MCQOPTIONS
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MCQOPTIONS
This section includes 10 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering Chemistry knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Which method is used for reducing fly ash? |
| A. | Dry bottom |
| B. | Slag-tap |
| C. | Cyclone burner |
| D. | Corner firing |
| Answer» C. Cyclone burner | |
| 2. |
Which type of firing technique is employed for pulverised coal? |
| A. | Oxidation firing |
| B. | Reduction firing |
| C. | Front wall firing |
| D. | Raku firing |
| Answer» D. Raku firing | |
| 3. |
Which type of burners are used for mixing of coal powder and air? |
| A. | Turbulent burner |
| B. | Pressure jet burner |
| C. | Rotatory cup burner |
| D. | Dual fuel burner |
| Answer» B. Pressure jet burner | |
| 4. |
Which of the low grade coal is suitable for pulverising? |
| A. | Coals containing high moisture content |
| B. | Coals with more percentile of impurities |
| C. | Coals with low fixed carbon rating |
| D. | Coals containing high percentile of ash |
| Answer» E. | |
| 5. |
The combustion process of pulverised coal is ________________ |
| A. | Non-uniform and incomplete |
| B. | Non-Uniform and complete |
| C. | Uniform and complete |
| D. | Uniform and incomplete |
| Answer» D. Uniform and incomplete | |
| 6. |
The rate of combustion cannot be easily controlled in combustion of pulverised coal. |
| A. | True |
| B. | False |
| Answer» C. | |
| 7. |
How can we transport pulverised coal? |
| A. | Maintaining suitable conditions of temperature and pressure |
| B. | By suitable packaging of the coal |
| C. | With the help of air compressors |
| D. | By forcing a stream of air |
| Answer» E. | |
| 8. |
In which state does the pulverised coal burns? |
| A. | Gaseous |
| B. | Liquid |
| C. | Solid |
| D. | Colloidal |
| Answer» B. Liquid | |
| 9. |
On what factors does the burning of pulverised coal depends? |
| A. | The calorific value of fuel |
| B. | Bulk density |
| C. | Percentage of volatile matter |
| D. | On the texture of coal |
| Answer» D. On the texture of coal | |
| 10. |
How can we increase the rate of combustion of solid fuel? |
| A. | By storing it in the right conditions |
| B. | By the process of pulverisation |
| C. | By removing the impurities present in it |
| D. | By blending of coal |
| Answer» C. By removing the impurities present in it | |