MCQOPTIONS
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MCQOPTIONS
This section includes 11 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Oxidation of manganese liberates more heat than oxides of carbon. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 2. |
OXIDATION_OF_MANGANESE_LIBERATES_MORE_HEAT_THAN_OXIDES_OF_CARBON.?$ |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
In the reducing zone, during the endo-thermic reaction, what is the amount of heat absorbed? |
| A. | 13269 BTU |
| B. | 2910 BTU |
| C. | 14452 BTU |
| D. | 6723 BTU |
| Answer» C. 14452 BTU | |
| 4. |
How much heat is produced in the formation of Carbon dioxide? |
| A. | 13269 BTU |
| B. | 2910 BTU |
| C. | 14452 BTU |
| D. | 6723 BTU |
| Answer» D. 6723 BTU | |
| 5. |
The efficiency of cupola does not depend on heat in the air blast. |
| A. | True |
| B. | False |
| Answer» C. | |
| 6. |
What is the range of efficiency of cupola? |
| A. | 20% to 40% |
| B. | 30% to 50% |
| C. | 40% to 60% |
| D. | 50% to 70% |
| Answer» C. 40% to 60% | |
| 7. |
In the formation of carbon dioxide, what should the temperature of coke be? |
| A. | 55°F |
| B. | 60°F |
| C. | 65°F |
| D. | 70°F |
| Answer» C. 65¬¨¬®‚Äö√†√ªF | |
| 8. |
What is the amount of silica used in a slag? |
| A. | 20% to 30% |
| B. | 30% to 40% |
| C. | 40% to 50% |
| D. | 50% to 60% |
| Answer» D. 50% to 60% | |
| 9. |
Which of the following is not considered under metal charge? |
| A. | Steel scrap |
| B. | Zinc scrap |
| C. | Cast iron scrap |
| D. | Pig iron |
| Answer» C. Cast iron scrap | |
| 10. |
What is contained inside the well of cupola? |
| A. | Molten iron |
| B. | Solid iron |
| C. | Molten steel |
| D. | Solid steel |
| Answer» B. Solid iron | |
| 11. |
Where is the cupola situated above tuyeres for superheating, combustion or oxidizing zone? |
| A. | 15cm to 30cm |
| B. | 25cm to 40cm |
| C. | 35cm to 50cm |
| D. | 45cm to 60cm |
| Answer» B. 25cm to 40cm | |