MCQOPTIONS
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MCQOPTIONS
This section includes 9 Mcqs, each offering curated multiple-choice questions to sharpen your Power Plant Engg knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
COAL_USED_IN_POWER_PLANT_IS_ALSO_KNOWN_AS?$ |
| A. | steam coal |
| B. | charcoal |
| C. | coke |
| D. | soft coal |
| Answer» B. charcoal | |
| 2. |
The_temperature_to_which_air_must_be_cooled_in_order_to_become_saturated_is_the$ |
| A. | minimum temperature |
| B. | dew point temperature |
| C. | wet-bulb temperature |
| D. | freezing point |
| Answer» C. wet-bulb temperature | |
| 3. |
Critical pressure of water i? |
| A. | 1 kg / cm<sup>2</sup> |
| B. | 100 kg / cm<sup>2</sup> |
| C. | 155 kg / cm<sup>2</sup> |
| D. | 217.7 kg / cm<sup>2</sup> |
| Answer» E. | |
| 4. |
Water gas is a mixture of |
| A. | CO<sub>2</sub> and O<sub>2</sub> |
| B. | O<sub>2</sub>and H<sub>2</sub> |
| C. | H<sub>2</sub>, N2 and O<sub>2</sub> |
| D. | CO, N2 and H<sub>2</sub> |
| Answer» C. H<sub>2</sub>, N2 and O<sub>2</sub> | |
| 5. |
What is caking in Power Plants? |
| A. | making cakes of coal out of fine powders |
| B. | a variety of free burning coals |
| C. | coal produced from burning of wood in inert atmosphere |
| D. | in boiler furnace some coals become plastic and form lumps or masses of coal |
| Answer» E. | |
| 6. |
Pulverized coal is |
| A. | coal free from ash |
| B. | non-smoking coal |
| C. | coal which bums For long time |
| D. | coal broken into fine particles |
| Answer» E. | |
| 7. |
Internal irreversibility of Rankine cycle is caused by? |
| A. | fluid friction |
| B. | throttling and mixing |
| C. | expansion and compression process are quite rapid |
| D. | All of the mentioned |
| Answer» E. | |
| 8. |
Mean temperature of heat addition can be increased by? |
| A. | decreasing the amount of heat added |
| B. | increase the amount of heat added |
| C. | increase condensor pressure |
| D. | decreasing Turbine Inlet Temperature(TIT) |
| Answer» D. decreasing Turbine Inlet Temperature(TIT) | |
| 9. |
For a given value of mean temperature of heat addition(Tm) |
| A. | efficiency of Rankine is more if turbine exit temperature(Tmin) is less |
| B. | efficiency of Rankine is less if turbine exit temperature(Tmin) is less |
| C. | efficiency does not depend on turbine exit temperature |
| D. | none of the mentioned |
| Answer» B. efficiency of Rankine is less if turbine exit temperature(Tmin) is less | |