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. |
In flue gas analysis by Orsat’s apparatus, carbon dioxide is absorbed by __________ |
| A. | cuporus chloride |
| B. | dilute potassium carbonate |
| C. | potassium hydroxide |
| D. | alkaline pyragllol solution |
| Answer» D. alkaline pyragllol solution | |
| 2. |
Oxygen percentage (by weight) in atmospheric air is? |
| A. | 22 |
| B. | 20 |
| C. | 19 |
| D. | 21 |
| Answer» E. | |
| 3. |
With increase in moisture content of coal, its __________ |
| A. | calorific value increases sometimes |
| B. | bulk density always decreases |
| C. | clinkering tendency during combustion increases |
| D. | none of the mentioned |
| Answer» E. | |
| 4. |
What are the main constituents of benzol? |
| A. | benzene, toluene & xylene |
| B. | tar & creosote |
| C. | ammonia & phenol |
| D. | anthracene & phenol |
| Answer» B. tar & creosote | |
| 5. |
_________ has the widest inflammability limit (explosion limit) of all the gases. |
| A. | Carbon monoxide |
| B. | Methane |
| C. | Hydrogen |
| D. | Acetylene |
| Answer» E. | |
| 6. |
The heat of combustion of a fuel __________ |
| A. | is equal to the heat of formation |
| B. | is always negative |
| C. | can’t be known without calculating it |
| D. | is always positive |
| Answer» C. can’t be known without calculating it | |
| 7. |
High excess air in combustion of fuels results in __________ |
| A. | smoky flame |
| B. | increased fuel consumption |
| C. | incomplete combustion |
| D. | none of the mentioned |
| Answer» C. incomplete combustion | |
| 8. |
Caking index of the coal blend used for the manufacture of metallurgical coke should be around __________ |
| A. | 5 |
| B. | 40 |
| C. | 21 |
| D. | 48 |
| Answer» D. 48 | |
| 9. |
Yield of pitch from distillation of high temperature tar is around __________ percent. |
| A. | 10 |
| B. | 25 |
| C. | 65 |
| D. | 100 |
| Answer» D. 100 | |
| 10. |
__________ of the coal is the basis for Seylor’s coal classification. |
| A. | Proximate analysis |
| B. | Calorific value |
| C. | Ultimate analysis |
| D. | Caking index |
| Answer» D. Caking index | |