MCQOPTIONS
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This section includes 12 Mcqs, each offering curated multiple-choice questions to sharpen your Casting knowledge and support exam preparation. Choose a topic below to get started.
| 1. |
Potassium hydroxide boils at what temperature? |
| A. | 1260°C |
| B. | 1320°C |
| C. | 1840°C |
| D. | 2560°C |
| Answer» C. 1840°C | |
| 2. |
Potassium hydroxide melts at what temperature? |
| A. | 260°C |
| B. | 360°C |
| C. | 460°C |
| D. | 560°C |
| Answer» C. 460°C | |
| 3. |
What is the formaldehyde level in phenolic ester in casting? |
| A. | Less than 0.2ppm |
| B. | Less than 0.3ppm |
| C. | Less than 0.4ppm |
| D. | Less than 0.5ppm |
| Answer» E. | |
| 4. |
POTASSIUM_HYDROXIDE_MELTS_AT_WHAT_TEMPERATURE??$ |
| A. | 260°C |
| B. | 360°C |
| C. | 460°C |
| D. | 560°C |
| Answer» C. 460¬¨¬®‚Äö√†√ªC | |
| 5. |
Potassium_hydroxide_boils_at_what_temperature?$ |
| A. | 1260°C |
| B. | 1320°C |
| C. | 1840°C |
| D. | 2560°C |
| Answer» C. 1840¬¨¬®‚Äö√†√ªC | |
| 6. |
What should the total percentage of re-use of sand in reclamation be? |
| A. | 80% |
| B. | 85% |
| C. | 90% |
| D. | 95% |
| Answer» E. | |
| 7. |
What is the phenol level in phenolic ester in casting? |
| A. | Less than 2ppm |
| B. | Less than 3ppm |
| C. | Less than 4ppm |
| D. | Less than 5ppm |
| Answer» B. Less than 3ppm | |
| 8. |
What is the formaldehyde level in phenolic ester in mixing? |
| A. | Less than 0.2 parts per million |
| B. | Less than 0.3 parts per million |
| C. | Less than 0.4 parts per million |
| D. | Less than 0.5 parts per million |
| Answer» E. | |
| 9. |
For casting, in phenolic esters, formaldehyde levels are low. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 10. |
What is the source of fuel of the boiler in process energy? |
| A. | Waste from FA processing |
| B. | Waste from CO<sub>2</sub> production |
| C. | Waste from SO<sub>2</sub> production |
| D. | Waste from NO<sub>2</sub> production |
| Answer» B. Waste from CO<sub>2</sub> production | |
| 11. |
From what is furfural alcohol derived? |
| A. | Carbon dioxide |
| B. | Waste water |
| C. | Waste vegetables |
| D. | Sulphur dioxide |
| Answer» D. Sulphur dioxide | |
| 12. |
What is the pH level of leachate? |
| A. | 1-3 |
| B. | 3-6 |
| C. | 6-9 |
| D. | 9-12 |
| Answer» D. 9-12 | |