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. |
Why can coal not be used as a metallurgical fuel? |
| A. | Because of its less purity |
| B. | Due to its high calorific value |
| C. | Due to the high cost of it |
| D. | Due to the presence of less impurities |
| Answer» B. Due to its high calorific value | |
| 2. |
What happens when coke breaks into fine particles during the charging of the furnace? |
| A. | It increases the rate of combustion |
| B. | It cools down the temperature of furnace |
| C. | It chokes the air passages |
| D. | It stops the whole process |
| Answer» D. It stops the whole process | |
| 3. |
Why should be a metallurgical coke porous in nature? |
| A. | To increase its calorific value |
| B. | To provide contact between carbon and oxygen |
| C. | To decrease its ash content |
| D. | For its easy storage |
| Answer» C. To decrease its ash content | |
| 4. |
Which of the following should be present in least amount, so as to give a good metallurgical coke? |
| A. | Ash content |
| B. | Moisture content |
| C. | Volatile matter |
| D. | Sulphur and phosphorous content |
| Answer» E. | |
| 5. |
If the coke formed from the residue of the caking coal is hard, porous and strong then it is called coking coal. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 6. |
Which type of coal gets soften on heating? |
| A. | Caking coal |
| B. | Coking coal |
| C. | Anthracite |
| D. | Semi-bituminous |
| Answer» B. Coking coal | |
| 7. |
Which product is formed after the process of carbonisation? |
| A. | Charcoal |
| B. | Coal tar |
| C. | Coal gas |
| D. | Coke |
| Answer» E. | |
| 8. |
How can we remove volatile matter form briquettes? |
| A. | By baking them |
| B. | By cooling them |
| C. | By heating them |
| D. | By applying some extra pressure |
| Answer» B. By cooling them | |
| 9. |
By which type of coal does briquettes are made? |
| A. | High grade fuel |
| B. | Ultra high grade coal |
| C. | Low grade fuel |
| D. | High grade coal |
| Answer» D. High grade coal | |
| 10. |
Which of the following is a secondary solid fuel? |
| A. | Wood |
| B. | Charcoal |
| C. | Peat |
| D. | Anthracite |
| Answer» C. Peat | |