Answer» E. | |
| 4. |
Which of these gases or liquids are not used as source of hydrogen in fuel cells? |
| A. | C2H6 |
| B. | C2H2 |
| C. | C6H6 |
| D. | C2H5OH |
| Answer» E. | |
| 5. |
What is the voltage output of methane-oxygen fuel cell?(in V) |
| A. | -1.16 |
| B. | -1.06 |
| C. | -1.26 |
| D. | -0.96 |
| Answer» C. -1.26 | |
| 6. |
The type of reactions in a fuel cell is not determined by __________ |
| A. | fuel and oxidizer combination |
| B. | composition of electrolyte |
| C. | materials of anode and cathode |
| D. | catalytic effects of reaction container |
| Answer» E. | |
| 7. |
The fuel cell is considered a battery in which ___________ is continuously replaced. |
| A. | fuel only |
| B. | oxidizer |
| C. | both fuel and oxidizer |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 8. |
Fuel cell performance is not limited by __________ |
| A. | First law of Thermodynamics |
| B. | Second law of Thermodynamics |
| C. | Third law of Thermodynamics |
| D. | All three laws are applicable |
| Answer» C. Third law of Thermodynamics | |
| 9. |
Fuel cell converts chemical energy to electrical energy using a reaction that __________ |
| A. | eliminates combustion of fuel |
| B. | requires combustion of fuel |
| C. | requires no ignition of fuel |
| D. | fuel is not required |
| Answer» B. requires combustion of fuel | |
| 10. |
THE_HYDROCARBONS_CRACKED_WITH_STEAM_IN_FUEL_CELLS_DO_NOT_GIVE_RISE_TO?$ |
| A. | CO |
| B. | CO<sub>2</sub> |
| C. | H<sub>2</sub> |
| D. | H<sub>2</sub>O |
| Answer» E. | |
| 11. |
WHICH_OF_THESE_GASES_OR_LIQUIDS_ARE_NOT_USED_AS_SOURCE_OF_HYDROGEN_IN_FUEL_CELLS??$ |
| A. | C<sub>2</sub>H<sub>6</sub> |
| B. | C<sub>2</sub>H<sub>2</sub> |
| C. | C<sub>6</sub>H<sub>6</sub> |
| D. | C<sub>2</sub>H<sub>5</sub>OH |
| Answer» E. | |
| 12. |
Which of these fuel cell operates at temperature below 100.C?$ |
| A. | phosphoric fuel cell |
| B. | solid polymer electrolyte fuel cell |
| C. | molten carbon fuel cell |
| D. | hydrogen-oxygen fuel cell |
| Answer» D. hydrogen-oxygen fuel cell | |
| 13. |
Which of these should not be a properties of fuel cell electrodes?$ |
| A. | good electrical conductors |
| B. | highly resistant to corrosive environment |
| C. | should perform charge seperation |
| D. | take part in chemical reactions |
| Answer» E. | |
| 14. |
Which of these fuel cells operates at high temperatures and pressures? |
| A. | high temperature solid oxide fuel cell |
| B. | alkaline fuel cell |
| C. | molten carbon fuel cell |
| D. | phosphoric acid fuel cell |
| Answer» D. phosphoric acid fuel cell | |
| 15. |
What is the voltage output of carbon-oxygen fuel cell?(in V) |
| A. | -.91 |
| B. | -1.24 |
| C. | -1.02 |
| D. | -1.17 |
| Answer» D. -1.17 | |
| 16. |
What is the voltage output of hydrogen-oxygen fuel cell?(in V) |
| A. | -1.23 |
| B. | -1.45 |
| C. | -1.01 |
| D. | -.93 |
| Answer» B. -1.45 | |
| 17. |
The type of reactions in a fuel cell is not determined by |
| A. | fuel and oxidizer combination |
| B. | composition of electrolyte |
| C. | materials of anode and cathode |
| D. | catalytic effects of reaction container |
| Answer» E. | |
| 18. |
The fuel cell is considered a battery in which ___ is continuously replaced. |
| A. | fuel only |
| B. | oxidizer |
| C. | both fuel and oxidizer |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 19. |
For which of these devices does negative charge carriers flow from anode to cathode in the external circuit? |
| A. | MHD generator |
| B. | Thermionic generator |
| C. | Thermoelectric generator |
| D. | Fuel cell |
| Answer» E. | |
| 20. |
Fuel cell performance is not limited by |
| A. | First law of Thermodynamics |
| B. | Second law of Thermodynamics |
| C. | Third law of Thermodynamics |
| D. | All three laws are applicable |
| Answer» C. Third law of Thermodynamics | |
| 21. |
Fuel cell converts chemical energy to electrical energy using a reaction that |
| A. | eliminates combustion of fuel |
| B. | requires combustion of fuel |
| C. | requires no ignition of fuel |
| D. | fuel is not required |
| Answer» B. requires combustion of fuel | |