MCQOPTIONS
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MCQOPTIONS
This section includes 10 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. |
Percentage of methane in coke oven gas may be around __________ |
| A. | 5 |
| B. | 15 |
| C. | 25 |
| D. | 35 |
| Answer» D. 35 | |
| 2. |
The hottest part of the flame lies in its ___________ zone. |
| A. | non-luminous |
| B. | luminous |
| C. | yellow |
| D. | unburnt gases |
| Answer» B. luminous | |
| 3. |
A good quality coal should have __________ |
| A. | low fusion point of ash |
| B. | high sulphur |
| C. | high ash content |
| D. | none of the mentioned |
| Answer» E. | |
| 4. |
Out of the following fuels, the difference between the net and gross calorific value is maximum in case of __________ |
| A. | fuel oil |
| B. | blast furnace gas |
| C. | bituminous coal |
| D. | pitch |
| Answer» B. blast furnace gas | |
| 5. |
The difference between total carbon and fixed carbon of coal will be minimum in case of __________ |
| A. | anthracite |
| B. | lignite |
| C. | bituminous |
| D. | high temperature coke (V.M < 0.5%) |
| Answer» E. | |
| 6. |
Cannel coal and boghead coal are the examples of __________ |
| A. | liptobiolites |
| B. | humic coals |
| C. | sapropelic coals |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 7. |
High amount of sulphur and phosphorous in coke causes __________ |
| A. | increase in its strength |
| B. | decrease in its calorific value |
| C. | brittleness of steel made by using it |
| D. | none of the mentioned |
| Answer» D. none of the mentioned | |
| 8. |
The cooling medium used in dry quenching of coke is __________ |
| A. | nitrogen |
| B. | air |
| C. | phenolic water |
| D. | carbon dioxide |
| Answer» B. air | |
| 9. |
Particular coal is said to be free burning when it __________ |
| A. | gives smokeless burning |
| B. | shows little or no fusing action |
| C. | burns completely |
| D. | none of the mentioned |
| Answer» C. burns completely | |
| 10. |
Higher fuel combustion efficiency cannot be achieved by __________ |
| A. | preheating of fuel gases & combustion air |
| B. | supplying correct amount of combustion air |
| C. | reducing sulphur content in the fuel |
| D. | adopting proper fuel firing technique & fuel preparation |
| Answer» D. adopting proper fuel firing technique & fuel preparation | |