MCQOPTIONS
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MCQOPTIONS
This section includes 4 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
How much is the thermal efficiency of a direct arc furnace? |
| A. | 50% |
| B. | 60% |
| C. | 70% |
| D. | 80% |
| Answer» D. 80% | |
| 2. |
Basic refractories are costlier than acid refractories. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 3. |
Roofs of the furnace have a small life. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 4. |
What is the maximum transformer power supply needed by the direct arc furnace? |
| A. | 35,000 kVA |
| B. | 40,000 kVA |
| C. | 45,000 kVA |
| D. | 50,000 kVA |
| Answer» C. 45,000 kVA | |